EF2800 Fibre Channel RAID System User Guide
DataDirect Networks EF2800 Fibre Channel RAID Storage System User Guide V 1.
Important Information Information in this document is subject to change without notice and does not represent a commitment on the part of DataDirect Networks, Inc. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose other than the purchaser’s personal use without the written permission of DataDirect Networks, Inc. © 2005 DataDirect Networks, Inc. All rights reserved.
Important Information STANDARD WARRANTY Definitions: This two-year limited warranty applies to the following DataDirect Networks network infrastructure and individual SAN solution components that include: Silicon Storage Appliance Hardware, Drive Modules, RAID Hardware Components, Storage Hardware Components, and Disk Drive Docking Bays and Enclosures (hereinafter “DataDirect Networks Products”).
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Preface Preface What is in this Guide This user guide gives you step-by-step instructions on how to install, configure and connect the EF2800 storage subsystem to your host computer system, and how to use and maintain the system. Who should use this Guide This user guide assumes that you have a working knowledge of the Fibre Channel environment into which you are installing the EF2800 system.
Preface recommended cables and connectors or by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could void the user’s authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Preface Chassis Warning Label: Weight Hazard • An EF2800 enclosure can weigh up to 37kg (81lb). Do not try to lift it by yourself. • Do not attempt to lift the enclosure by means of the extended LRC module or by the handles on the PSU/Cooling module as they are not designed to support the weight of the populated enclosure.
Preface • The EF2800 unit must only be operated from a power supply input voltage range of 100 - 120 VAC or 200-240 VAC. • The plug on the power supply cord is used as the main disconnect device. Ensure that the socket outlets are located near the equipment and are easily accessible. • The equipment is intended to operate with two working PSUs. • If powered by multiple AC sources, disconnect all supply power for complete isolation.
Preface Battery Safety The battery is user replaceable, please refer to the Battery Replacement Procedure. Warning ! There is a danger of explosion if the battery is incorrectly replaced. • Dispose of used batteries in accordance with the manufacturer’s instructions and National regulations. Laser Safety Class 1 Laser Product When the EF2800 is supplied with optical modules they contain a laser that complies with Laser Class 1, US 21 CFR (J) and EN 60825-1.
Preface Consideration of the units nameplate rating should be used when addressing these concerns. • The electrical distribution system must provide a reliable earth for each unit and the rack. • Each power supply in each unit has an earth leakage current of 0.65mA. The design of the electrical distribution system must take into consideration the total earth leakage current from all the power supplies in all the units. The rack will require labelling with “HIGH LEAKAGE CURRENT.
Preface Data Security • Power down your host computer and all attached peripheral devices before beginning installation. • Each enclosure contains up to 16 removable disk drive modules. Disk units are fragile. Handle them with care, and keep them away from strong magnetic fields. • All the supplied plug-in modules and blanking plates must be in place for the air to flow correctly around the enclosure and also to complete the internal circuitry.
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Table of Contents Table of Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 1.1.1 1.2 1.2.1 1.2.2 1.2.3 1.2.4 1.2.5 1.3 1.4 The Enclosure Core Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Enclosure Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents xiv 2.8 2.8.1 2.8.2 2.9 2.9.1 2.9.2 2.9.3 2.10 Powering On the Enclosures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Grounding Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Powering On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Status LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents 5 Creating and Managing Arrays & Partitions . . . 67 5.1 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.3 5.3.1 5.3.2 5.3.3 5.4 5.4.1 5.4.2 5.4.3 Creating Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Managing Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Understanding the Array Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Stopping the Array Initialization Process. . . . . .
Table of Contents xvi 7.3.1 7.3.2 7.3.3 7.4 7.5 7.5.1 Starting and Stopping Remote Notification . . . . . . . . . . . . . . . . . . . .110 Setting Up the Events to be Monitored . . . . . . . . . . . . . . . . . . . . . . . .110 Setting Up the Email Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111 Saving Log Information to a File . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Displaying Overall Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents 9.1.5 9.1.6 9.1.7 9.1.8 9.2 9.2.1 9.2.2 Enabling and Disabling SMART Changes. . . . . . . . . . . . . . . . . . . . . . 136 Blinking a Drive LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Taking Down a Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Testing a Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Managing Enclosures . . . . . . . . . . . . . . . . . . .
Table of Contents 10.14 10.14.1 10.14.2 10.15 10.15.1 10.15.2 10.16 10.17 10.18 10.18.1 10.18.2 10.18.3 10.19 Warning and Error Events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165 Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169 Setting Up and Viewing the Debug Log . . . . . . . . . . . . . . .
Table of Contents B.3 Mixing Disks from Different Manufacturers/ Capacities. . . . . . . . . 191 Appendix C. Accessing Disk Array Administrator Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 C.1 C.2 C.2.1 C.2.2 C.3 C.3.1 C.3.2 Via the RS-232 Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 Via the Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Set Up for First Time Use . . . . . . . .
Table of Contents Appendix E. Monitoring System Status . . . . . . . . . . . . . . . . . 259 E.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259 E.2 E.2.1 E.2.2 E.2.3 E.2.4 Displaying the Event Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 Viewing the Most Recent Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .261 Viewing One Event at a Time . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Appendix H. Configuring the EF2800 . . . . . . . . . . . . . . . . . . . . 297 H.1 H.1.1 H.1.2 H.1.3 H.1.4 H.2 H.3 H.4 H.4.1 H.5 H.6 H.7 H.8 H.9 H.10 H.11 H.12 H.13 H.13.1 H.13.2 Shutting Down and Restarting the Storage Manager Module. . . . . 298 Shutting Down and Restarting the Current SM Module . . . . . . . . 298 Shutting Down the Other SM Module . . . . . . . . . . . . . . . . . . . . . . . . . 299 Shutting Down Both SM Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Contacting Technical Support & Shipping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .357 xxii DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.
1 Introduction The DataDirect Networks EF2800 system is designed as a RAID Subsystem to be used with a host system or Storage Area Network (SAN) with a Fibre Channel (FC) connection and FC disk drives to provide a powerful storage Subsystem. The EF2800 storage Subsystem is a fault-tolerant RAID systems that lets you configure FC disk drives as fault-tolerant arrays. The arrays are presented as logical units to one or two host ports.
Introduction The EF2800 includes the following features: • Fully fault-tolerant, modular design • Sequential data transfers from disk arrays at nearly 700 MB/sec sustained • Greater than 50,000 I/O operations per second (IOPS) capability • Operating system independent, no special software or drivers required • Two 1-Gbit/2-Gbit Fibre Channel host ports on each LRC I/O module.
Introduction • Software upgrades either in-band over FC or out-of-band using RS232 or Ethernet • Continuous runtime monitoring for warnings for out-of-spec CPU temperatures, controller voltages, battery failures, fan failures, and internal errors 1.1 The Enclosure Core Product The EF2800 design concept is based on a subsystem together with a set of plug-in modules.
Introduction 1.1.1 Enclosure Chassis The chassis consists of a sheet metal enclosure assembly containing a backplane PCB and module runner system. This chassis assembly also includes an integral Operators (Ops) Panel mounted at the rear. The chassis assembly contains 16 drive bays at the front, each of which accommodates a plug-in drive carrier module (Figure 3). The 16 drive bays are arranged in 4 rows of 4 drives. Bay numbers are defined by column/row.
Introduction 1.2 The Plug-in Modules An EF2800 Enclosure requires one or more of the following modules for normal operation. 1.2.1 Power Supply/Cooling Module The EF2800 enclosure utilizes two Power Supply/Cooling modules (Figure 5). PSU (power supply unit) voltage operating ranges are nominally 115V or 230V AC, selected automatically. Power Supply AC Input Fail Fan Fault DC Output Fail Figure 5.
Introduction 1.2.2 Operators Panel The Ops Panel (Figure 6) provides the enclosure with a micro controller which is used to monitor and control all elements of the EF2800 enclosure. It is supplied as an integral part of the enclosure. Invalid Address LED Power On LED Enclosure ID Switch Configuration Switches Alarm Mute Switch System Fault LED 1 2 3 4 5 6 7 8 9 10 11 12 PSU/Cooling/Temperature Fault LED 2Gb Link Speed LED Hub Mode LED (not used) ON OFF Figure 6. Ops Panel 1.2.2.
Introduction Figure 7. Ops Panel Switch Functions (Default settings for usage at 2Gb/s) Switch No. 1 Loop Select, Dual (2x8) 2 Not Used 3 Not Used 4 Not Used 5&6 Not Used 7&8 Drive Loop Speed Select 9 & 10 1.2.3 Off SOFT SELECT 12 Not Used Definition LRC operates on two loops of 8 drives (Mandatory) Note: on expansion enclosures this must be set On.
Introduction monitor internal functions. These processors operate in a master slave configuration to allow failover. Figure 8.
Introduction The module incorporates the following status LED indicators (Figure 9): • Expansion Port 1 Rx Good (Green) • Expansion Port 0 Rx Good (Green) • System Ready (Green) • Battery Fault (Amber) • Cache Active (Green) • RAID Controller Activity • Host Port 1 Signal Good (Green) • Host Port 0 Signal Good (Green) NOTE: Fitting of a RAID controller to the LRC module is a factory only operation. ! Do not attempt to lift the enclosure by means of the extended I/O module.
Introduction 1.2.4 Drive Carrier Module The Drive Carrier module comprises a hard disk mounted in a carrier. Each drive bay will house a single 1.0-inch high, 3.5-inch disk drive in its carrier (Figure 10). Each disk drive is enclosed in a die-cast aluminum carrier which provides excellent thermal conduction, radio frequency and electromagnetic induction protection and affords the drive maximum physical protection.
Introduction 1.2.4.2 Anti-Tamper Locks Anti-tamper locks are fitted in the drive carrier handles (Figure 11). The lock can be accessed through the small cutout in the latch section of the handle, using a T10 Security Torx type bit. These locks are provided to disable the normal “pinch” latch action of the carrier handle. NOTE : Do NOT overtighten the anti-tamper lock! Indicator Aperture Anti-Tamper Lock Turn key clockwise to lock Turn key counter-clockwise to unlock Figure 11.
Introduction 1.3 Visible and Audible Alarms The functional modules have associated status LEDs. The Ops Panel shows a consolidated status for all modules. LEDs show constant green for good or positive indication. Constant amber LEDs indicate there is a fault present within that module. The Ops Panel also incorporates an audible alarm to indicate when a fault state is present and also an Alarm Mute push-button.
Introduction Figure 12. EF2800 Internal Drive Loop Structure Each FC loop is routed through an independent SM module fitted in the rear of the enclosure. Either of these may be removed while the other is operating, thus providing fully redundant FC operation. DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.
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2 Getting Started In this chapter, you are shown how to install your EF2800 RAID enclosure (and plug-in modules) into an industry standard 19-inch rack cabinet. NOTE: The installation, configuration, and use of the EF2800 RAID system in all but the most basic of environments requires certain expertise on the part of the user.
Getting Started 2.1 Planning Your Installation Before you begin installation you should become familiar with the configuration requirements of your EF2800 system, detailed in Figure 13. The correct positions of each plug-in modules are shown in Figure 15. Figure 13. EF2800 Configuration Module 2.1.
Getting Started 5 PSU/Cooling 1 4 Storage Manager B 3 2 Storage Manager A 1 Ops Panel PSU/Cooling 2 Figure 15. Module Locations at Rear The EF2800 system is housed in a 4 × 4 enclosure, i.e. 4 bays wide by 4 bays high. The front bays are numbered 1 to 4 from left to right, when viewed from the front, and 1 to 4 from top to bottom. Drive Carrier Module locations are identified from a matrix of the top and side numbers.
Getting Started • Weight of up to 81.4lbs (37kg), dependent upon configuration per enclosure • A minimum gap of 1" (25mm) clearance between the rack cover and front of drawer; and 2" (50mm) rear clearance between rear of drawer and rear of rack is recommended in order to maintain the correct air flow around the enclosure. • The rack should present a maximum back pressure of 5 Pascals (0.5mm water gauge). A vented rear door or no door at all are the recommended configurations. 2.2.
Getting Started 2.2.3 Installing the Enclosure in Rack CAUTION: The EF2800 enclosure with all its component parts installed is too heavy for easy installation into a rack cabinet. The following procedures describe the installation of the enclosure and highlights any critical co-requisite requirements and good handling practices which we encourage you to follow so as to ensure that a successful installation is achieved in the easiest manner. 1. Install the two rail/support assemblies in the rack.
Getting Started Similarly, assemble and install the rail/support assembly in the other side of the rack frame, making sure that the two rails are level (horizontally) in the rack. Rear of Rack #10 Screw (2) Front of Rack Screw Holes for Securing Rear of Chassis #10 Screw (2) Figure 17. Fastening Rail/Support Assembly to Rack (Left Hand Assembly) 2. To reduce the weight of the unit, it is best to remove the power supplies and drive modules from the enclosures.
Getting Started information on how to disengage the lock. Dummy modules may be left in the slots. 3. Carefully place the chassis on the two rail/support assemblies and push it all the way into the rack. If in doubt about correct orientation, the drive bays (at front) should have their black drive connectors toward the bottom of each bay. 4. Secure the front of the chassis to the rack frame by inserting four #10 screws (two on each side) through the holes in the flanges and into the rack frame.
Getting Started 2.3 Power Supply/Cooling Module Installation Install in the rear of the enclosure in bays 1 and 5. ! Warning 2.3.1 Do not remove covers from the Power Supply/Cooling (PSU) module. Danger of electric shock inside. Return the PSU to your supplier for repair. Parts Check List • Two Power Supply/Cooling Modules 2.3.2 Procedure NOTE: PSU2 (RH rear bay) must be fitted “upside-down” as shown in Figure 15. 1. Check for damage, especially to the rear connector on the supply.
Getting Started 3. Slide the module into the enclosure. The modules should be installed in bays 1 and 5, as shown in Figure 21. NOTE: Install the Power Supply/Cooling module in the right hand bay (Rear Bay 1) of the enclosure in an “upside down” orientation. PSU 2 PSU 1 Figure 21. Module Locations 4. Cam the module home by manually closing the handle. A click should be heard as the handle latches engage (Figure 22). Figure 22.
Getting Started 2.4 Controller I/O Module Installation ! Do not attempt to lift the enclosure by means of the extended SM modules. Warning 2.4.1 Parts Check List • 2 Controller I/O Modules or, • 1 Controller I/O Module with 1 Blank I/O module NOTE: The enclosure may be configured with either one or two Controller modules. If only one Controller is fitted it must be installed in rear bay 4 (Controller B location as shown in Figure 15 on page 17) and a Blank I/O module fitted in the unused bay. 2.4.
Getting Started 3. Slide the module into the enclosure until the latches engage automatically. The modules should be installed in rear bays 3 and 4 of the enclosure (Figure 24). Note that the LH and RH modules are installed in opposite orientations. Storage Manager B Storage Manager A Figure 24. Module Locations 4. Cam the module home by manually closing the latches (Figure 25). A click should be heard as the latches fully engage. Figure 25.
Getting Started 2.5 Drive Module Installation Each EF2800 enclosure holds up to 16 drive modules. The SES (SCSI Enclosure Services) requires disks to be present in bays 1/1 and 4/4 of each enclosure (indicated by shaded background in Figure 26). The drives are not pre-formatted and can be inserted in any order. NOTE: When planning your system configuration, please remember that all drive bays must be filled with either a drive module or dummy module, no bays should be left completely empty.
Getting Started Figure 28. Inserting the Drive Module 5. You may activate the anti-tamper locks on the drive module handles. Carefully insert the lock key provided into the cutout in the handle and align it with the socket. Rotate the key in a clockwise direction until the lock indicator is visible in the aperture beside the socket (Figure 29). Do not over-tighten the anti-tamper lock.
Getting Started 2.6 Verify Configuration Switch Settings on Ops Panel Verify that the settings for the configuration switches on the Ops panel (Figure 30) are the same as listed in Figure 31. Invalid Address LED Power On LED Enclosure ID Switch Configuration Switches Alarm Mute Switch System Fault LED 1 2 3 4 5 6 7 8 9 10 11 12 PSU/Cooling/Temperature Fault LED 2Gb Link Speed LED Hub Mode LED (not used) ON OFF Figure 30. Configuration Switches on Ops Panel Figure 31.
Getting Started 2.7 Connecting the Enclosure to FC Host and Disk Ports The (I/O) interface module provides a Fibre Channel interface via small form-factor pluggable connection (SFPs) that can be either copper HSSDC-2 connectors for copper or optical (LC optical cable) connection. Copper (1M max.) SFP to SFP patch cables are also supported (for enclosure to enclosure connection only). Each I/O or Loop Resiliency Circuit board houses Port Repeater chips that re-drive the Fibre Channel signals.
Getting Started • You must use approved FC components (for example, standard 3.3volt small form-factor pluggable [SFPs] and FC cable, either optical or copper) that you can purchase from your supplier. The SFP connector is available in two versions: Copper and Optical. • You can connect additional disk enclosures by daisy-chaining them using the patterns shown in Figure 33. Figure 33.
Getting Started 2.7.1 Expansion Enclosures Multiple enclosures are connected together by using SFP to SFP approved patch cables, or SFPs and optical LC to LC cables. Up to 14 expansion enclosures can be connected to the EF2800 (Figure 33). NOTE: Loss of power to any enclosure within such a loop will cause the loop to fail. Power Up Ensure that all attached JBOD enclosures are fully powered up and all hard drives have spun up prior to powering on the EF2800 enclosure.
Getting Started Figure 34.
Getting Started Figure 34.
Getting Started 2.7.3 Connecting to the RS-232 Port (Optional) You can optionally use the RS-232 port to configure and monitor the EF2800 system using a computer with a VT-100 or ANSI terminal emulator. You can connect to the RS-232 port on each SM. For more information about the configuration and management capabilities using the RS-232 port and the Disk Array Administrator software, see Appendix C. You must use the RS-232 cable that came with the EF2800 or one configured like it.
Getting Started • Data Bits: 8 • Stop Bits: 1 • Parity: None • Flow Control: None or software Xon/Xoff To connect to the RS-232 port: 2.7.4 1. Be sure the EF2800 is turned off. 2. Using the RS-232 cable that came with the EF2800, connect the jack plug end of the cable to the RS-232 serial port on one of the SMs. 3. Connect the DB-9 adapter to the serial (COM) port on the computer that will monitor and configure the EF2800. 4. Connect the other end of the RS-232 cable to the DB-9 adapter. 5.
Getting Started To connect to the Ethernet port: 1. Connect one end of the Ethernet cable (RJ-45) to the Ethernet port on one of the SM modules. Note that you must use shielded Ethernet cable. 2. Connect the other end of the Ethernet cable to a network hub, controller, or other network connection. For information about configuring the EF2800 to use the Ethernet port, see Section 3.2, "Configuring the EF2800 for TCP/IP" on page 45. 3. Repeat steps 1 and 2 on the other SM module.
Getting Started 2.8.2 Powering On Before powering up your EF2800 enclosure please ensure that all the modules are firmly seated in their correct bays and that blank modules are installed in any unused bays. 1. Attach the power cords to the Power Supply/Cooling Modules. For maximum redundancy, connect the two power cords on EF2800 (and expansion enclosures) to two different AC power circuits. 2. Turn on the switch on all Power Supply/Cooling modules. Verify that the PSU LEDs are green.
Getting Started 2.9 Status LED Indicators 2.9.1 Power Supply/Cooling Module LEDs The power supply/cooling module incorporates 4 LEDs (Figure 35), located below the On/Off switch. Under normal conditions the LEDs should all be illuminated constant green. If a problem is detected the color of the relevant LED will change to amber. Power Supply DC Output Fail Fan Fault AC Input Fail Figure 35. PSU LEDs 2.9.
Getting Started Figure 37.
Getting Started Figure 37. Ops Panel LED States Ops Panel LEDs Power (Green) On PSU/ Cooling/ Temp (Amber) System (Amber) Address Mode Error (Amber) Loop Speed On Other Associated LEDs or Alarm State Description 2Gb Drive loop speed selected RAID ONLY Host side Hub mode enabled On Please refer to Chapter 10, "Troubleshooting and Problem Solving" on page 141 for details of any fault indication. 2.9.
Getting Started 2.10 Understanding how the SMs Work Together The following terms are associated with how the pair of SM modules work together:. • SM A and B: One SM module is designated as SM module A (right hand module when viewed from the rear) and the other is designated as SM module B (left hand module). When both SM modules start at the same time, they exchange information related to their current configuration and the ownership of resources.
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3 Accessing the EF2800 SAM Software You can monitor and manage your EF2800 using the EF2800 Storage Array Manager (SAM) software. You should review the following sections to ensure that you are set up to use SAM: • 3.1, ”SAM System Requirements”, on page 44 • 3.2, ”Configuring the EF2800 for TCP/IP”, on page 45 • 3.3, ”Accessing SAM”, on page 48 • 3.4, ”Configuring the IP Settings Using SAM”, on page 52 • 3.
Accessing the EF2800 SAM Software 3.1 SAM System Requirements You can use SAM from any computer on your network that meets the following minimum system requirements: • 300 MHz CPU • 64 MB RAM • Windows 98, NT 4.0, or 2000 or later; or Sun Solaris 2.7 or later • Netscape Navigator 4.1 or later or Microsoft Internet Explorer 4.0 or later (configured as described below) 3.1.
Accessing the EF2800 SAM Software 3.1.1.2 Disable your Pop-Up Window Control Software SAM uses pop-up windows for several functions. You should disable any software you have installed that disables pop-up windows in your browser. 3.1.1.3 Set Monitor’s Color Display You should set your monitor’s color display to the highest setting possible. The following steps describe how to do this for Windows 98, NT, or 2000. To set your color display: 3.2 1. Right-click your Windows desktop. 2.
Accessing the EF2800 SAM Software 3.2.1 Accessing EF2800 via Serial Port & Disk Array Administrator You can access the EF2800 using the RS-232 serial port to set the permanent IP addresses. You must use a straight-through serial cable. You cannot use a null modem cable.
Accessing the EF2800 SAM Software Figure 39. Disk Array Administrator Initial Screen 4. Press . The System Menu displays (Figure 40). Figure 40. System Menu 5. Select Configuration Menu and press . The Configuration Menu displays. 6. Select LAN Configuration and press . The LAN Configuration screen displays. 7. Select IP Settings and press . The IP Settings screen displays. 8. Select IP Address and press . The IP Address screen displays. 9.
Accessing the EF2800 SAM Software 10. The system prompts you to confirm changes. Select Yes and press . The system makes the change. 11. Repeat steps 7 through 10 above for the IP Subnet Mask and IP Gateway options. 12. Repeat steps 1 through 11 for the other SM. You can now use the IP addresses you set to access the EF2800 using SAM. For information about accessing SAM, see section 3.3 below. 3.
Accessing the EF2800 SAM Software 2. Enter the IP address for one of the EF2800 SMs in the browser’s Address or Location field and press . The SAM Login page displays (Figure 41). If the page does not display, be sure that you entered the correct IP address. You must be sure that you have set up either a temporary or permanent IP address for at least one SM. For information about setting up the IP addresses for the first time, see Section 3.2 on page 45.
Accessing the EF2800 SAM Software of the window to perform each function including creating arrays, viewing EF2800 status, and configuring the host and device ports. Figure 42. SAM Status Summary Page You can access all SAM functions from either SM. If one SM becomes unavailable, you can continue to the monitor and manage the EF2800 from the other SM. 3.3.
Accessing the EF2800 SAM Software selecting on the page does not get lost during the refresh process. If you want to refresh the page, click the icon. Any information you have entered or selected will change back to the previous settings. 3.3.2 Navigating in EF2800 SAM You navigate SAM using your mouse and the SAM menu on the left side of each page: • To select a menu item: Click the menu item in the SAM menu on the left side of each SAM page.
Accessing the EF2800 SAM Software 3.4 Configuring the IP Settings Using SAM If you accessed SAM for the first time using the default IP you should set up the permanent IP address for each SM. You can also the change the IP address information as needed. You can set three IP-related settings in SAM: • IP Address: Internet Protocol address of the EF2800. Factory default is 10.0.0.1. You need two IP addresses, one for each SM. • IP Mask: Subnet mask. Factory default is 255.255.255.0.
Accessing the EF2800 SAM Software You will lose access to the EF2800 after the change takes effect. If the EF2800 is not already connected to your LAN, you should connect it now. You should now use the new IP addresses you just set up to access the EF2800 using SAM. For more information, see Section 3.3, "Accessing SAM" on page 48. 3.4.1 Configuring the HTTP Setting By default, hypertext transfer protocol (HTTP) is enabled on the EF2800.
Accessing the EF2800 SAM Software To set SAM passwords: 3.5.2 1. From SAM, select Manage EF2800 > General Config > Passwords/ Security. The Passwords/Security page displays. 2. In the Password Configuration panel, enter the Monitor and Manage passwords. You can enter up to 31 characters for each password. You can only use letters, numbers, and underscores. 3. Click Change. Setting Your User Preferences You can set your user display preferences to meet your needs... To set your user preferences: 1.
Accessing the EF2800 SAM Software - SAM Configuration Mode: Select whether you want to save the preferences for all SAM sessions and users or for just this SAM session. 3. Click Change Preferences to save your changes. DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.
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4 Setting Up the EF2800 SAM lets you set up the FC ports and restart the EF2800. You can:. • Set up the host ports (see section 4.1) • Set up the FC device ports (see section 4.2) • Shut down and restart the SMs (see section 4.3) 4.1 Setting Up the Host Ports You can set up these host port options: • Link speed: Sets the speed to 1 Gbit/second or 2 Gbit/second based on your configuration needs (Section 4.1.1). • Loop ID: If the topology is loop, sets the host port loop ID for each SM (Section 4.1.2).
Setting Up the EF2800 4.1.2 FC Host Port Loop IDs If the topology is set to loop, you can set up the FC loop ID for each SM’s host ports. You may need to change the FC loop ID if you want the SM to be at a specific address or if your system checks addresses in reverse order (lowest address first). You must restart both SMs after changing the loop ID. To set up the host port loop IDs: 1. In SAM, select Manage EF2800 > General Config > Host Port Configuration. The Host Port Configuration page displays. 2.
Setting Up the EF2800 4.1.3 FC Host Port Topology You can set up the FC topology for each host port. You should be sure that the topology setting is correct for your configuration... To set up the host port topology: 1. In SAM, select Manage EF2800 > General Config > Host Port Configuration. The Host Port Configuration page displays. 2. In the Advanced Options panel, click the blue Change Host Port Topology text. A second Host Port Configuration page displays.
Setting Up the EF2800 4.2 Setting Up the FC Device Ports You can set up two FC device port options: • Loop ID: Sets the device port loop ID for each SM (Section 4.2.1). • Link speed: Sets the speed to 1 Gbit/second or 2 Gbit/second based on what the port is connected to (Section 4.2.2). 4.2.1 FC Device Port Loop IDs The EF2800 assigns each of its FC device ports one of the FC loop IDs. You can change the loop ID assigned to each port.
Setting Up the EF2800 4.3 Restarting the SMs You have several options when you need to shut down or restart an SM: • Restart one or both SMs: Gracefully shuts down and restarts the selected SM module. This restarts both the storage manager and the LAN Subsystem on the SM module and ensures that any data in the SM’s write-back cache is written to disk.
Setting Up the EF2800 4.3.1 Restarting the SMs You may need to restart one or both SM modules when you have changed a configuration that requires restarting (SAM messages say when you need to do this) or when an SM module does not seem to be working properly. This shuts down and restarts both the storage controller and the LAN Subsystem on the SM module and ensures that any data in the write-back cache is written to disk.
Setting Up the EF2800 4.3.2 Shutting Down the SMs You may need to shut down one or both SM modules when you plan to power down the whole EF2800 system. This shuts down both the storage manager and the LAN Subsystem on the SM module and ensures that any data in the write-back cache is written to disk. If you shut down both SM modules, you will lose access to SAM and users will lose access to data. To restart the SM modules, you must first turn off the power, then turn the power back on.
Setting Up the EF2800 4.3.3 Putting an SM Offline You can put an SM module offline. This gracefully takes the SM module offline, which halts I/0 and makes sure that any data in the write-back cache is written to disk. Use this option when you need to replace an SM module. CAUTION: To ensure continuous availability of the system, be sure that the other SM module is online. For more information, see Section 7.1, "Displaying SAM Status Information" on page 105.
Setting Up the EF2800 To put an SM online: 4.3.5 1. From SAM, select Manage EF2800 > Manage Modules. The Modules Online/Offline page displays. 2. Click the Module Link of the module you want to put online. The options available for the selected module display below. The options available depend on the module selected and its status. 3. Select Put SM Online. 4. Click Perform this Operation to put the selected module online.
Setting Up the EF2800 4.3.6 Restarting the LAN Subsystem If you are having difficulty communicating with the EF2800, you can restart the LAN Subsystem in each SM. To restart the LAN Subsystem: 1. From SAM, select Manage EF2800 > Manage Modules. The Modules Online/Offline page displays. 2. Click the Module Link of the SM module whose LAN Subsystem you want to restart. 3. Select Restart LAN Subsystem. 4. Click Perform this Operation to restart the LAN Subsystem.
5 Creating and Managing Arrays & Partitions Using SAM, you can create and manage arrays and partitions. You can perform the following array-related functions: • Create arrays (see page 67) • Manage arrays (see page 74) • Manage partitions (see page 78) • Manage spares (see page 82) 5.1 Creating Arrays You can create an array anytime you have enough available disk drives for the array type you want to create. One SM module owns each array you create.
Creating and Managing Arrays & Partitions Figure 45. Array drive requirements by RAID level RAID level Minimum number of drives per array Maximum number of drives per array Volume 1 1 RAID 0 2 16 RAID 1 (Mirrored) 2 16 RAID 3 3 16 RAID 4 3 16 RAID 5 3 16 RAID 10 4 16 RAID 50 6 32 NOTE: Before you create more than one array, you must be sure that your host operating system supports multiple logical unit numbers (LUNs).
Creating and Managing Arrays & Partitions Figure 46. SAM - Create New Array Screen 2. Enter the array name. You can use up to 20 characters. You can use any character on your keyboard (any printable ASCII character), except double quotes (“). You can change the name later. 3. Select the RAID level. Select the type of array you want to create. A volume is a single drive similar to just a bunch of disks (JBOD) except that it includes metadata. For more information about RAID levels, refer to Appendix B.
Creating and Managing Arrays & Partitions Figure 47. SAM - Select Drives for Array 6. Select the drives you want to use in the array. All available drives are listed. Available drives are those that are not members of an array and are not assigned as a dedicated or global spare. You may want to select drives from different LRC I/O modules, which keeps the array online even if one LRC I/O module becomes unavailable. 7.
Creating and Managing Arrays & Partitions 10. If you selected Yes to adding dedicated spares, select the drives you want add as dedicated spares and click Continue. The Configure Partition screen appears (top panel shown) (Figure 48). Figure 48. SAM - Configure Partition for Array 11. Select the following options for your array: - How Many Partitions?: Select the number of partitions you want in your array. The partitions discussed here are logical subdivisions of an array to which you can assign a LUN.
Creating and Managing Arrays & Partitions select No, you can name your partitions later (see Section 6.3.2, "Changing a Partition Name" on page 96). - Advanced Array Creation Options: Click Advanced Options if you want to set the following, then click Continue: - Array Chunk Size: The default is 64 KB. The chunk size is the amount of contiguous data that is written to an array member before moving to the next member of the array.
Creating and Managing Arrays & Partitions After you click Create Array, the array exists and any drives you assigned to the array are no longer available for other uses. What displays here depends upon the options you selected in the previous page. It displays either a progress bar or fields to set up your partitions, depending on your selections. 13.
Creating and Managing Arrays & Partitions You can perform other functions during the initialization. If you find that you need to change the disk drives or some other array configuration, you can stop the array initialization process (see Section 5.2.2 on page 75). NOTE: Most operating systems, such as Windows NT 4.0, require you to restart the host system to see a new LUN. Windows 2000 can recognize new LUNs by selecting Refresh from the Computer Management Window. NetWare v3.
Creating and Managing Arrays & Partitions Figure 50. Array Icons Icon Description Array utility (Verify, Reconstruct, or Expand) is running. The utility and percent complete display. You can continue using an array in this state. Array is offline, which means that you cannot use the array. 5.2.2 Stopping the Array Initialization Process If you need to change the disk drives or some other array configuration, you can stop the array initialization process.
Creating and Managing Arrays & Partitions If a Reconstruct does not start automatically, it means that no valid spares are available. To start a Reconstruct, replace the failed drive, and add the new drive as a dedicated spare (see Section 5.4.2.1 on page 84) or as a global spare (see Section 5.4.3.1 onpage 85). Remember that any global spares added might be used by any critical array, not necessarily the array you want.
Creating and Managing Arrays & Partitions Figure 51. Drive additions by RAID level RAID Level Number of Drives you can add Max. # of Drives RAID 0 1 to 4 at a time up to the maximum 16 RAID 1 (Mirrored) Cannot expand 16 Volume Set Cannot expand 1 RAID 10 2 or 4 at a time up to the maximum 16 RAID 3, 4, or 5 1 to 4 at a time up to the maximum 16 RAID 50 You can expand the array, one RAID 5 array at a time up to the maximum number of drives.
Creating and Managing Arrays & Partitions 5.3 Managing Partitions The SAM software lets you manage partitions in a variety of ways... You can: • Add a partition (see page 80) • Expand a partition (see page 81) 5.3.1 Understanding Partitions The partitions discussed here are logical subdivisions of an array to which you can assign a LUN. You can add, expand, rename, change the LUN, and delete partitions using SAM.
Creating and Managing Arrays & Partitions Free Space Partition 1 Figure 53. Array after creating one partition SAM assigns each partition a unique serial number and sequence number. It assigns sequence numbers in the order the partitions are created, so the first partition on an array is number 1, the second is 2, and so on. You can create additional partitions in the remaining free space or you can expand a partition with some limitations.
Creating and Managing Arrays & Partitions 5.3.2 Adding a Partition You must have free space in the array before you can add a partition. You can create free space by deleting an existing partition or by expanding the array. For more information, see Section 5.2.4 on page 76. You can add partitions on an array until you use all of the free space. For more information about partitions, see Section 5.3.1 on page 78. To add a partition: 1. From SAM, select Manage EF2800 > LUN Management > Add Partition.
Creating and Managing Arrays & Partitions 5.3.3 Expanding a Partition You can expand an existing partition, with some limitations. You can only expand a partition into contiguous, following, free space. For more information about partitions, see Section 5.3.1 on page 78. To expand a partition: 1. From SAM, select Manage EF2800 > LUN Management > Expand Partition. The Expand Partition page displays with a list of existing arrays. 2.
Creating and Managing Arrays & Partitions 5.4 Managing Spares RAID controllers automatically reconstruct redundant (fault-tolerant) arrays (RAID 1, RAID 3, RAID 4, RAID 5, RAID 10, and RAID 50) if an array becomes critical and a properly sized spare drive is available. An array becomes critical when one or more member drives fails.
Creating and Managing Arrays & Partitions 5.4.1 Enabling Dynamic Spares The Dynamic Spares option lets you use all of your disk drives in redundant arrays, without assigning one as a spare. For example, if you enable Dynamic Spares and a drive fails, you can replace the drive and the EF2800 will rescan the bus, find the new disk drive, and automatically start reconstruction of the array. You do not have to assign the new drive as a spare for the reconstruct to start.
Creating and Managing Arrays & Partitions 5.4.2 Managing Dedicated Spares Dedicated spares are available disk drives that you assign as a spare to a specific array. The disk drive must be as large as the smallest member of the array. You cannot use a dedicated spare drive as a member of an array or as a global spare. Although using a dedicated spare is the most secure way to provide spares for your arrays, it is also expensive to keep a spare drive assigned to each array.
Creating and Managing Arrays & Partitions 5.4.2.2 Deleting a Dedicated Spare You can delete a dedicated spare drive from an array at any time... To delete a dedicated spare: 1. From SAM, select Manage EF2800 > Disk Array Config > Delete Dedicated Spare. The Delete Dedicated Spare page displays with a list of existing arrays and dedicated spares. 2. In the EF2800 Storage Array Overview panel, select the array you want to delete a spare from. 3.
Creating and Managing Arrays & Partitions displays listing all available drives. If a drive was a member of an array and was removed from the array, you cannot use it as a spare until you clear the drive’s metadata. For more information, refer Section G.1.2, "Clearing Metadata from a Drive" on page 288. 5.4.3.2 2. Select the drive you want to add as a global spare. 3. Click Add Global Spares. Deleting a Global Spare You can delete a global spare at any time... To delete a global spare: 5.4.3.3 1.
6 RAID Management 6.1 Managing Arrays and Partitions Using SAM Using SAM, you can manage arrays and partitions.
RAID Management 6.2 Managing Arrays SAM lets you manage your arrays in a variety of ways. You can: • View array and drive status (see page 88) • View and reset array statistics (see page 89) • Verify an array (see page 91) • Change array owner (see page 92) • Change the array name (see page 93) • Trust an array (see page 93) • Delete an array (see page 95) 6.2.1 Viewing Array and Drive Status Information Array status information is available from many pages in SAM.
RAID Management 6.2.2 Viewing Array and Partition Statistics You can view the current array and partition rate and cumulative statistics.
RAID Management To view the cumulative statistics: • From SAM, select Monitor EF2800 > Statistics > Cumulative Part Stats. 6.2.2.1 Resetting All Statistics You can reset the following array and partition statistics to zero: • Read • Write • SecRd • SecWt • I/O Size NOTE: Resetting statistics here resets all statistics for the EF2800. You may want to reset the statistics if you are monitoring performance. You may also want to reset statistics when you change how you are using a partition.
RAID Management 6.2.3 Verifying an Array The Verify function allows you to verify the data on redundant arrays (RAID 1, RAID 3, RAID 4, RAID 5, RAID 10, and RAID 50): • RAID 3, RAID 4, RAID 5, and RAID 50: Verifies all parity blocks in the selected array and corrects any bad parity • RAID 1 and RAID 10: Compares the primary and secondary drives. If a mismatch occurs, the primary is copied to the secondary You may want to verify an array when you suspect there is a problem. To verify an array: 1.
RAID Management 6.2.4 Changing Array Ownership You can change the ownership of any array between the SMs. When you create an array, SAM automatically selects the owner and balances the number of arrays each SM owns. You can select the array owner when you create an array by clicking Advanced Options from the third Create Array page. In most situations, which SM owns the array does not matter. A single SM owns arrays and dedicated spares.
RAID Management 6.2.5 Changing an Array Name You can change the name of an array. This does not affect the target ID or LUN values of the array. The EF2800 does not allow you to change an array name when a utility is running. To change an array name: 6.2.6 1. From SAM, select Manage EF2800 > Disk Array Config > Change Array Name. The Change Array Name page displays with a list of existing arrays. 2. Select the array you want. 3. Enter a new name. You can use up to 20 characters.
RAID Management CAUTION: The Trust Array feature can cause unstable operation and data loss if used improperly. This feature is intended for disaster recovery. To trust an array: 1. From SAM, select Manage EF2800 > General Config > Option Configuration. The Option Configuration page displays. 2. For Enable Trust Array, select Enabled. 3. Click Change Options. The option is only enabled until you use it. After you trust an array, the option reverts back to being disabled. 4.
RAID Management 6.2.7 Deleting an Array You can delete an array when you no longer need the array or you need the drives for another use. CAUTION: Deleting an array deletes all partitions and data contained in the array. NOTE: You cannot delete an array while any utility (Initialize, Verify, Expand, or Reconstruct) is running on the array. You must stop the utility, if allowed, or let it finish before you can delete the array. To delete an array: 1.
RAID Management 6.3 Managing Partitions The SAM software lets you manage partitions in a variety of ways. You can: • View partition status information (see page 96) • Change a partition name (see page 96) • Change a partition LUN (see page 97) • Control partition access (see page 98) • Change a partition’s read-ahead cache size (see page 103) • Delete a partition (see page 104) 6.3.1 Viewing Partition Status Information Partition status information is available from many pages in SAM.
RAID Management To change a partition name: 6.3.3 1. From SAM, select Manage EF2800 > LUN Management > Change Partition Name. The Change Partition Name page displays with a list of all existing arrays. 2. In the Select an Array to View LUN Information panel, select the array whose partition you want to rename. 3. In the Partition Menu panel, select the current partition name. 4. In the Change Name panel, enter the new name. You can use up to 20 characters.
RAID Management 6.3.4 3. In the Partition Menu panel, select the partition name. 4. In the Change LUN panel, select a new LUN. 5. Click Change Partition LUN. Controlling Partition Access The EF2800’s InfoShield capability lets you specify which hosts can access each partition. This gives you complete control of array access based on your specific needs. Figure 56 shows an example of how you can use InfoShield. Figure 56.
RAID Management You set up InfoShield by either excluding or including hosts on a list for each partition LUN. The list can include or exclude up to 64 specific hosts or all hosts for each partition LUN. For example, in Figure 56, Array A has two partitions. Partition 1 has an include list that contains only Accounting, so only the Accounting server can access partition 1.
RAID Management 6.3.4.2 Creating Nicknames for Host WWNs You can give the hosts on your SAN nicknames that you can easily recognize to make InfoShield easier to manage. For example, you can use the computer name that has already been assigned to each host. The list of known host WWNs and nicknames is called the global host list. You can determine which WWN is for which host by starting one host at a time or scanning for devices from a host, then viewing the WWN list.
RAID Management 6.3.4.3 Configuring InfoShield Once you set up host nicknames, you can easily set up your InfoShield. This is where you determine which hosts can access each partition LUN. You set up InfoShield by either excluding or including hosts on a list for each partition LUN. The list can include or exclude up to 64 specific hosts or all hosts for each partition LUN. The InfoShield information is stored as part of the array’s metadata using the WWN for each host.
RAID Management in all hosts being able to access the partition. If you have already created an include or exclude list, you can use this option to override the list. Your existing list is retained and you can display, add, or remove hosts from the list. • Include Listed Hosts: Lets you enter or select the WWNs of the specific hosts you want to be able to access the selected partition. The list of WWNs and nicknames that displays contains the last 64 hosts that started or that you gave a nickname.
RAID Management 6.3.5 Changing the Read-Ahead Cache Size You can change the read-ahead cache size for each partition. This setting controls how much data the SM reads ahead and stores in its cache memory during sequential reads. If you want to change this size, you should be prepared to monitor the system performance using the array statistics and adjust the size until you find the optimal size for your application.
RAID Management 6.3.6 2. In the Select an Array to View LUN Information panel, select the array whose partition you want to assign a new read-ahead cache size. 3. In the Partition Menu panel, select the partition name. 4. In the Partition Read Ahead Size panel, select the size you want. The current size displays in the drop-down list with ** next to it. 5. Click Set Read Ahead Cache Size.
7 Monitoring System Status You should monitor your system regularly to ensure that the EF2800 enclosure, disk drives, and arrays are working properly. The EF2800 and SAM let you monitor the status several ways: • EF2800 LEDs (see section 2.9, "Status LED Indicators" on page 38) • SAM status pages (see page 105) • Event log (see page 108) • Remote notification (see page 110) • All log information (see page 112) • Overall and cumulative statistics (see page 113) • Debug log (see page 170) 7.
Monitoring System Status Figure 57. SAM Status Pages Page Information on the page Status Summary First page you see when you log in to SAM. Displays: Status message telling you the status of the two SMs. Array overview showing each existing array. Critical arrays display a blinking, red exclamation mark through the array. Click an array icon to go to the Storage Array Status page. EF2800 hardware status overview. Click a module name to go to the Module Status page.
Monitoring System Status Figure 57. SAM Status Pages (Continued) Page Information on the page LUN Information Displays node WWN and LUN information for each array plus the management LUNs assigned to each SM. Misc Configuration Displays the status of the following EF2800 settings: audio alarm, backoff percent, utility priority, battery, cache lock, dynamic spare, disk write-back cache, SMART, internal hubs, EMP, and security.
Monitoring System Status Figure 58. SAM Status Pages from the Manage EF2800 Menu Page Information on the page Manage EF2800 > Utilities > Debug Utilities 7.2 View Debug Log Displays debug information and the messages you select in the Debug Log Configuration page. View Error Buffers Displays error buffer information from the LAN Subsystem. View CAPI command trace Displays a history of the CAPI commands sent to and received from the LAN Subsystem.
Monitoring System Status NOTE: If you are having a problem with the EF2800 or an array, check the event log before calling technical support. Event messages may let you resolve the problem without calling. You should also refer to Chapter 10, "Troubleshooting and Problem Solving" on page 141.
Monitoring System Status 7.3 Setting Up Remote Notification Remote notification lets you receive information about specific EF2800 events by email. You can select the types of events and up to four email addresses. You can view the current settings by selecting Manage EF2800 > Remote Configuration. Remote notification requires that you set up two items: • Events to be monitored • Email addresses to send events to - By category - By specific event 7.3.
Monitoring System Status To set up events:. 1. From SAM, select Manage EF2800 > Remote Configuration > Select Event Categories. The Select Event Categories page displays. 2. Select which event categories, if any, you want to trigger an e-mail message. 3. Click Change Monitored Event Categories. 4. Select Manage EF2800 > Remote Configuration > Select Specific Categories. The Select Specific Events page displays. 5. Select the specific events, if any, you want to trigger an email message.
Monitoring System Status 7.4 Saving Log Information to a File You can save EF2800 event and debug log information to a file. The file contains selected log information, including: • Event log • Diagnostic debug logs • Device status The device status information is always included. You can enter contact information for inclusion in the log information file. This helps identify the issue and contact information when these logs are being collected for diagnostic purposes.
Monitoring System Status 7.
Monitoring System Status To view the overall rate statistics: • From SAM, select Monitor EF2800 > Statistics To view the cumulative statistics: • From SAM, select Monitor EF2800 > Statistics > Cumulative Stats. 7.5.1 Resetting the All Statistics You can reset the following statistics to zero: • Read • Write • SecRd • SecWt • I/O Size NOTE: Resetting statistics here resets all statistics for the EF2800. You may want to reset the statistics if you are monitoring performance.
8 Other EF2800 Configurations SAM lets you configure settings and perform a variety of functions on the EF2800.
Other EF2800 Configurations 8.1 Configuring the LAN-related Settings You can configure several LAN-related settings for the EF2800: • Telnet settings (see page 116) • SNMP settings (see page 116) • System information (see page 117) • Passwords (see page 118) • Security options (see page 119) • IP settings 8.1.1 Configuring the Telnet Timeout You can set the Telnet timeout setting, which controls the number of idle minutes before the Telnet session times out.
Other EF2800 Configurations • Event Filter: Informational, Warning, or Error. The default setting is Warning. To set the SNMP settings: 1. In SAM, select Manage EF2800 > General Config > LAN Configuration. The LAN Configuration page displays. 2. In the SNMP Configuration panel, select the options you want. 3. Click Change LAN Configuration. 8.1.3 Configuring the System Information You can set four system information settings: • System Name: Name of the EF2800 as seen by other systems on the LAN.
Other EF2800 Configurations 8.1.4 Setting Passwords You can set passwords for the following: • Monitor User Password: These users only have access to the functions on the Monitor EF2800 menu. The default password is “monitor”. Up to three monitor-only users can be logged in at a time. You can use up to 31 characters. You can use only letters, numbers, and underscores. • Manage User Password: These users have access to all SAM functions. The default password is “manage”.
Other EF2800 Configurations 8.1.5 Configuring the Security Options You can enable or disable the following LAN-related functions: • FTP Capability: Controls access to the SMs using file transfer protocol (FTP), which permits you to upgrade the SM’s LAN Subsystem software. The default setting is enabled. • Telnet Capability: Controls access to the SMs using Telnet, which permits you to manage the SMs using your LAN. The default setting is enabled.
Other EF2800 Configurations 8.2 Changing the Date and Time You can change the EF2800’s date and time. To set the EF2800’s date and time: 1. From SAM, select Manage EF2800 > General Config > Set Date/ Time. The Set Date/Time page displays. 2. In the Set EF2800 System Date panel, select the month, day, and year. 3. In the Set EF2800 System Time panel, enter time using a 24-hour clock. The Time Zone field controls the time stamp on e-mail messages sent for the Remote Notification function. 4.
Other EF2800 Configurations manage the controller (this application uses CAPI to communicate with the controller), you must have a management LUN. If you are not using software that your company developed, and therefore are not using CAPI, select NONE as the management LUN. This allows your first array to be seen at LUN 0. • EMP LUNs: Allow access to EMPs. You can set an EMP LUN to a value of 0-63 or NONE. NONE means that the EMP cannot be accessed via a LUN.
Other EF2800 Configurations you are using software that your company developed to configure and manage the controller (this application uses CAPI to communicate with the controller), you must have a management LUN. If you are not using software that your company developed, and therefore are not using CAPI, select NONE as the management LUN. This allows your first array to be seen at LUN 0. To change the management LUNs: 1. From SAM, select Manage EF2800 > LUN Management > Change SM LUN.
Other EF2800 Configurations Alarm conditions trigger an event message that displays in the event log. Figure 60 shows the temperature and voltage thresholds for each alarm and how to resolve the problem. Figure 60.
Other EF2800 Configurations 8.6 Controlling Host Access to EF2800’s Write-back Cache Setting You can prevent host systems from using SCSI mode-select commands to change the EF2800’s write-back cache setting. Some operating systems disable write cache. If cache lock is enabled, the host cannot change the cache setting. The default setting is disabled. This option is useful in some environments where the host system disables the EF2800’s write-back cache, resulting in degraded performance.
Other EF2800 Configurations To change the battery setting: 1. From SAM, select Manage EF2800 > General Config > Option Configuration. The Option Configuration page displays. 2. Select the Battery option you want. 3. Click Change Options. 4. You must restart the EF2800 for the change to take effect. Select Shutdown/Restart from the SAM menu. 8.
Other EF2800 Configurations 8.9 Rescanning All Ports You can tell the EF2800 to scan all disk ports for new or removed disk drives. You can use this option when you install or remove disk drives. The rescan temporarily pauses all I/O processes, then resumes normal operation. If you are using an enclosure with an EMP, the EF2800 performs a rescan automatically.
Other EF2800 Configurations 2. Click Pause. 3. When you have replaced the drive, resume I/O activity by clicking Unpause. CAUTION: Do not stay in the Hot Swap Pause mode for too long; otherwise, an operating system time-out may occur (the time varies according to the operating system). For example, in Windows NT, the default limitation during I/O activity is 10 seconds. 8.11 Saving and Restoring a Configuration File You can save all of your EF2800 configuration settings to a file and restore that file.
Other EF2800 Configurations To save a configuration file: 1. From SAM, select Manage EF2800 > Utilities > Configuration Utilities > Save Config File. The Save Config File page displays. 2. Click Save Configuration File to save the current EF2800 configuration to a file on the host system or anywhere on your network. The File Download window displays. 3. Select Save this file to disk and click OK. The Save As window displays. 4. Navigate to where you want to save the file and enter the file name. 5.
Other EF2800 Configurations Gateway for both SMs on the same EF2800. After the file is restored, you must reconnect to the EF2800 using one of the new IP addresses. - Use Restore File IP Addresses: Restores the configuration file to the EF2800 that SAM is currently connected to and changes the IP addresses to those contained in the configuration file.
Other EF2800 Configurations 8.12 Viewing and Restoring Default Settings You can view and restore all of the EF2800’s default settings. 8.12.1 Viewing Default Settings You can view the EF2800’s default settings as well as the current settings. To view the default settings: • From SAM, select Manage EF2800 > Utilities > Configuration Utilities. The Show Changed Settings page displays. 8.12.
Other EF2800 Configurations 8.13 Updating Software You can update the EF2800 software from SAM using a software package file. Information regarding the latest release of software and software package files are available from your supplier. SAM automatically updates only those types of software that require updating. NOTE: You should always update the software on both Storage Manager modules.
Other EF2800 Configurations 6. If you want to force all of the software components to load, even if they have not changed, select the Force load of all files even if versions match option. 7. Click Proceed with Code Update. The update process takes about ten minutes to complete. SAM returns to the Load Software page when update is complete. 8. Connect to the other SM module and repeat the above steps. 132 DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.
9 Managing Disk Drives & Enclosures SAM lets you control a variety of functions related to devices and enclosure management processor (EMP) enclosures connected to your EF2800.
Managing Disk Drives & Enclosures 9.1 Managing Disk Drives SAM lets you control a variety of functions related to disk drives. You should also refer to your disk drive or JBOD enclosure documentation for information about related functions. 9.1.1 Displaying Disk Drive Information You can display two types of information about disk drives: • A list of all drives connected to the EF2800 • The status of all disk drives in an array 9.1.1.
Managing Disk Drives & Enclosures 9.1.2 Clearing Metadata from a Disk Drive All of the member disk drives in an array contain metadata in the first sectors. The EF2800 uses the metadata to identify array members after restarting or replacing SMs. You can clear the metadata if you have a disk drive that was previously a member of an array. Disk drives in this state display Leftover in the Display All Devices page and in the Clear Metadata page.
Managing Disk Drives & Enclosures CAUTION: We recommend that you disable write-back cache on disk drives. Some disk drives delete their write-back cache if they encounter an internal error, resulting in lost data. To change the write-back cache setting: 1. From SAM, select Manage EF2800 > General Config > Disk Configuration. The Disk Configuration page displays. 2. Select the Write-back Cache option you want. 3. Click Change Disk Option Configuration. 4.
Managing Disk Drives & Enclosures failed. On most disk drives, SMART is disabled by default by the manufacturer. To enable or disable SMART changes: 1. From SAM, select Manage EF2800 > General Config > Disk Configuration. The Disk Configuration page displays. 2. Select the SMART option you want. 3. Click Change Disk Option Configuration. 4. Select Manage EF2800 > Utilities and click Rescan to have your changes take effect. 9.1.6 Blinking a Drive LED You can blink the LED on a specific disk drive.
Managing Disk Drives & Enclosures To take down a disk drive: 1. From SAM, select Manage EF2800 > Utilities > Disk Drive Utilities > Down Disk Drive. The Down Disk Drive page displays listing all devices. 2. Select the disk drive you want to take down. 3. Click Down Selected Drive. Before you can use the disk drive again, you must clear its metadata. See section G.1.2, "Clearing Metadata from a Drive" on page 288. 9.1.
Managing Disk Drives & Enclosures 9.2 Managing Enclosures An enclosure management processor (EMP) is a device in the enclosure from which the EF2800 can inquire about the enclosure’s environmental conditions such as temperature, power supply and fan status, and the presence or absence of disk drives. The EF2800 can also tell the EMP about RAID activities such as disk drive rebuilds and failed disk drives.
Managing Disk Drives & Enclosures You may want to change the EMP LUN if it conflicts with the LUN of another device. To change the EMP LUN: 1. From SAM, select Manage EF2800 > General Config > Enclosure Management. The Enclosure Management page displays. The Set EF2800 EMP LUNs panels display the current LUN for each EMP. Each EMP has an EMP number that the EF2800 assigns sequentially whenever it starts. 2. Select the LUN you want for each EMP. 3. Click Update EMP Configuration. 9.2.
10 Troubleshooting and Problem Solving 10.1 Overview The EF2800 enclosure includes a processor and associated monitoring and control logic to enable it to diagnose problems within the enclosure’s power, cooling and drive systems. The Enclosure Services Processor is housed along with the Ops Panel in the rear of the enclosure. The sensors for power and cooling conditions are housed within the power supply/cooling modules. There is independent monitoring for each unit.
Troubleshooting and Problem Solving 10.1.1.2 Alarm Sounds On Power Up Please refer to Section 10.3. 10.1.1.3 Green “Signal Good” LED on I/O Module is Off Check that the Rx and Tx cables have not been inverted during installation. 10.1.1.4 Computer Doesn’t Recognize the EF2800 System 1. Check that the FC-AL interface cables from the EF2800 enclosure to the host computer are fitted correctly. 2. Check the Drive Select ID settings on your EF2800 enclosure and on your system host. 3.
Troubleshooting and Problem Solving 10.2 LEDs Green LEDs are always used for good or positive indication, flashing Green/Amber if non-critical conditions exist. Amber LEDs indicate there is a critical fault present within the module. 10.2.1 Ops Panel The Ops Panel displays the aggregated status of all the modules. The Ops Panel LEDs are shown in Figure 61 and defined in Figure 62. For details on how to remove and replace a module see Section 10.7.
Troubleshooting and Problem Solving Figure 62.
Troubleshooting and Problem Solving 10.2.
Troubleshooting and Problem Solving Figure 64 describes the LED status lights located on the front of the SM module. For information about determining the cause of an amber or red LED, see Appendix E, "Monitoring System Status" on page 259. . Figure 64. Storage Manager Module LED Status Descriptions LED Description Color Function .STATUS SM Status Green Solid when EF2800 is on and this SM is online. Amber Flashing when initializing. Solid if LAN Subsystem or battery has a fault. Red BATTERY.
Troubleshooting and Problem Solving 10.2.3 Power Supply/Cooling Module The Power Supply Cooling LEDs are shown in Figure 65. Under Normal conditions the LEDs should all be illuminated constant green. If a problem is detected the color of the relevant LED will change to amber. PSU Good: Green AC Input Fail: Amber Fan Fault: Amber DC Output Fail: Amber Power AC Fan DC Output Figure 65. PSU LEDs 10.3 Audible Alarm The Ops Panel also includes an audible alarm which indicates when a fault state is present.
Troubleshooting and Problem Solving 10.4 Troubleshooting The following sections describe common problems, with possible solutions, which can occur with your EF2800 system 10.4.1 System Faults Symptom Cause The ESI processor has detected an internal fault (e.g. failure of an 2. Audible alarm is internal activated. communications path) Action 1. The SYSTEM 1. Check for other amber LED turns amber on the Ops panel. LED indications on the power supply/cooling modules.
Troubleshooting and Problem Solving 10.4.2 Power Supply/Cooling Faults Symptom Cause 1. Ops panel 1. Any power fault. 1. Check Power On/Off FAULT LED turns amber. 2. A fan failure. 2. An amber LED on one or more power supply/ cooling modules. 3. Audible alarm is activated. 3. A thermal condition which could cause PSU overheating. Action Switch on rear of power supply/cooling module is turned ON. (not accessible on later models) 2.
Troubleshooting and Problem Solving 10.4.3 Thermal Control The EF2800 Enclosure uses extensive thermal monitoring and takes a number of actions to ensure component temperatures are kept low and also to minimize acoustic noise. Air flow is from front to rear of the enclosure. Symptom Cause The first stage in the thermal control process is for the fans to automatically increase in speed when a thermal threshold is reached.
Troubleshooting and Problem Solving 10.4.4 Thermal Alarm Symptom Cause Action 1. Ops panel FAULT If the internal 1. Check local ambient temperature measured in the 2. An amber LED on airflow through one or more power the enclosure supply/cooling exceeds a pre-set modules. threshold a 3. Audible alarm is thermal alarm is activated. activated. environment temperature is below the upper 40°C specification. LED turns amber. 4. Air temperature exiting PSU above 55°C. 2.
Troubleshooting and Problem Solving 10.5 Drive Carrier Module Faults Disk drive status is monitored by a green LED and an amber LED mounted on the front of each Drive Carrier Module, providing the following indications: State Green Amber No drive fitted Off Off Drive Power ON On Off Flashes Off On On Drive Activity Drive Fault Drive activity - LED may be off for a length of time during power up. 10.5.
Troubleshooting and Problem Solving 10.6 Dealing with Hardware Faults Ensure that you have obtained a replacement module of the same type before removing any faulty module. ! Warning If the enclosure is powered up and you remove any module, replace it immediately. If the enclosure is used with modules or module blanks missing for more than a few minutes, it can overheat, causing power failure and data loss. Such use will invalidate the warranty.
Troubleshooting and Problem Solving 10.7.1 Power Supply/Cooling Modules ! Warning 10.7.1.1 Do not remove covers from the power supply unit. Danger of electric shock inside. Return the PSU to your supplier for repair. Removing the Module If a power supply unit or its fan has failed, you must replace the whole power supply/cooling module. As there should always be two power supply units installed, you can continue working while replacing the faulty module.
Troubleshooting and Problem Solving 10.7.1.2 Inserting the New Module 1. Check for damage, especially to the rear connector on the new module. Make sure the power switch is turned off. CAUTION: Handle the module carefully and avoid damaging the connector pins. Do not install the module if any pins appear to be bent. 2. Disengage the latches and swing open the handle (Figure 66). 3. Slide the module into the bay (Figure 67).
Troubleshooting and Problem Solving 10.7.3 Storage Manager Module Please refer to Section 2.4 for full information on installing the Storage Manager module. NOTE: Fitting of a RAID controller to the I/O module is a factory only operation. As there should always be two SM modules installed, you can continue working while replacing the faulty module. 10.7.3.1 Removing the Module ! Warning Do not remove this module unless a replacement module is available.
Troubleshooting and Problem Solving 4. Pull and swing open the latches to cam the module out of the bay. 5. Grip the latch handles and the module out of the bay (Figure 69). Figure 69. Removing an LRC I/O Module 10.7.3.2 10.7.3.3 Inserting the Module 1. With the latches in the open position, slide the module into the bay until the latches engage automatically. 2. Cam the module home by manually closing the latches. A click should be heard as the latches fully engage. 3.
Troubleshooting and Problem Solving 10.7.4 Drive Carrier Module Please see Section 2.7, "Drive Carrier Installation" on page 27 for information on the initial installation of the plug-in modules in the EF2800 enclosure. ! Warning 10.7.4.1 Observe all conventional ESD precautions when handling EF2800 modules and components. Avoid contact with backplane components and module connectors. Removal and Replacement CAUTION: Drive spin down Damage can occur to a drive if it is removed while still spinning.
Troubleshooting and Problem Solving 10.8 Problems Accessing the EF2800 via Ethernet Port Problem: You cannot access the EF2800 using the default IP address of 10.0.0.1. Your distributor or another user may have changed the default IP address. Use the RS-232 connection to access the EF2800 and configure the IP address. Problem: SAM pages do not display properly. • Be sure that your system meets the system requirements described in Section 3.1, "SAM System Requirements" on page 44.
Troubleshooting and Problem Solving 10.9 Host Fibre Channel Problems Problem: The host system does not see the EF2800. Verify in the Monitor EF2800 > Status > FC Port Status page (or in the Disk Array Administrator, the - CFG Info screen) that the host channel FC World Wide Name is valid. Verify that the port ID is active and a valid arbitrated loop port address (AL_PA) is assigned. Verify the array LUN numbers are configured correctly and not overlapping.
Troubleshooting and Problem Solving 10.10 Array Problems Problem: Array is much smaller than it should be. The backoff percent may be set higher than 1%, which is causing the array to be much smaller than the full size of its member disks. NOTE: 1%. We strongly recommend that you leave the backoff percent at Setting the backoff percent “backs off” or reduces the capacity of the array by the given percentage.
Troubleshooting and Problem Solving To change the backoff percentage using Disk Array Administrator: A change to this setting on either SM module is automatically updated on the other SM module. 10.11 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select Backoff Percent and press . The Backoff Percent screen displays. 3. Enter the Backoff Percent you want to use and press .
Troubleshooting and Problem Solving Problem: System hangs at Loading Bridge during BFLU Loader Menu. Update the software to ensure you are using the latest version. See section 8.13, "Updating Software" on page 131. If you cannot update the software or if the updated software does not correct the problem, replace the SM. Problem: One of the POST diagnostic tests failed. Contact Technical Support. Problem: The system hangs at CT_srv starting.
Troubleshooting and Problem Solving NOTE: Some terminal emulators do not immediately change to the new baud rate settings, and you have to exit and restart the emulator to use the new settings. Problem: Nothing is displayed on the terminal emulator screen. The probable cause of this problem is a bad RS-232 cable connection or swapped transmit/receive lines. If the cable is properly connected on both ends, try a null modem adapter that will reverse the RS-232 transmit and receive signals.
Troubleshooting and Problem Solving 10.14 Warning and Error Events There are a number of conditions that trigger warning or error events, activate the alarm, and may affect the state of the Status and Fault LEDs. The alarm or buzzer sounds mainly when SAM or the Disk Array Administrator displays a warning or error event. The alarm will silence when you press the Mute button on the EF2800, mute the alarm in SAM (refer to Section 8.
Troubleshooting and Problem Solving Figure 70. Warning Events (Continued) Event BOOT ONLINE FAIL Definition Recommended Action During startup, the system attempted to put the specified module online. This operation failed. The event gives a reason why the Put Online failed. Examine this reason and take the appropriate action. If the reason is DIAGNOSTIC FAIL, a hardware problem was found with the module. In this case, try replacing the module with a different one.
Troubleshooting and Problem Solving Figure 70. Warning Events (Continued) Event Definition PREV WWN The host Fibre Channel World UNKNOWN Wide Names (node and port) previously presented by this Storage Manager module in this system are unknown. This event has two possible causes: One or both SM modules in a have been replaced or moved while the system was powered off. One or both SM modules have had their flash configuration cleared (this is where the previously used WWNs are stored).
Troubleshooting and Problem Solving Figure 70. Warning Events (Continued) Event Definition Recommended Action The system attempted to Put Online a newly inserted module, however the Put Online request failed. The event gives a reason why the Put Online failed. Examine this reason and take the appropriate action. If the reason is DIAGNOSTIC FAIL, a hardware problem was found with the module. In this case, try replacing the module with a different one.
Troubleshooting and Problem Solving 10.14.2 Errors Error events let you know that something related to the EF2800, module, or disk drives has failed and requires immediate attention. Figure 71 defines each error event and recommends the action you should take. Figure 71. Error events Event Definition Recommended Action ARRAY CRITICAL One drive in the specified array failed and the array is running in degraded mode (not fault tolerant).
Troubleshooting and Problem Solving 10.15 Setting Up and Viewing the Debug Log You can set up additional logging when instructed by DataDirect Network’s technical support personnel. Summary of Debug Log Capabilities • Single controller debug information: available from the Disk Array Administrator via the serial port on each controller module.
Troubleshooting and Problem Solving 10.15.1.1 SAM: Manage/Utilities/Debug Utilities/Save Debug Logs/Save Log Files 1. You may optionally enter contact information, which will be included in the log information file. By doing so, your contact information and comments will help create a unique document that may be used to identify the issue and origin when these logs are being collected for diagnostic purposes. 2.
Troubleshooting and Problem Solving 10.15.2 3. Select Dump Debug Info from the utilities menu of Disk Array Administrator. 4. Allow the data dump to complete. 5. Stop the “data capture” session on your terminal emulator program. 6. Repeat the above steps for the second controller. Configuring Debug Logs For most log collection scenarios, you should utilize the factoryconfigured debug log setup on the RAID system.
Troubleshooting and Problem Solving 10.15.2.2 2. Select the viewing options you want. 3. Click Load/Reload Debug Log. Using Disk Array Administrator to Set Up Debug Log You can view a debug log by pressing -. Pressing - toggles you through the event log, debug log, hardware information, and configuration information screens. To set up debug logging: 10.16 1. From the System Menu, select Utilities Menu and press . The Utilities Menu displays. 1.
Troubleshooting and Problem Solving 10.18.1 Disk Errors If a disk detects an error, it reports the error, which is recorded in the event log. Figure 72 lists some of the most common SCSI sense key descriptions (in hexadecimal). Figure 73 lists the descriptions for the most common sense codes (ASC) and sense code qualifiers (ASCQ), all in hexadecimal. Refer to the SCSI Primary Commands - 2 (SPC-2) Specification for a complete list of ASC and ASCQ descriptions. Figure 72.
Troubleshooting and Problem Solving Figure 73. ?Common ASC and ASCQ descriptions 10.18.
Troubleshooting and Problem Solving Figure 74. Disk channel error codes 176 Error Code Description Abort LkDn I/O request was aborted because of third-party loop initialization procedure (LIP). CRC Error CRC error on data was received from a target. Dev Busy Target reported busy status. Dn/Ov Run Data overrun or underrun has been detected. IOTimeout EF2800 aborted an I/O request to this target because it timed out. Link Down Link down while communication in progress.
Troubleshooting and Problem Solving 10.18.3 Voltage and Temperature Errors and Warnings Most voltage and temperature errors and warnings relate to the power supply/cooling modules. Check the following to resolve these errors or warnings: 1. Check that all of the fans are working by making sure all of the EF2800’s LEDs are green or using the SAM status pages. 2. Make sure that all the EF2800 modules are properly seated in their slots and that their handles are locked. 3.
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A Enclosure Specifications A.1 Technical Specifications A.1.1 Dimensions A.1.2 A.1.3 Height: 5.3" (134mm) Width across body of enclosure: 17.6" (446mm) Depth: 20.2" (511mm) Weight Fully Loaded: Rack mount: 81.0 lbs (37kg) Empty Enclosure (Rack): 19.8 lbs (9 kg) PSU/Cooling Module: 8.8 lbs (4 kg) LRC I/O Module: 3.11lbs (1.5kg) AC Power (450W PSU) Voltage, auto-ranging: 100 - 120 / 200 - 240 VAC Rated Frequency: 50-60 Hz Inrush Current: 50A @ 260VAC Power Factor: >0.
Enclosure Specifications A.1.4 A.1.5 PSU Safety and EMC Compliance Safety Compliance: UL 60950, IEC 60950, EN 60950 EMC Compliance: CFR47 Part 15B Class A, EN55022, EN55024 Power Cords (minimum requirements) A.1.
Enclosure Specifications Altitude, Operational: 0 to 10,000 feet (0 to 3,047 m) Altitude, Non-Operational: -1,000 to 40,000 feet (-305 to 12,192m) Shock, Operational: Vertical axis 5g peak 1/2 sine, 10ms Shock, Non-Operational: 30g 10ms 1/2 sine Vibration, Operational: 0.21grms 5-500 Hz Random Vibration, Non-Operational: 1.04grms 2-200 Hz Random Vibration, Relocation: 0.3g 2-200 Hz sine Acoustics: Less than 6.
Enclosure Specifications A.1.8 Controller I/O Module Specification Module: • Speed: 2Gb • Creates connections to 2 × 8 drive mode dual loop structures • 2 External expansion ports, SFP connectors • 2 Host SFP ports • 1 Ethernet port Mounting: Rear Single Bays 3 and/or 4 Connectors: • 2 × SFP module LC optical, max. cable length 500m; or 2 × Copper HSSDC-2 connector, max. cable length 6m • 1 × RJ45 Ethernet port • 1 × RS232, 6 pin Mini-DIN (factory-use only) Power Dissipation: 5A @ 3.3V, 7.
Enclosure Specifications A.1.9 Drive Carrier Module Specification NOTE: Operating the enclosure with non-approved drives may invalidate the warranty. Module Dimensions: Height 1.15" (29.10mm) Width 4.19" (106.55mm) Depth 8.15" (207.0mm) Weight: 1.94 lbs (0.88kg) for 1.0" 36GB drive Operating Temperature: 5°C to 40°C (when installed in an enclosure with dual Power Supply/Cooling modules) Power Dissipation: A.1.10 A.1.11 18.
Enclosure Specifications A.
B Array Basics EF2800 RAID controllers let you set up and manage disk arrays. A disk array (array) is a group of disks that appears to the system as a single virtual disk. This is accomplished through software resident in the RAID controller. RAID (Redundant Array of Independent Disks) refers to disk arrays in which part of the array storage capacity may be used to store redundant information. The redundant information lets you restore user data if a disk in the array fails.
Array Basics Figure 75. RAID Levels and Example Applications RAID Level B.1 Application RAID 1, 10 Workgroup servers RAID 3 or 4 Video editing and production RAID 5 Network operating system, databases, high availability applications, workgroup servers RAID 50 Very large databases, Web server, video on demand Array Types Array types are defined by their RAID level, a number from 0 through 5 (a higher RAID level does not necessarily indicate a higher level of performance or fault tolerance).
Array Basics B.1.2 RAID 1, RAID 10 (Mirrored Disks) In RAID 1 and RAID 10 arrays (commonly called mirrored arrays) disks are paired, with both disks in a pair containing the same data. When data is written to a mirrored array, it is written twice—once to each disk in the pair. A RAID 1 array has only one set of paired disks. A RAID 10 array has multiple pairs, across which data is striped.
Array Basics B.1.4 RAID 4 RAID 4 is similar to RAID 3 in that the redundant information is achieved in the form of parity data. The user data is distributed across all but one of the disks. The EF2800 uses a single, dedicated parity drive for data protection. The main difference is that RAID 3 usually synchronizes writes to its disks, while RAID 4 can send data to its disk independently.
Array Basics The read performance of a RAID 50 array is excellent—better than a RAID 5 array—along with better data protection. Write performance is lower than that of a RAID 0 array, because write operations involve calculating and writing new parity data as well as writing the new user data. B.1.7 Volume Sets A volume set provides the ability to create a host-accessible LUN that maps to a single disk in the array, similar to JBOD.
Array Basics Figure 76. RAID Levels Comparison 190 RAID Level Min.
Array Basics Figure 76. RAID Levels Comparison B.3 RAID Level Min.
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C Accessing Disk Array Administrator Software The remaining appendices of the manual describe how to manage your EF2800 using the menu-based Disk Array Administrator. You can display and change a variety of settings using the Disk Array Administrator software.
Accessing Disk Array Administrator Software You must perform some configuration functions from the SM where you want the change to take place: • Updating firmware • Configuring LAN settings • Creating and managing arrays, partitions, and dedicated spares You can perform other configuration functions from either SM and have the same changes made automatically on the other SM: • Managing pool spares • Host channels configuration • Disk channels configuration • EF2800 settings: - Alarm mute - Lock cache • Dis
Accessing Disk Array Administrator Software Set the communications parameters for the terminal program as follows: Setting Value Baud Rate 115,200 Data Bits 8 Stop Bits 1 Parity None Flow Control Software (XON/XOFF) or None Connector COM1 (typically) To access the Disk Array Administrator software using the RS-232 serial port: 1. From the computer connected to the EF2800, start your terminal emulation software.
Accessing Disk Array Administrator Software If any events have occurred, each event displays. Informational events scroll by automatically. Warning events (yellow text on a black background) and error events (white text on a red background) display until you press or . Once all the events display, the initial screen displays. The initial screen alternates between displaying the date, time, and temperature and the model number of your EF2800. You can bypass all events by pressing .
Accessing Disk Array Administrator Software C.2 Via the Ethernet Port You can access the Disk Array Administrator software using the Ethernet port and Telnet. Windows users may want to obtain a terminal emulator program such as HyperTerminal Private Edition from Hilgraeve that supports both Telnet protocol and serial port protocol. In addition, such programs support the color display from the Disk Array Administrator. You can configure a variety of settings for the Ethernet connection.
Accessing Disk Array Administrator Software To access the Disk Array Administrator software using the Ethernet port and the Telnet utility: 4. Set up the IP address and subnet mask as described in section C.2.1, "Set Up for First Time Use" on page 197. 5. At the DOS or UNIX prompt, type telnet and press . The exact steps for your Telnet program may be different. The remaining steps work for HyperTerminal Private Edition. 6. Using the Terminal menu, select Preferences. 7.
Accessing Disk Array Administrator Software black background) and error events (white text on a red background) display until you press or . Once all the events display, the initial screen displays. The initial screen alternates between displaying the date, time, and temperature and the model number of your EF2800. Figure 80. Disk Array Administrator Initial Screen You can bypass all events by pressing .
Accessing Disk Array Administrator Software C.3 Navigating the Disk Array Administrator Software You can navigate the Disk Array Administrator software using your keyboard. Figure 82 describes the primary navigation and selection methods. Figure 82. Disk Array Administrator Navigation To Do this Select a menu item Press the ↑ or ↓ and press ; or Press the letter that is highlighted in a menu item (hot key).
Accessing Disk Array Administrator Software Figure 83. Changing Screen Displays (Continued) Select Ctrl-B Toggles between black and white and color Ctrl-E Toggles between the event log, hardware information, and configuration information screens Ctrl-H Toggles between the Help screen and list of shortcut keys Ctrl-R Refreshes screen Ctrl-Z, Esc, or ← C.3.
Accessing Disk Array Administrator Software Array Menu Array Status Drive Status Abort Initialization Verify Function Expand Function Add Spare Delete Spare Change Array Name Trust Array Switch Array Owner Partition Menu Add a Partition Delete a Partition Verify Function Start Verify View Verify Status Abort Verify Expand Function Start Expand View Expand Status Add an Array System Menu Array Menu Add an Array Delete an Array Pool Spare Array Display Drives All Partition Menu Configuration Menu Utiliti
Accessing Disk Array Administrator Software Set Date/Time Set Time Set Date Host Configuration Topology Link Speed Target ID CAPI LUN Channel Configuration System Menu Array Menu Add an Array Delete an Array Pool Spare Array Display Drives All Partition Menu Configuration Menu Utilities Menu Event Log Menu Other Controller Menu Shutdown Menu Configuration Menu Set Date/Time Host Configuration Channel Configuration EMP Configuration Disk Configuration General Infoshield Backoff Percent Utility Priority A
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D Creating and Managing Arrays & Partitions Using the Disk Array Administrator, you can create and manage arrays and partitions. You can perform the following array-related functions: • Create arrays (see page 205) • Manage arrays (see page 218) • Manage partitions (see page 235) D.1 Creating Arrays You can create an array anytime. You can create arrays from either SM A or SM B. Arrays you create from one SM are not visible through the RS-232 or Ethernet port of the other SM.
Creating and Managing Arrays & Partitions Figure 86. Drive requirements by RAID level RAID level Min. # of Drives Max. # of drives RAID 3 3 16 RAID 4 3 16 RAID 5 3 16 RAID 50 6 32 NOTE: Before you create more than one array, you must be sure that your host operating system supports multiple logical unit numbers (LUNs). Most operating systems do, or have an option you can enable to support multiple LUNs.
Creating and Managing Arrays & Partitions Figure 87. Enter Array Name Screen 2. Enter a name for the array and press . You can use up to 20 characters. You can include any characters in the name, including spaces. If you do not want to name the array, you can just press . You can add or change the name later. 3. The system asks if you want to create one partition now for the entire array. Select Yes to create a single-partition array and press . The LUN screen displays (Figure 88).
Creating and Managing Arrays & Partitions NOTE: Most UNIX, Linux, and Macintosh operating systems require that the CAPI LUN, which is the LUN assigned to each SM, be set to a higher value than all array LUNs. Before creating your first array, change the CAPI LUN to a higher value. If you are using a custom software application to configure and manage the controller (this application uses CAPI to communicate with the EF2800), you must have a CAPI LUN.
Creating and Managing Arrays & Partitions array and drive combinations. Select the configuration you want, press , and skip the next step. If you selected any array type other than RAID 50, the Number of Drives screen displays (Figure 90). Figure 90. Select Number of Drives for Array 6. Enter the number of drives (excluding spares) you want for the array and press . The Select Drives screen displays (Figure 91). Figure 91.
Creating and Managing Arrays & Partitions 7. Select the drives you want to use for the array and press . Use the ↑ or ↓ key to scroll through the list and press to select it. Each selected drive turns gray in the drive list. After you selected the correct number of drives, the system automatically goes to the next screen. You may want to select drives from different disk channels (I/O modules), which keeps the array online even if one channel becomes unavailable.
Creating and Managing Arrays & Partitions Figure 92. Select Chunk Size for Array 10. If the Chunk Size screen displays, select the chunk size and press . The chunk size is the amount of contiguous data that is written to an array member before moving to the next member of the array. To determine the appropriate chunk size, refer to your operating system documentation. For example, the default chunk size for Windows NT and many other operating systems is 64KB.
Creating and Managing Arrays & Partitions depending on the array type (volume, RAID 0, and RAID 1 are the fastest), array size, drive speed, and other processes running on the EF2800. You can press to return to the Disk Array Administrator menus and perform other functions. To check the progress of the array initialization, select Array Menu from the System Menu. The status of the initialization displays in the list of arrays.
Creating and Managing Arrays & Partitions Figure 93. Enter Array Name Screen 2. Enter a name for the array and press . You can use up to 20 characters. You can include any characters in the name, including spaces. If you do not want to name the array, you can just press . You can add or change the name later. 3. The system asks if you want to create one partition now for the entire array. Select No to create a multiple-partition array and press .
Creating and Managing Arrays & Partitions NOTE: A RAID 10 array is created when there are more than two drives in a mirrored array. See Appendix B, "Array Basics" on page 185 for more information. If you selected RAID 50 as the array type, the Select RAID 50 Array Size screen displays (not shown) with all possible configurations for the array and drive combinations. Select the configuration you want, press , and skip the next step.
Creating and Managing Arrays & Partitions spare, on either SM. The screen includes information for each drive: Loop ID for each channel (------ indicates a single ported drive), Size, Vendor, Model or serial number or node and WWN (press to toggle the display), Rev (firmware revision), Usage, and Usage. 7. Select the drives you want to use for the array and press . Use the ↑ or ↓ key to scroll through the list and press to select it. Each selected drive turns gray in the drive list.
Creating and Managing Arrays & Partitions To toggle the display between the drive model number, serial number, and the node and WWN, press . If the array you are creating is a RAID 3, RAID 4, RAID 5, RAID 10, or RAID 50, the Chunk Size screen displays (Figure 97). Figure 97. Select Chunk Size for Array 10. If the Chunk Size screen displays, select the chunk size and press .
Creating and Managing Arrays & Partitions 12. The system prompts you to confirm array creation. Select Yes and press . A message notifies you that the array is being created and shows the progress of the initialization process. The array initialization process takes from several minutes to more than an hour depending on the array type (volume, RAID 0, and RAID 1 are the fastest), array size, drive speed, and other processes running on the EF2800.
Creating and Managing Arrays & Partitions D.2 Managing Arrays The Disk Array Administrator software lets you manage your arrays in a variety of ways.
Creating and Managing Arrays & Partitions • Number of spare drives: Number of spare drives dedicated to this array. • Size: Size of the entire array (expressed in MB or GB for arrays larger than 10 GB). • Chunk size: Array’s chunk size. • Date created: Date the array was created. • Utility: Utility running (None, Verify, Reconstruct, Expand, or Initialize). • Number of partitions: Number of partitions created on the array. • Free partition total: Amount of free space (no partition) on the array.
Creating and Managing Arrays & Partitions 3. Select Array Status and press . The status screen appears, showing the status of the array you selected (Figure 100). Figure 100. Array Status Screen 4. D.2.1.2 Press to return to the Array Menu. Viewing Drive Status You can view the status of the drives in an array, including the following information: • Drive number: The drive’s sequential position in the EF2800’s drive list. • Drive status: Whether the drive is up or down.
Creating and Managing Arrays & Partitions Figure 101. Select Array Screen 2. Select the array you want and press . The array menu displays (Figure 102). Figure 102. Array Menu 3. Select Drive Status and press . The drive status screen displays showing the drives that are members of the array and that are assigned as dedicated spares (Figure 103). Figure 103. Drive Status Screen Use the ↑ or ↓ key to scroll through the drives. These are the drives that are currently members of the array.
Creating and Managing Arrays & Partitions D.2.2 Stopping the Array Initialization Process If you find that you need to change the disks or some other array configuration, you can stop the array initialization process. Caution ! If you stop the initialization process, the array goes offline and its data is not available to users. You must delete the array before you can use the drives in another array. To stop the array initialization process: D.2.3 1.
Creating and Managing Arrays & Partitions 3. Select Add a Partition and press . The Select Free Partition screen displays with a list of free partitions (Figure 104). A free partition is the free space that has not yet been partitioned or space that had a partition that was deleted. Figure 104. Select Free Partition Screen 4. Select the free partition you want to use. The Partition Size screen displays (Figure 105). Figure 105. Enter Partition Size Screen 5.
Creating and Managing Arrays & Partitions Figure 106. Enter Partition Name Screen 6. Enter a name for the partition and press . You can use up to 20 characters. You can include any characters in the name, including spaces. If you do not want to name the partition, you can just press . You can add or change the name later. The LUN screen displays (Figure 107). Figure 107. Select LUN for Partition 7. Select the LUN for the partition and press .
Creating and Managing Arrays & Partitions using a custom application, and therefore are not using CAPI, select NONE as the CAPI LUN. This allows your first array to be seen at LUN 0. The system warns you about the LUN for UNIX and Macintosh, as above, the first time you create a partition. Press Enter and the system asks if you want to be warned again. Select No to avoid receiving this warning again, otherwise select Yes to be warned the next time you create a partition.
Creating and Managing Arrays & Partitions Figure 108. Verify LUN Screen 4. Select Start Verify and press . Verification begins and the percentage of verification completed displays (Figure 109). You can continue to use the array during verification. Figure 109. Verify Progress Screen To return to the verification menu, press . To check the progress of the array verification, you can use the verification status described below or select Array Menu from the System Menu.
Creating and Managing Arrays & Partitions D.2.4.2 4. Select View Verify Status and press . The verify menu displays. 5. Press to return to the Verify menu. Stopping the Verification You can stop the verification process. Normally, you want to let the verification finish, although stopping it does not cause any damage to your data. You may want to stop the verification if you want to improve performance of the EF2800 for another application. To stop the verification process: D.2.5 1.
Creating and Managing Arrays & Partitions D.2.6 Expanding Array Capacity You can expand array capacity without stopping I/O activity, so you can continue using the array while the expansion process runs. You can only expand one array at a time. Notes: • Expanding an array here does not change the size of the host operating system partitions that reside on the array, because the RAID controller is working at the block level not the file system level of the operating system.
Creating and Managing Arrays & Partitions If you are expanding a multiple-partition array, you add free space at the end of the array. For more information about partitions, see section D.3.1, "Understanding Partitions" on page 235. NOTE: Once you start expanding array capacity, you cannot stop it. The expand function may take an hour or more to complete, depending on the array type, array size, drive speed, and other processes running on the EF2800. To expand an array: 1.
Creating and Managing Arrays & Partitions Figure 112. Select Drives for Expansion 6. Select the drives you want to add from the list of available drives and press . Only available drives, that is, drives that are not members of an array and are not assigned as dedicated or pool spares, are displayed. Use the ↑ or ↓ key to scroll through the list and press to select it. Each selected drive turns gray in the drive list.
Creating and Managing Arrays & Partitions D.2.7 3. Select Expand Function and press The expand menu displays. 4. Select View Expand Status and press The Expand Status screen displays. 5. Press to return to the expand menu. Changing an Array Name You can change the name of an array. This does not affect the target ID or LUN values of the array. The EF2800 does not allow you to change an array name when a utility is running. To change an array name: D.2.8 1.
Creating and Managing Arrays & Partitions NOTE: When you change the ownership of an array, the LUNs assigned to the array’s partitions become invalid. After changing ownership, you must assign a new LUN to each array partition. To change array ownership: D.2.9 1. From the System Menu, select Array Menu and press . The Select Array screen displays with a list of existing arrays. 2. Select the array you want and press . The array menu displays. 3.
Creating and Managing Arrays & Partitions Caution ! The Trust Array feature can cause unstable operation and data loss if used improperly. This feature is intended for disaster recovery. To trust an array: 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select Option Configuration and press . The Option Configuration Menu displays. 3. Select Enable Trust Array and press The Enable Trust Array screen displays. 4.
Creating and Managing Arrays & Partitions D.2.10 Deleting an Array You can delete an array when you no longer need the array or you need the drives for another use. Caution ! the array. Deleting an array deletes all partitions and data contained in NOTE: You cannot delete an array while any utility (Initialize, Verify, Expand, or Reconstruct) is running on the array. You must stop the utility, if allowed, or let it finish before you can delete the array. To delete an array: 1.
Creating and Managing Arrays & Partitions D.3 Managing Partitions The Disk Array Administrator software lets you manage partitions in a variety of ways. You can: • View partition status information (see page 218) • Add a partition (see page 222) • Expand a partition (see page 243) • Change a partition name (see page 244) • Change a partition LUN (see page 245) • Change a partition’s read-ahead setting (see page 247) • Control partition access (see page 250) • Delete a partition (see page 257) D.3.
Creating and Managing Arrays & Partitions When you first create an array set up for multiple partitions, all of the space on the array is designated as free space (Figure 114). Free Space Figure 114. Array set up for multiple partitions before creating partitions When you create a partition, you set how large you want the partition to be in MB (Figure 115). Free Space Partition 1 Figure 115.
Creating and Managing Arrays & Partitions When you expand an array, you add free space at the end of the array (Figure 117). For more information about expanding an array, see section D.2.6 page 228. Partition 1 Partition 2 Partition 3 Partition 4 Partition 5 Free Space Figure 117. Array with five partitions after expanding the array After expanding an array, you can either add a partition or expand the last partition to use the new free space.
Creating and Managing Arrays & Partitions • Write-back caching: Status of the write-back cache (enabled or disabled) for this array. • InfoShield Type: Type of InfoShield set up on the partition. See section D.3.8 on page 250. To view the status of a partition: 1. Bring up the Partition menu. From the Array menu: - From the System Menu, select Array Menu and press . The Select Array screen displays with a list of existing arrays. - Select the array you want and press .
Creating and Managing Arrays & Partitions Figure 119. Partition Status Screen 3. D.3.2.2 Press to return to the Partition menu. Viewing Partition Statistics You can view the current partition statistics.
Creating and Managing Arrays & Partitions - Select Partition Menu and press . The Select Partition screen displays with a list of existing partitions for the current array. - Select the partition you want and press . The Partition menu displays (Figure 120). From the All Partition Menu: - From the System Menu, select All Partitions Menu and press . The Select Partition or Free Area screen displays with a list of existing partitions and free space.
Creating and Managing Arrays & Partitions Figure 122. Partition Statistics Screen 4. D.3.2.3 Press to return to the statistics menu. Resetting Partition Statistics You can reset the following partition statistics to zero: • Read • Write • SecRd • SecWt • I/O Size NOTE: Resetting statistics here also resets the statistics for this partition that are included in the aggregate statistics. See section E.7, "Displaying Overall Statistics" on page 272.
Creating and Managing Arrays & Partitions - From the System Menu, select Array Menu and press . The Select Array screen displays with a list of existing arrays. - Select the array you want and press . The array menu displays. - Select Partition Menu and press . The Select Partition screen displays with a list of existing partitions for the current array. - Select the partition you want and press . The Partition menu displays (Figure 123).
Creating and Managing Arrays & Partitions 3. Select Reset Statistics and press . 4. The system confirms that you want to make the change. Select Yes and press . The system confirms that the statistics have been cleared and returns to the statistics menu. D.3.3 Expanding a Partition You can expand an existing partition, with some limitations. You can only expand a partition into contiguous, following, free space. For more information about partitions, see section D.3.1 on page 235.
Creating and Managing Arrays & Partitions Figure 125. Partition Menu D.3.4 2. Select Expand Partition and press . The Expand Partition screen displays. 3. Enter the size you want to make the partition and press . You can only expand a partition into contiguous free space that follows the partition. For more information, see section D.3.1 on page 235. 4. The system prompts you to confirm changes. Select Yes and press .
Creating and Managing Arrays & Partitions - Select the partition you want and press . The Partition menu displays (Figure 126). From the All Partition Menu: - From the System Menu, select All Partitions Menu and press . The Select Partition or Free Area screen displays with a list of existing partitions and free space. - Select the partition you want and press . The partition menu displays (Figure 126). Figure 126. Partition Menu D.3.5 2.
Creating and Managing Arrays & Partitions For more information about LUNs and your EF2800, see section H.4, "Understanding LUNs and Viewing LUN Information" on page 305. To change a partition LUN: 1. Bring up the Partition menu. From the Array Menu: - From the System Menu, select Array Menu and press . The Select Array screen displays with a list of existing arrays. - Select the array you want and press . The array menu displays. - Select Partition Menu and press .
Creating and Managing Arrays & Partitions D.3.6 Changing the Read-Ahead Cache Size You can change the read-ahead cache setting for each partition. This setting controls how much data the EF2800 reads ahead and stores in its cache memory during sequential reads. If you want to change this size, you should be prepared to monitor the system performance using the array statistics and adjust the size until you find the optimal size for your application.
Creating and Managing Arrays & Partitions - Select the array you want and press . The array menu displays. - Select Partition Menu and press . The Select Partition screen displays with a list of existing partitions for the current array. - Select the partition you want and press . The Partition menu displays (Figure 128). From the All Partition Menu: - From the System Menu, select All Partitions Menu and press .
Creating and Managing Arrays & Partitions D.3.7 Enabling or Disabling Write-back Cache You can enable or disable the write-back cache for a partition. By default, partition write- back cache is enabled. For most applications, this is the best setting. NOTE: This feature is intended for advanced users only. You may hinder your system’s performance if used incorrectly.
Creating and Managing Arrays & Partitions From the All Partition Menu: - From the System Menu, select All Partitions Menu and press . The Select Partition or Free Area screen displays with a list of existing partitions and free space. - Select the partition you want and press . The partition menu displays (Figure 130). Figure 130. Partition Menu D.3.8 2. Select Change Cache Params and press . Change Cache Params screen displays. 3. Select Write-back Cache and press .
Creating and Managing Arrays & Partitions Figure 131 shows an example of how you can use InfoShield. Array A has two partitions. Partition 1 has an include list that contains only Accounting, so only the Accounting server can access partition 1. Array B, partition 3 has an exclude list that contains only the Web server, so all hosts except the Web server can access the partition. Array C uses the default setting, Include All Hosts, which permits all hosts to access the array. Figure 131.
Creating and Managing Arrays & Partitions you can use the computer name that has already been assigned to each host, to make InfoShield easier to manage. To view known WWNs: 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays (Figure 132). Figure 132. Configuration Menu 2. Select General InfoShield and press . The General InfoShield screen displays. 3. Select Display Host List and press .
Creating and Managing Arrays & Partitions D.3.8.2 Creating Nicknames for Host WWNs You can give the hosts on your SAN nicknames that you can easily recognize to make InfoShield easier to manage. For example, you can use the computer name that has already been assigned to each host. You can determine which WWN is for which host by starting one host at a time or scanning for devices from a host, and then viewing the WWN list. The host that scanned for devices most recently is first on the list.
Creating and Managing Arrays & Partitions D.3.8.3 Configuring InfoShield Once you set up host nicknames, you can easily set up your InfoShield. This is where you determine which hosts can access each partition LUN. You set up InfoShield by either excluding or including hosts on a list for each partition LUN. The list can include or exclude up to 16 specific hosts or all hosts for each partition LUN. The InfoShield information is stored as part of the array’s metadata using the WWN for each host.
Creating and Managing Arrays & Partitions Figure 135. Partition Menu 2. Select InfoShield and press . The InfoShield menu displays and shows the current InfoShield type at the top (Figure 136). The default setting for each partition LUN is Include All Hosts. This results in all hosts being able to access all partitions. You can change the list type using the Change InfoShield Type option. Figure 136. InfoShield Menu 3. Select the option you want and press .
Creating and Managing Arrays & Partitions - Remove Host from List: Displays the Remove Host from List screen, which contains a list of the hosts currently on the include or exclude list for the selected partition. Select the WWN of the host you want to remove from the list and press . - Change InfoShield Type: Displays the Change InfoShield Type screen where you can change the InfoShield type to one of four options described below.
Creating and Managing Arrays & Partitions D.3.8.4 Changing All Partitions to Include All Hosts You can change all partitions to include all hosts from the General InfoShield menu. This lets you quickly change the InfoShield setting for all partitions at once to permit all hosts to see all partitions, overriding the existing setting for each partition. However, the EF2800 retains all existing include and exclude lists.
Creating and Managing Arrays & Partitions To delete a partition: 1. Bring up the Partition menu. From the Array Menu: - From the System Menu, select Array Menu and press . The Select Array screen displays with a list of existing arrays. - Select the array you want and press . The array menu displays. - Select Partition Menu and press . The Select Partition screen displays with a list of existing partitions for the current array. - Select the partition you want and press .
E Monitoring System Status E.1 Introduction Using the Disk Array Administrator, you can monitor your system. You should monitor your system regularly to ensure that the EF2800, disks, and arrays are working properly.
Monitoring System Status Invalid Address LED Power On LED Enclosure ID Switch Configuration Switches Alarm Mute Switch System Fault LED 1 2 3 4 5 6 7 8 9 10 11 12 PSU/Cooling/Temperature Fault LED 2Gb Link Speed LED Hub Mode LED (not used) ON OFF Figure 138. Ops Panel E.2 Displaying the Event Log The SM’s event log contains important information about the status of the EF2800, disks, and arrays. You should check it regularly for each SM to monitor the status of your system.
Monitoring System Status • Temperature failure (this leads to a shutdown which is also logged) • Voltage warning • Voltage failure (this leads to a shutdown which is also logged) The event log stores the most recent 400 events. Events have a time stamp next to them with one-second granularity. NOTE: If you are having a problem with the EF2800 or an array, check the event log before calling technical support. Event messages may let you resolve the problem without calling.
Monitoring System Status To view one event at a time: 1. From the System Menu, select Event Log Menu and press The Event Log Menu displays (Figure 139). Figure 139. Event Log Menu 2. Select View Event Log and press . The event log screen displays the last event that occurred (Figure 140). Figure 140. Event Log Screen 262 3. Press ↑ to see the previous event. You can continue to view earlier events by pressing ↑. 4. Press to return to the Event Log Menu.
Monitoring System Status E.2.3 Viewing a Whole Screen of Events You can also view a SM’s events from the log file a whole screen at a time. This lets you quickly review all recent events. The events display in chronological order, that is, the most recent event is last. When you view a whole screen of events, some parameters may be truncated. If an event displays several parameters, you can see all of them when you view the log one event at a time. To view a whole screen of events: 1.
Monitoring System Status E.2.4 Capturing the Event Log You can also capture a SM’s entire event log, which saves it to a file on your hard drive. This is useful if you want to print the log or attach it to an e-mail message. The steps below use HyperTerminal as the terminal emulator software. If you use a different terminal emulator, your procedure may be different. To capture the event log file: 264 1.
Monitoring System Status E.3 Displaying Module Status Information You can display status information about each of the modules in your EF2800. • LRC I/O modules • Power Supply/Cooling modules (two) To display module status information: 1. From the System Menu, select Other Controller Menu and press . The Other Controller Menu screen displays (Figure 142). Figure 142. Other Controller Menu 2. Select the operation you want to perform. 3. Press to return to the manage module menu.
Monitoring System Status E.4 Displaying Hardware and Configuration Information You can display the EF2800’s hardware and configuration information. This is where you can see what version of the firmware you have. Technical support personnel may request this information. You can display the hardware and configuration information two ways: • Hardware information only • Hardware and configuration information Figure 143 lists the configuration information that is available. Figure 143.
Monitoring System Status Figure 143.
Monitoring System Status Figure 143. Configuration Information (Continued)(per SM) Group Field What displays Field What displays DISK WBCache ENABLED, DISABLED, or SMART NO MODIFY as set in Disk Array Administrator software. ENABLED, DISABLED, or NO MODIFY as set in Disk Array Administrator software. CAPI Version Version of the Configuration Application Programming Interface. FC LIB Version Version of the FC software.
Monitoring System Status Figure 145. Hardware Information Screen 3. Press to return to the Utilities Menu. To display hardware and configuration information: 1. From anywhere in the Disk Array Administrator software, press <->E until the HW Info screen displays. The HW Info screen displays. Press to page up or to page down in the screen or use the other keys as listed at the bottom of the screen to navigate within the HW Info screen (Figure 146). Figure 146.
Monitoring System Status Figure 147. CFG Information Screen 3. E.5 Press - to display the next screen of configuration information or to return to where you started from. Capturing Event Log, Hardware, and Configuration Information You can capture and save the following information to a file on your hard drive: • Entire event log • All hardware information • All configuration information • All debug information that is turned on.
Monitoring System Status E.6 2. From the Transfer menu in HyperTerminal, select Capture Text. The Capture Text window displays. 3. Enter the path and file name you want to use to store the log file contents. Save the file with a.txt file extension. 4. Click Start. 5. Select Dump Debug Info and press . 6. From the Transfer menu in HyperTerminal, select Capture Text, then select Stop. 7.
Monitoring System Status E.7 Displaying Overall Statistics You can display two types of aggregate statistics for all partition LUNs: • General statistics (Similar statistics are also available for individual partition LUNs. For more information, see section D.3.2.2, "Viewing Partition Statistics" on page 239.
Monitoring System Status determine if additional arrays would increase performance and what type of RAID level is applicable to your needs. You may want to analyze the performance of the same application using different RAID levels to determine which level gives you the best performance. See Appendix B, "Array Basics" on page 185 for more details on RAID levels. NOTE: The statistics are provided as general information for your use, however, they are not intended for benchmarking purposes.
Monitoring System Status E.7.1 Resetting Overall Statistics You can also reset all of the overall statistics back to zero. You may want to reset the statistics if you are monitoring performance or doing benchmark testing. NOTE: Resetting statistics here also resets the statistics for each individual partition. See section D.3.2.3 on page 241. To reset overall statistics: 274 1. From the System Menu, select Utilities Menu and press . The Utilities Menu displays. 2.
F Managing Spares Using the Disk Array Administrator, you can manage spares. EF2800 RAID controllers automatically reconstruct redundant (faulttolerant) arrays (RAID 3, RAID 4, RAID 5, RAID 50, and mirrored) if an array becomes critical and a properly sized spare drive is available. An array becomes critical when one or more member drives fails. You can set up two types of spare drives: • Dedicated: Available drive that is assigned to a specific array (see page 276).
Managing Spares F.1 Managing Dedicated Spares Dedicated spares are unused disk drives that you assign as a spare to a specific array. The disk must be as large as the smallest member of the array. You cannot use a dedicated spare drive as a member of an array or as a pool spare. Although using a dedicated spare is the most secure way to provide spares for your arrays, it is also expensive to keep an idle drive assigned to each array.
Managing Spares NOTE: If a drive was a member of an array and was removed from the array, you cannot use it as a spare until you clear the drive’s metadata. For more information, see section G.1.2, "Clearing Metadata from a Drive" on page 288. To toggle the display between the drive model number, serial number, and the node and WWN, press . F.1.2 4. Select the drive you want to add as a spare and press . The system confirms the change. 5. Select Yes and press .
Managing Spares F.2 Enabling Dynamic Spares The Dynamic Spares option lets you use all of your disk drives in redundant arrays, without assigning one as a spare. For example, if you enable Dynamic Spares and a drive fails, you can replace the drive and the SM will rescan the bus, find the new disk drive, and automatically start reconstruction of the array. The SM automatically finds the new drive and reconstructs the array.
Managing Spares Figure 148. Dynamic Spare Config Menu 4. Select Enabled and press . The Rescan Rate screen displays. 5. Enter the rescan rate in minutes. This tells the SM how often it should look for an available drive by rescanning the bus. Rescanning the bus frequently can affect performance. If you have an EMP, the dynamic spare configuration will not rescan the bus. The EMP will detect the new drive and tell the SM to rescan; the rescan rate you set here will not affect the system. 6.
Managing Spares F.3 Managing the Spare Pool The spare pool lets you have one or more disk drives available for the reconstruction of redundant arrays (mirrored [RAID 1 and RAID 10] and parity [RAID 3, RAID 4, RAID 5, and RAID 50]). Once you assign a drive to the spare pool, it is not available for use as an array member or as a dedicated spare. Pool spares are available to both SMs. If a drive in an array on either SM fails, the SM can use a pool spare to reconstruct the array.
Managing Spares F.3.2 Deleting a Spare from the Spare Pool You can delete a spare from the spare pool at any time. To delete a spare from the spare pool: F.3.3 1. From the System Menu, select Pool Spare Menu and press . The Pool Spare Menu displays. 2. Select Delete Pool Spare and press . The Delete Pool Spare screen displays listing the drives assigned to the spare pool. 3. Select the pool spare you want to delete and press .
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G Managing Disk Drives and Enclosures Using the Disk Array Administrator, you can control a variety of functions related to disk drives and enclosure management processor (EMP) enclosures connected to your EF2800.
Managing Disk Drives and Enclosures G.1 Managing Disk Drives The Disk Array Administrator software lets you control a variety of functions related to disk drives. You should also refer to your disk drive or enclosure documentation for information about related functions. G.1.
Managing Disk Drives and Enclosures Drives that are not members of any array are listed as Available. Drives that contain leftover metadata from a previous array are listed as Leftover. This situation can arise if drives are removed and reinserted or the drives failed temporarily and are not operating again. To clear leftover metadata, use the Clear Metadata function. See section G.1.2, "Clearing Metadata from a Drive" on page 288.
Managing Disk Drives and Enclosures G.1.1.
Managing Disk Drives and Enclosures Figure 150. Drive Status Screen 4. G.1.1.3 Press to return to the Array Menu. Displaying Drive Errors and Resetting Error Statistics You can display drive errors for a specific drive. You know a drive has errors when you see the letter E in the first column of the Display Drives screen. To display drive errors: 1. From the System Menu, select Display Drives and press . The Display Drives screen displays. 2.
Managing Disk Drives and Enclosures G.1.2 Clearing Metadata from a Drive All of the member drives in an array contain metadata in the first sectors of the drive. The EF2800 uses the metadata to identify array members after restarting or replacing an SM. You can clear the metadata from a drive if you have a drive that was previously a member of an array. Drives in this state display “Leftover” in the Display Drives screen. After you clear the metadata, you can use the drive in an array or as a spare.
Managing Disk Drives and Enclosures CAUTION ! We recommend that you disable disk write-back cache. Some drives delete their write-back cache if they encounter an internal error, resulting in lost data. To change the write-back cache setting: 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select Disk Configuration and press . The Disk Configuration screen displays (Figure 151). Figure 151. Disk Configuration Screen 3.
Managing Disk Drives and Enclosures G.1.4 Displaying Disk Cache Status You can display the cache status of each disk drive. Any disk drives with write-back cache enabled should be connected to a UPS in case of power failure. If the drives are not on a UPS and power is lost during disk writes, the array will lose any data in the disk’s write-back cache. To display disk cache status: 1. From the System Menu, select Utilities Menu and press . The Utilities Menu displays. 2.
Managing Disk Drives and Enclosures G.1.5 Enabling and Disabling SMART Changes You can enable or disable the ability to change the Self-Monitoring, Analysis and Reporting Technology (SMART) settings for all drives connected to the EF2800. This can be set to ENABLE, DISABLE, or DON’T MODIFY (which means the EF2800 should not change any drive’s SMART settings). The default setting is DON’T MODIFY.
Managing Disk Drives and Enclosures G.1.6 Blinking a Drive LED You can blink the LED on a specific drive one of two ways: • From the Drive Utilities Menu (only works for a single drive; see below) • From the Display Drives list when you add a pool spare or display all drives (works for multiple drives). Select the drive and press . Press again to stop the blinking. To blink a drive LED from the Drive Utilities Menu: 1. From the System Menu, select Utilities Menu and press .
Managing Disk Drives and Enclosures To take down a drive: 1. From the System Menu, select Utilities Menu and press . The Utilities Menu displays. 2. Select Drive Utilities Menu and press . The Drive Utilities Menu displays. 3. Select Down Drive and press . 5. The system prompts you to confirm changes. Select Yes and press to make the change.
Managing Disk Drives and Enclosures G.2 Managing Enclosures An enclosure management processor (EMP) is a device in the enclosure from which the EF2800 can inquire about the enclosure’s environmental conditions such as temperature, power supply and fan status, and the presence or absence of disk drives. The EF2800 can also tell the EMP about RAID activities such as drive rebuilds and failed disk drives.
Managing Disk Drives and Enclosures To change the EMP LUN: 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select EMP Configuration and press . The EMP Configuration screen displays (Figure 156). Figure 156. EMP Configuration Menu 3. Select EMP LUNs and press . The EMP LUNs screen displays. Figure 157. EMP LUNs Screen 4. Select the EMP you want and press . The EF2800 assigns EMP IDs sequentially when it starts.
Managing Disk Drives and Enclosures If you do not want to assign the EMP a LUN, select NONE and press . To keep the same LUN for the EMP at all times, select the LUN you want to use and press . This can be any number from 0 to 63 that is not already in use. G.2.2 6. The system prompts you to confirm changes. Select Yes and press to make the change. 7. Restart to have your changes take effect. See section H.1.1, "Shutting Down and Restarting the Current SM Module" on page 298.
H Configuring the EF2800 Using the Disk Array Administrator, you can configure settings and perform a variety of functions on the EF2800.
Configuring the EF2800 H.1 Shutting Down and Restarting the Storage Manager Module • Shut down and restart the current SM module: Gracefully shuts down and restarts the SM module you are currently accessing using the Disk Array Administrator software (as shown at the bottom of each screen). Use this option when you have changed a configuration that requires restarting (the procedures say when you need to do this) or when you need to replace the SM module (see page 298).
Configuring the EF2800 To shut down and restart the current SM: 1. From the System Menu, select Shutdown Menu and press The Shutdown Menu displays (Figure 160). Figure 160. Shutdown Menu H.1.2 2. Select Shutdown/Restart and press . 3. The system prompts you to confirm shut down. Select Yes and press . The system confirms that it has shut down. 4. To restart the SM, press to restart. The system performs its self-test.
Configuring the EF2800 To shut down the other SM module: H.1.3 1. From the System Menu, select Shutdown Menu and press . The Shutdown Menu displays. 2. Select Shutdown Other and press . 3. The system prompts you to confirm shut down. Select Yes and press . The system confirms that it has shut down. Shutting Down Both SM Modules You can simultaneously and gracefully shut down both SM modules.
Configuring the EF2800 H.2 Changing the Date and Time You can change the date and time on either SM module. A change to this setting on either SM module is automatically updated on the other SM module. To set an SM module’s date: 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select Set Date/Time and press . The Set Date/Time screen displays (Figure 161). Figure 161. Set Date/Time Menu 3. Select Set Date and press .
Configuring the EF2800 To set an SM module’s time: 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select Set Date/Time and press . The Set Date/Time screen displays. 3. Select Set Time and press . The Set Time screen displays (Figure 163). Figure 163. Set Time Screen 302 4. Enter the time you want and press . Enter the time using a 24-hour clock in the following format: hh:mm:ss. 5.
Configuring the EF2800 H.3 Configuring the Host Channels You can configure several settings for each host channel independently. • Topology: You should be sure that the topology setting is correct for your configuration. You can set the topology to: - LOOP—Use this option for all configurations except when the SM module is connected to a switch F-port. You must use this option if the internal hubs are enabled. - POINT-TO-POINT—Use this option only when you connect the SM module to a switch F-port.
Configuring the EF2800 channel via SCSI protocol extensions. (for more information about LUNs, see section H.4 on page 305) • If you are not using CAPI, you can set the CAPI LUN to NONE. If you are using CAPI, you can set it to a value of 0-63. You have two options for setting the LUN: - NONE—Use this setting if you are not using CAPI to configure the EF2800.
Configuring the EF2800 H.4 Understanding LUNs and Viewing LUN Information Each SM module supports up to 64 FC logical unit numbers (LUNs), or 128 after a failover, that are numbered zero through 63. There are three different types of LUNs: CAPI, EMP, and partition. You can view information about each LUN (see section H.4.1). The three types of LUNs have the following characteristics: • CAPI LUN: Allows CAPI to configure the SM module. Each EF2800 can have a CAPI LUN.
Configuring the EF2800 H.4.1 Viewing LUN Information You can view information for each existing LUN. To view LUN information: 1. From the System Menu, select Utilities Menu and press . The Utilities Menu displays (Figure 164). Figure 164. Utilities Menu 2. Select LUN information and press . The LUN Information screen displays (Figure 165). Figure 165. LUN Information Screen 3. 306 Press to return to the Utilities Menu.
Configuring the EF2800 H.5 Configuring the FC Disk Channels You can change two configuration options for each FC disk channel: • Link speed: This is the maximum speed the EF2800 will attempt to negotiate. You can set the speed to: 1 GB/second or 2 GB/second. The Link Speed setting is set on the Ops Panel switches (see section 1.2.2.1 on page 6. • Initiator ID assigned to each channel: The EF2800 assigns each of its FC disk channels one of the FC loop IDs (initiator IDs).
Configuring the EF2800 Figure 166. Select Disk Channel Screen H.6 3. Select the channel you want and press . 4. Select the initiator ID you want and press . 5. The system prompts you to confirm changes. Select Yes and press to make the changes. 6. Press to return to the Configuration Menu.
Configuring the EF2800 A change to this setting on either SM module is automatically updated on the other SM module. Figure 167 shows the temperature and voltage thresholds for each alarm and what to do to resolve the problem. Figure 167. .Alarm thresholds Alarm threshold EF2800 internal temperature • Warning: 0°C to 4°C and 66°C to 70°C • Shutdown: <0°C and >70°C What to do when the alarm sounds • Check the Disk Array Administrator software to confirm what the alarm means. See section E.2 on page 260.
Configuring the EF2800 Figure 167. .Alarm thresholds Alarm threshold 12V voltage What to do when the alarm sounds • Same as above for the VCC voltage. • Warning: 12 V -20% to 10% and +10% to +20% • Shutdown: 12 V <-20% and >+20% 2.5 V voltage • Same as above for the VCC voltage. • Warning: 2.5 V -10% to -8% and +8% to +10% • Shutdown: N/A To enable or disable the alarm: 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2.
Configuring the EF2800 H.7 Locking the Cache Setting You can prevent host systems from using SCSI mode-select commands to change the EF2800 system’s write-back cache setting. Some operating systems disable write cache. If cache lock is enabled, the host cannot modify the cache setting. The default setting is disabled. This option is useful in some environments where the host system disables the SM module’s write-back cache, resulting in degraded performance.
Configuring the EF2800 H.8 Enabling and Disabling the Battery If you are not using a battery in your EF2800, the EF2800 will activate an alarm. To eliminate the alarm, you can disable the battery. The default setting is battery enabled. NOTE: You should only disable the battery if you are running the EF2800 with an Uninterruptible power supply (UPS), so that you will not lose power to the EF2800. If you disable the battery, the EF2800 will not give any warnings, nor will it disable the write-back cache.
Configuring the EF2800 H.9 Changing the Utility Priority You can change the priority at which all utilities (Verify, Reconstruct, Expand, Initialize, etc.) run when there are active I/O operations competing for the EF2800 system’s CPU. The choices are: • High (default) • Medium • Low For example, select High if your highest priority is to get the array back to a fully fault-tolerant state. This causes heavy I/O with the host to be slower than normal.
Configuring the EF2800 H.10 Rescanning All Channels You can tell the EF2800 system to scan all disk channels for new or removed disk drives. You can use this option when you install or remove drives. The rescan temporarily pauses all I/O processes and then resumes normal operation. If you are using an enclosure with an EMP, the EF2800 will perform a rescan automatically.
Configuring the EF2800 H.11 Pausing I/O Most drive enclosures allow you to remove and replace drives while FC disk channel activity continues. However, you may still want to pause I/O if you are replacing more than one disk drive. The Hot Swap Pause option suspends activity on all device channels used in the EF2800, thereby ensuring data integrity on the connected drives and arrays. CAUTION ! Pausing I/O halts active I/O to the host.
Configuring the EF2800 H.12 Restoring Default Settings You can restore all of the EF2800 system default settings. You may want to do this if the EF2800 is not working properly and you cannot determine why. This lets you then change the settings that are critical to your configuration. To restore the default settings: H.13 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select Restore Defaults and press .
Configuring the EF2800 H.13.1 Updating SM, SM Loader and Memory Controller Firmware You use the Flash Utility to download new firmware (.fla file) for your SM modules, memory controller, and the storage controller loader. The Flash Utility is resident in the embedded firmware of the SM modules. You can access the Flash Utility using either your RS-232 or Ethernet connection to the SM module. If you want to use the Ethernet connection, your Telnet utility must support either the Kermit or Xmodem protocol.
Configuring the EF2800 7. Press the number on your keyboard that corresponds to the protocol you want to use to transfer the firmware upgrade file from your computer to the SM module. We recommend using the KERMIT protocol. The system shows that it is ready to use KERMIT. 8. Using your terminal emulator software, send the.fla file using KERMIT. If you are using HyperTerminal, select Transfer > Send File, navigate to where the firmware update file is located, select it, and click Open.
Configuring the EF2800 2. Call technical support for information about downloading the firmware updates. 3. From the computer connected to the SM module, access the DOS window. 4. At the DOS prompt change to the directory where you downloaded the.bfl file. 5. Enter: ftp [SM module’s IP address] 6. At the User prompt enter: flash 7. At the Password prompt enter: flash 8. At the FTP prompt enter: bin 9. At the FTP prompt enter: put [.
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I LAN Configuration Before you can access the Disk Array Administrator software using the Ethernet port, you must set up each SM module for TCP/IP. The following sections describe the TCP/IP setup. A SM module that is part of a TCP/IP network requires three basic IP configuration elements: IP address, subnet mask, and default gateway IP address. The SM module’s IP address must be unique to the network in which the SM module resides.
LAN Configuration I.2 Configuring the LAN Settings You can configure several LAN settings for each SM using the Disk Array Administrator software: • IP settings (see page 322) • FTP settings (see page 323) • Telnet settings (see page 324) • SNMP settings (see page 324) • Contact settings (see page 325) • HTTP settings (see page 326) • Security options (see page 326) • Reset LAN Subsystem (see page 328) I.2.
LAN Configuration I.2.2 2. Select LAN Configuration and press . The LAN Configuration screen displays. 3. Select IP Settings and press . The IP Settings screen displays. 4. Select the option you want and press . The screen displays related to the option you selected. 5. Enter the IP address, subnet mask, or gateway you want and press . 6. The system prompt you to confirm changes. Select Yes and press . The system makes the change.
LAN Configuration I.2.3 Configuring the Telnet Settings You can set two Telnet-related settings: • Password: Password for accessing the SM module using the Ethernet port and Telnet. You can enter up to 32 characters. The default is null (press ). • Timeout: Number of idle minutes before the Telnet session times out. The default is no timeout, which is shown as 0 minutes in the Disk Array Administrator.
LAN Configuration • Write Community: SNMP write password. The default is Private. • Event Filter: Informational, Warning, or Error. The default is Warning. • Trap Filter: Informational, Warning, or Error. The default is Warning. Changes to any of these settings on either SM module are automatically updated on the other SM module. To set the SNMP settings: I.2.5 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2.
LAN Configuration Changes to any of these settings on either SM module are automatically updated on the other SM module. To set the contact settings: I.2.6 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select LAN Configuration and press . The LAN Configuration screen displays. 3. Select Contact Settings and press . The Contact Settings screen displays. 4. Select the option you want and press .
LAN Configuration To set the HTTP settings: I.2.7 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select LAN Configuration and press . The LAN Configuration screen displays. 3. Select HTTP Settings and press . The HTTP Settings screen displays. 4. Select the password you want to change and press . The screen displays related to the password you selected. 5. Enter the new password you want and press .
LAN Configuration To change any of the security options: I.2.8 1. From the System Menu, select Configuration Menu and press . The Configuration Menu displays. 2. Select LAN Configuration and press . The LAN Configuration screen displays. 3. Select Security Options and press . The Security Options screen displays. 4. Select the option you want and press . The screen displays related to the option you selected. The current option has an * next to it. 5.
Glossary In glossary definitions, italics are used for items defined elsewhere in the glossary and bold is used for the items shown in brackets after the main heading of the entry. Address An address is a data structure or logical convention used to identify a unique entity, such as a particular process or network device. Arbitrated Loop Physical Address (AL_PA) An AL_PA is a 1-byte value used in an arbitrated loop topology. This value is used to identify L_Ports.
Glossary Bus See channel. Byte A group of binary digits stored and operated upon as a unit. A byte may have a coded value equal to a character in the ASCII code (letters, numbers), or have some other value meaningful to the computer. In user documentation, the term usually refers to 8-bit units or characters. 1 kilobyte (K) is equal to 1,024 bytes or characters; 64K indicates 65,536 bytes or characters.
Glossary Chassis A sheet metal enclosure incorporating a Backplane PCB and module runner system. The chassis contains a number of 'Bays', each of which can accommodate a plug in module. There are sixteen drive carrier bays at the front and five bays at the rear which house power supply/cooling and LRC I/O modules and also the Ops Panel. Configure To set up a hardware device and its accompanying software.
Glossary Failback In Active-Active mode, failback is the act of returning ownership of controller resources from a surviving controller to a previously failed (but now active) controller. The resources include disk arrays, cache data, and host ID information. Failover In Active-Active mode, failover is the act of temporarily transferring ownership of controller resources from a failed controller to a surviving controller. The resources include disk arrays, cache data, and host ID information.
Glossary Fibre Channel (FC) FC is a bidirectional, point-to-point serial data channel, structured for high-performance capability. In the physical sense, an FC is an interconnection of multiple communication points, called N_Ports, by a switching network (fabric). FC transports incoming data from devices by reading the buffer information, packaging it, and sending the information across the fabric.
Glossary Hot swap Hot swapping is the term used for manually swapping a failed disk unit with a replacement while the EF2800 Subsystem is in normal use. Hz (Hertz) a frequency measurement unit used internationally to indicate cycles per second. in-band Method of accessing and managing the SM controller or EF2800 Subsystem using the SCSI or FC host connection. This type of access is available using CAPI to develop a programmed interface. Initialize To prepare a hardware device for use.
Glossary Loop Resiliency Circuit (LRC): Circuits within the SM modules which provide loop resiliency in the event of a drive failing or being unplugged. Low Voltage Differential (LVD) LVD is a method of powering SCSI cables that will be formalized in the SCSI-3 specifications. LVD uses less power than the current differential drive (HVD), is less expensive, and allows for higher speeds such as those of Ultra2 SCSI. LVD requires 3.3 volts (versus 5 volts for HVD).
Glossary out-of-band Method of accessing and managing the EF2800 controller or Subsystem using the RS-232 or Ethernet, if available, connection. ownership In an active-active configuration, a single controller has ownership of the following resources: arrays and dedicated spares.
Glossary Protocol A system of rules and procedures governing communications between two or more devices. Protocols vary, but communicating devices must follow the same protocol in order to exchange data. The format of the data, readiness to receive or send, error detection and error correction are some of the operations that may be defined in protocols. Redundant Not essential. router A router is a device that enables connectivity between SCSI devices and FC networks.
Glossary SCSI device A SCSI device is a single unit on a SCSI bus that originates or services SCSI commands. A SCSI device is identified by a unique SCSI address. SCSI devices can act as initiators or targets. SCSI port A SCSI port is an opening at the back of a router that provides connection between the SCSI adapter and SCSI bus. Serial Transmission The transfer of data characters one bit at a time, sequentially, using a single electrical path. See Parallel Transmission.
Glossary Storage Manager module The controller module which includes an FC-AL 2Gb/s LRC I/O module with integral EF2800 RAID controller. target A target is a device (peripheral) that responds to an operation requested by an initiator (host system). Although peripherals are generally targets, a peripheral may be required to act temporarily as an initiator for some commands (for example, SCSI EXTENDED COPY command).
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Index A Abort an Array Utility page 75, 91 Abort Initialization 222 access to partitions, controlling 98, 250 accessing Disk Array Administrator 46, 193, 201 SAM software 48 the Disk Array Administrator software 46 accessories, available 184 Add a Partition 223 Add an Array 206, 212 Add Host to List 255, 256 Add or Name Host screen 253 adding arrays 67, 205 dedicated spares 84, 276 global spares 85 partitions 80, 222 pool spares 280 address, FC-AL 31 alarm 147 turning on or off for the EF2800 122, 308 al
Index B backoff percentage changing 161 backoff percentage, changing 161 BATT light 146 battery disabling 124, 312 enabling 124, 312 Battery screen 312 bay, numbering 16 Blink Drive LED page 137 blinking, LED of disk drive 137, 292 browsers, cache settings for 44 Bus Paused screen 315 C 140, 296 cache disabling for disk drives 135, 288 disabling write-back for partitions 249 enabling for disk drives 135, 288 enabling write-back for partitions 249 locking setting on the EF2800 124, 311 setting read-ah
Index capturing 270 displaying 266 Configuration Information screen 269 configuration software, accessing verifying 91, 225 Data Managers changing LUNs for 121 LUNs for 120, 305 shutting down the other 48, 193, 201 configuring disk channels 307 EF2800 57 LAN settings 52, 116, 322 the device ports 60 the EF2800 57, 115, 297 the host ports 57 the HTTP setting 53 connecting EF2800 29 to the Ethernet Port 35 to the RS-232 port 34 contact settings, configuring 117, 325 controller module specifications 182
Index 135, 288 Disk 40 Disk Array Administrator accessing 46, 193, 201 changing the screen display 200 initial screen 196, 199 menu tree 201 navigating in 200 Disk Array Administrator software accessing 46 Disk Array Config page 88 disk arrays adding a partition to 80 adding spares to 84 creating 67 deleting spares from 85 expanding capacity of 76 managing 74 reconstructing 75 stopping the initialization process 75 disk channels changing FC loop ID of 307 changing link speed 307 configuring 307 Disk Conf
Index Drive Status page 88 drives blinking LED of 137, 292 clearing metadata from 135, 288 disabling SMART changes 136, 291 disabling write-back cache 135, 288 displaying 134, 284 enabling SMART changes 136, 291 enabling write-back cache 135, 288 maximum by array type 68, 205 minimum by array type 68, 205 taking down 137, 292 testing 138, 293 using disks from different manufacturers 191 using disks with different capacities 191 viewing cache status cache 136, 290 viewing status of 88, 134, 220, 286
Index enabling SMART changes 136, 291 the battery 124, 312 write-back cache changes 135, 288 enclosure 3, 5, 11, 150 address, device 31 connecting 29 device address 31 ID 31 ID, setting 31 installation 17 powering on 37 Enclosure Management page 140 Enclosure Services Processor 141 Enclosure System Interface/ Operators Panel 6 enclosures changing LUNs 139, 294 changing the enclosure status setting 140, 296 changing the polling interval 140, 296 changing the slot status setting 140, 296 changing the tempe
Index FC disk channels changing FC loop ID 307 changing speed of 307 configuring 307 G FC host ports setting the FC loop ID of 58 setting up 57 setting up the link speed 57 setting up the topology of 59 General InfoShield 252, 257 General InfoShield screen 252, 257 Global Flags, defined 140 global spares adding 85 defined 82 deleting 86 displaying 86 FC loop IDs changing for disk channels H 307 setting for device ports 60 setting for host ports 58 FC Port Status page 106 FC ports, problems with 160
Index 119, 327 HTTP setting configuring 53 I icons for arrays 74 page refresh 50 ID, enclosure 31 IEC 320 connector 36 In-Band Management enabling and disabling 119 Include All Hosts 256, 257 Include Listed Hosts 256 InfoShield configuring 101 naming WWNs 100 nicknaming WWNs 253 option 255 overview 98, 250 page 101 setting to include all hosts 257 viewing known WWNs 99, 251 InfoShield option 255 InfoShield page 101 initial Disk Array Administrator screen 196, 199 initialization process, stopping for arra
Index LAN Information page 106 LAN subsystem resetting 328 restarting 66 updating firmware for 318 updating software for 131 LAN subsystem loader updating software for 131 LED 5, 12, 142, 143, 152 blinking for disk drives 137, 292 drive module 10 IO module 9 Ops panel 6 system 148 leftover drives, clearing metadata from 135, 288 lights blinking LEDs for disk drives 137, 292 Li-ion battery pack 9 link speed 303 selecting for disk channels 307 setting up for host ports 57 Load Software page 131 locking EF
Index metadata, clearing from disk drives 135, 288 mirrored disks 187 Misc Configuration page 107 mixing disks on arrays 191 Module Status page 106 Modules Online/Offline page 64, 65, 66 Mute button 122, 308 muting the EF2800 alarm 122, 308 N names changing for arrays 93, 231 changing for partitions 96, 244 creating for WWNs 100 navigating in SAM 51 navigating in the Disk Array Administrator software 200 network configuring HTTP settings for 326 configuring security options for 119, 327 configuring sett
Index Partition Name screen 224 Partition Rate Stats page 89, 90 Partition Status 238 Partition Status page 96 partitions adding 80, 222 changing LUNs for 97, 245 changing names of 96, 244 controlling access to 98, 101, 250 creating array with multiple 212 creating array with one 206 deleting 104, 257 disabling write-back cache for 249 enabling write-back cache for 249 expanding capacity of 81, 236, 243 giving access to all 257 LUNs for 121, 305 managing 78, 96, 235 resetting all statistics 90 resettin
Index RAID levels compared 189 RAID Type screen 208, 213 Read Ahead Cache page 103, 104 read-ahead cache size setting for partitions 103, 247 rebooting an SM 61 reconstructing arrays 75, 82, 227, 275 remote notification setting up 110 setting up e-mail addresses for 111 setting up events for 110, 111 remote notification starting and stopping 110 Remove Host from List 256 repair, how to return product for 357 Rescan 314, 315 Rescan page 126 rescanning all ports 126 channels 314 Reset All Statistics page 1
Index Select Disk Channel screen 308 Select Event Categories page 111 Select Free Partition screen 223 Select ID 142 Select Specific Events page 111 serial port accessing Disk Array Administrator 194 accessing the EF2800 using 46 connecting to 34 settings for 194 SES 26, 31, 183 SES Communications 31 Set Date screen 301 Set Date/Time 301, 302 Set Date/Time screen 301 Set Time screen 302 setting up device ports 60 host ports 57 SFP connector 9 SFP to SFP patch cable 29, 31 Show Global Spare page 86 slot s
Index subsystem 131 updating for the LAN subsystem loader 131 updating for the memory controller 131 updating for the storage controller 131 updating for the storage controller loader 131 software requirements 44 spare parts, list of 184 spares adding dedicated 84, 276 adding global 85 adding pool 280 defined 275 deleting dedicated 85, 277 deleting global 86 deleting pool 281 displaying global 86 displaying pool 281 enabling automatic 83, 278 enabling dynamic 83, 278 use in reconstructing 82, 275 specifica
Index system, monitoring status of trusting arrays 93, 232 105, 259 U T target ID 303 TCP/IP set up to access controller software 197 set up to access Disk Array Administrator 321 set up to access RIO software unpacking the EF2800 18 updating firmware 316 LAN subsystem firmware 318 LAN subsystem loader software 131 LAN subsystem software 131 memory manager firmware 197 317 memory manager software technical specifications 179 technical support, contacting 357 Telnet configuring 116, 324 enabling an
Index View Statistics 273 View Statistics screen 273 View Verify Status 227 viewing aggregate statistics for all arrays 113, 272 array statistics 89 array status 88, 218 cache status for disk drives 136, 290 disk drives 134, 284 drive status 88, 134, 220, 286 events 260 global spares 86 known WWNs 99, 251 LUN information 121, 306 partition statistics 89, 239 partition status 96, 237 pool spares 281 read/write histogram enabling or disabling for partitions 249 locking setting on EF2800 124 locking setting
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