Reference Guide hp StorageWorks Modular Smart Array 1000 (MSA1000) First Edition (September 2003) Part Number: 347280-001 The HP StorageWorks Modular Smart Array 1000 is a 2-Gb Fibre Channel storage system designed for the entry-level to mid-range Storage Area Network (SAN). Designed to reduce the complexity, expense, and risk of SAN deployments in heterogeneous configurations, the MSA1000 provides a scalable, high-performance system.
© Copyright 2002-2003 Hewlett-Packard Development Company, L.P. Hewlett-Packard Company makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
Contents Contents About this Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Array Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Array Fault Tolerance Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selective Storage Presentation (SSP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCSI I/O Module with an Integrated Environmental Monitoring Unit (EMU) . . . . . . . Redundant Power Supply/Blower Assembly . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Federal Communications Commission Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Canadian Notice (Avis Canadien) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . European Union Notice . . . .
Contents 6 MSA1000 Reference Guide
About This Guide About this Guide This reference guide provides information to help you: ■ Operate the MSA1000About this Guide ■ Configure the MSA1000 “About this Guide” topics include: ■ Overview, page 8 ■ Conventions, page 9 ■ Rack Stability, page 12 ■ Getting Help, page 12 MSA1000 Reference Guide 7
About this Guide Overview This section covers the following topics: ■ Intended Audience ■ Related Documentation Intended Audience This book is intended for use by administrators with a moderate amount of SAN-management experience. Related Documentation In addition to this guide, refer to the HP StorageWorks MSA1000 Installation Overview poster that ships with this system.
About this Guide Conventions Conventions consist of the following: ■ Document Conventions ■ Text Symbols ■ Equipment Symbols Document Conventions The document conventions included in Table 1 apply in most cases.
About this Guide Text Symbols The following symbols may be found in the text of this guide. They have the following meanings. WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of life. Caution: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or data. Note: Text set off in this manner presents commentary, sidelights, or interesting points of information.
About this Guide Any surface or area of the equipment marked with these symbols indicates the presence of a hot surface or hot component. Contact with this surface could result in injury. WARNING: To reduce the risk of injury from a hot component, allow the surface to cool before touching. Power supplies or systems marked with these symbols indicate the presence of multiple sources of power.
About this Guide Rack Stability Rack stability protects personnel and equipment. WARNING: To reduce the risk of personal injury or damage to the equipment, be sure that: ■ The leveling jacks are extended to the floor. ■ The full weight of the rack rests on the leveling jacks. ■ In single rack installations, the stabilizing feet are attached to the rack. ■ In multiple rack installations, the racks are coupled. ■ Only one rack component is extended at any time.
About this Guide Outside North America, call technical support at the nearest location. Telephone numbers for worldwide technical support are listed on the HP website under support: http://www.hp.com.
About this Guide 14 MSA1000 Reference Guide
Introduction 1 The MSA1000 is a next generation, 2-Gb storage system designed for the entry level to mid-range Storage Area Network (SAN). Designed to reduce the complexity, expense, and risk of SAN deployment, the MSA1000 provides a scalable, high-performance storage system with investment protection in mind. The modular design of the MSA1000 allows storage capacity to be added as needed.
Introduction About the MSA1000 The MSA1000 provides a high performance array controller in a 14-drive storage cabinet, capable of 2 Gb/s speeds over Fibre Channel. It may be expanded by adding two more storage cabinets for a total capacity of 42 drives. The MSA1000 is compatible with 1 Gb/s and 2 Gb/s hub and fabric switch interconnects and includes options for embedded switches and hubs. Complete operating redundancy is supported, including redundancy while expanding disk and unit volumes.
Introduction Features of the MSA1000 Key features of the MSA1000 are summarized in Table 2.
Introduction Supported Software Components Supported software is summarized in Table 3.
Introduction Front View of the MSA1000 The following figure and supporting table illustrate and define the front view features of the MSA1000. 1 2 3 4 7 6 5 Figure 1: Front view of the MSA1000 Item MSA1000 Reference Guide Description 1 Blank panel Included in the standard shipping configuration and removed when a redundant MSA1000 Controller is installed. In redundant configurations, this is the secondary controller and may be referred to as controller2.
Introduction Rear View of the MSA1000 The following figure and supporting table illustrate and define the features and components on the rear of the MSA1000.
Introduction Hot-Pluggability Hot-pluggability allows components to be removed and replaced without powering down the MSA1000. The following MSA1000 hardware components are hot-pluggable: Hard Drives—Failed drives in fault-tolerant configurations can be replaced without interrupting system operation. Data on the failed drive is restored automatically to the replacement drive online.
Introduction System Power Power to the MSA1000 does not shut off completely with the power switch. The two positions of the front panel power switch should be considered as on and standby, instead of on and off. The standby position removes power from most of the electronics and the drives, but portions of the power supply and some internal circuitry remain active. Consequently, to remove all power from the MSA1000 storage system, you must disconnect the power cord from the storage system.
Introduction MSA1000 Hardware Components The standard configuration of the MSA1000 includes one MSA1000 Controller, one MSA Fibre Channel I/O Module, one SCSI I/O with an integrated EMU, and redundant power supply/blower assemblies. Option kits are available for redundant MSA1000 Controllers and Fibre Channel I/O Modules as well as for embedded switches and hubs.
Introduction MSA1000 Controller Display Each array controller in an MSA1000 contains an integrated Liquid Crystal Display (LCD). This module is used for displaying informational and error messages, showing the status of the module, and for providing user input when required. Traditional Power-On Self-Test (POST) messages issued by PCI-based array controllers have been combined with runtime event notification messages to create a new set of controller display messages.
Introduction Array Accelerator (Battery-backed Cache) The Array Accelerator is a high-performance, upgradeable 256-MB SDRAM DIMM read/write battery-backed cache that can increase performance in database and fault-tolerant configurations. It performs both protected posted-write caching and read-ahead caching, allowing data to be accessed much faster than from disk storage. In protected posted-write caching, data is written to the cache memory on the Array Accelerator rather than directly to the drives.
Introduction Array Accelerator Batteries The Array Accelerator has two rechargeable and replaceable Nickel Metal Hydride (NiMH) battery packs. Under normal operating conditions, these should last for three years before replacement is necessary. They are continuously recharged via a “trickle” charging process whenever the MSA1000 storage system is powered on. The battery packs protect data on the Array Accelerator against equipment failure or power outage for up to four continuous days.
Introduction Array Configuration Drive array technology distributes data across a series of individual hard drives to unite these physical drives into one or more higher-performance logical arrays and volumes. Distributing the data allows for concurrent access from multiple drives in the array, yielding faster I/O rates than non-arrayed drives. Each logical drive in the array can be set to a different level of fault tolerance.
Introduction Selective Storage Presentation (SSP) SSP permits sharing of the MSA1000 storage between servers, including servers running different operating systems. Each logical drive on the controller has an Access Control List (ACL) that contains the worldwide names of the server host adapters that have access to the drive. If a server tries to send commands to a logical drive that it does not have access to, the firmware will reject the command.
Introduction SCSI I/O Module with an Integrated Environmental Monitoring Unit (EMU) This element performs several functions, including monitoring the enclosure operation, detecting and indicating errors, providing I/O connectors, and displaying enclosure status. Figure 5 is an illustration of a SCSI I/O Module with the integrated EMU.
Introduction Redundant Power Supply/Blower Assembly The MSA1000 includes a redundant power supply. The redundant power supply is identical to the primary supply and shares the electrical load equally. If either supply fails or is removed, the other power supply assumes the full load without interruption. Hot-pluggability allows you to replace the failed supply without shutting the MSA1000 storage system down. The MSA1000 includes a redundant blower.
Introduction Fibre Channel I/O Module The Fibre Channel I/O Module is a single-port, 1-Gb/2-Gb Fibre Channel device that includes a 2 Gb/s Small Form Factor Pluggable Transceiver (SFP) port. Figure 7 is an illustration of the Fibre Channel I/O Module. This module can be removed and replaced with other interconnect options, such as the MSA SAN Switch 2/8 or the MSA Hub 2/3. In redundant configurations, the interconnect devices must be a matching pair.
Introduction MSA SAN Switch 2/8 The MSA SAN Switch 2/8 is an optional 2-Gb/s, integrated 8-port fabric switch (1 port internal to the MSA1000), that enables full duplex non-blocking performance on all ports. For information about the MSA SAN Switch 2/8, refer to the HP StorageWorks MSA SAN Switch 2/8 Installation Guide. Figure 8 is an illustration of the MSA SAN Switch 2/8.
Introduction MSA Hub 2/3 The MSA Hub 2/3 is an optional input/output device designed to replace the single port Fibre Channel I/O Module that comes standard with the MSA1000. This option is designed to provide an inexpensive and easy way for a clustered pair of servers to access the storage controller (using the arbitrated loop configuration) without having to buy an external hub or switch. Two SFP ports are presented to the user while internally a third port accesses the controller.
Introduction MSA1000 Software Components The following software components are supported on the MSA1000: ■ Array Configuration Utility (ACU) ■ Command Line Interface ■ Insight Manager 7 ■ System Event Analyzer (SEA) Each software tool is discussed in the following paragraphs. Array Configuration Utility (ACU) The ACU is Web based and can run locally through the Windows Internet Explorer browser screen or remotely through Insight Manager 7.
Introduction Table 4: Available Array Configuration Methods by Operating System Operating System Array Configuration Method Windows ACU and CLI Linux ACU and CLI NetWare ACU (offline) and CLI OpenVMS CLI Tru64 UNIX CLI Command Line Interface The Command Line Interface (CLI) is built into the firmware and can be used to configure, manage, and monitor all aspects of the MSA1000, including hard drive array configuration.
Introduction System Event Analyzer (SEA) System Event Analyzer is a host-based fault analysis utility included with the Web-Based Service Enterprise (WEBES) service tools. Each WEBES service tool adds functionality to the Directory, a process (or set of processes) that executes continuously. SEA provides the Director with the capability to capture and interpret hardware events. The analysis of events can be performed automatically or when requested by an outside process.
Operation and Management 2 This chapter describes the operational tasks of managing the MSA1000.
Operation and Management Connecting the Power The power cord should be approved for use in your country. It must be rated for the product and for the voltage and current marked on the product's electrical ratings label. The voltage and current rating of the cord should be greater than the voltage and current rating marked on the product. In addition, the diameter of the wire must be a minimum of 1.02 mm² or 18 AWG. If you are using 18 AWG, your maximum length may be up to 12 feet.
Operation and Management Applying Power Before applying power to the MSA1000, all components of the storage system must be installed and connected to the supported interconnect options. Hard drives should be installed in the MSA1000 so that they can be identified and configured at power up. The MSA1000 components should be powered up in the following sequence: 1. Storage Expansion Enclosures 2.
Operation and Management Interpreting Component Indicators The MSA1000 and each of its components are equipped with a series of indicators. If the fault indicators on any of the MSA1000 components are amber, or if Insight Manager or System Even Analyzer indicates a fault, determine the reason for this alert immediately. Examine the component indicators to see if any indicates a fault.
Operation and Management Table 5: MSA1000 Controller Indicator Descriptions Indicator Function Description 0-2 Busy status These three LEDs are used to progressively represent the processing load on the controller. ON = the controller is idle. OFF = the controller is operating at full capacity. 3-7 Fibre Channel ID Indicates the 5-bit Arbitrated Loop Physical Address (ALPA) assigned to this array controller (not applicable when in fabric mode).
Operation and Management Enclosure Status Indicators The front panel indicators are found on the MSA1000, as illustrated in Figure 11. 1 2 3 Figure 11: Enclosure status indicators WARNING: The system power in the MSA1000 does not shut off completely with the power switch. STANDBY removes power from most of the electronics and the drives, but portions of the power supply and some internal circuitry remain active. To remove the power completely, disconnect all power cords from the equipment.
Operation and Management Power Supply/Blower Assembly Indicators The green indicators on the power supply/blower assembly are on when both the power supply and the blower are operational. When a power supply or blower fault occurs, the power supply indicators go off. If the power supply indicators are off, AC power is not present or there is a complete power supply failure. The power supply-mounted blowers cool the enclosure by circulating air through the enclosure.
Operation and Management SCSI I/O Module with Integrated EMU Indicators The SCSI I/O Module has three indicators. The following figure and table describe their locations and meanings.
Operation and Management Hard Drive Indicators The three disk drive status indicators displayed in the following figure define the operational status of each drive. 1 2 3 Figure 14: Hard drive indicators Look for red Drive Failure indicators on any hot-pluggable drive. If any Drive Failure indicator appears amber, replace that drive as soon as possible. Refer to the section “Replacing Hard Drives,” later in this chapter, for important information on when it is safe to replace drives.
Operation and Management Table 6: Determining Hard Drive Status from Indicator Combinations 46 Activity 1 Online 2 Fault 3 Off Off Off OK to replace the drive online if: The drive is not configured as part of an array, or The drive is configured as an online spare. On Flashing Off Do not remove the drive.
Operation and Management Fibre Channel I/O Module Indicators The Fibre Channel I/O Module has three indicator lights, as illustrated in Figure 15. 2 1 3 Figure 15: Fibre Channel I/O module indicators Item 1 is the Global Status indicator and items 2 and 3 are the Link Status Indicators. If the controller is not installed, the two link status indicators will flash amber. The Global Status indicator and the Link Status indicators are described in separate tables.
Operation and Management Table 8 defines the illuminations of the Link Status Indicators 2 and 3. Table 8: Fibre Channel I/O Module Link Status Indicators 1-Gb Indicator 1 48 2-Gb Indicator 2 Description Off Off A link has not been established since the application of power, initiation of reset, hot-plug of Fibre I/O module, the removal of transceiver or the hot-plug of the transceiver. Green Off A 1-Gb link is active and the status is good.
Operation and Management Replacing Components Caution: It is important to follow these instructions when replacing components in the MSA1000. If the procedure is done improperly, it is possible to lose data or damage equipment. Refer to Appendix B, “Electrostatic Discharge,” for important information on using the proper procedures.
Operation and Management To remove the blower from the power supply: 1. Push in on the two port wine-colored blower tabs 1 while pulling on the blower element 2. See Figure 16 for an illustration. 2 1 1 Figure 16: Replacing the blower Caution: Pressing on the center section of the blower can damage the blades. To prevent this, press only on the outer edge of the blower. 2. Align the new blower’s guidepost 2 with the power supply connector 1.
Operation and Management 4 1 3 2 3 Figure 17: Installing the replacement blower 3. Make sure the following operational blower indications occur: a. The blower starts operating immediately. b. The blower indicator is On.
Operation and Management Replacing a Power Supply Caution: Removing a power supply significantly changes the airflow within the enclosure. The system could shut down because of overheating unless the power supply is replaced within five minutes. Note: Replacement power supply assemblies do not include a variable speed blower. You must remove the operational blower from the defective power supply and install the blower on the new supply. 1.
Operation and Management 3. Install the replacement power supply by lifting up on the power supply module latch 1 and pushing in on the blower base 2 until the assembly is fully seated in the enclosure. 1 2 Figure 19: Installing the replacement power supply 4. Re-connect the AC power cord to the replacement power supply and engage the cord lock.
Operation and Management Replacing a SCSI I/O Module Note: The SCSI I/O Module with an integrated EMU is not hot-pluggable. Before replacing the module all I/O from the servers must be stopped and the MSA1000 must be powered off. 1. Disconnect the SCSI cables from the SCSI I/O module. 1 2 Figure 20: Revoving the SCSI I/O module 2. Press down the port wine-colored release latch 1. 3. Slide the SCSI I/O module 2 straight out.
Operation and Management 2 1 Figure 21: Installing the SCSI I/O module 4. Slide the new SCSI I/O module 1 straight in and make sure it is fully seated. 5. Secure the release latch 2. 6. Reconnect the SCSI cables. 7. Power up the MSA1000 and verify connectivity.
Operation and Management Replacing Hard Drives Caution: To replace a hot-pluggable drive, it is important to follow the guidelines in this section. Failure to do so could result in data loss and could void your warranty. Drive failure is indicated by an amber Drive Failure indicator. RAID 0 is not a fault-tolerant configuration. Never remove a drive from a RAID 0 array unless it has failed. If you are using a RAID 0 configuration, removing an operating drive is not allowed and will result in loss of data.
Operation and Management When a drive fails, the online spare becomes active and begins rebuilding as a replacement drive. After the online spare has completed Automatic Data Recovery (the Online indicators will be continuously lit), replace the failed drive with a new replacement drive. Do not replace the failed drive with the online spare. The system will automatically rebuild the replacement drive and reset the spare drive to an available state.
Operation and Management To replace a drive: 1. Verify the Activity LED indicator is OFF. Hard Drive LEDs are illustrated in Figure 14. 2. Press the ejector 1 and pivot the lever 2 to full open position. 3. Pull the drive partially out of the bay and allow time for the disk to stop rotating. 4. Pull the drive completely out of the storage system drive bay 3. 3 2 1 Figure 22: Opening the drive tray latches 5. On the new hard drive, press the ejector and pivot the lever to a full open position.
Operation and Management 6. Insert the new drive into the same bay as the drive just removed, sliding it in as far as it will go 1. Make sure the ejector lever 2 is in the full open position to ensure a correct latch. 1 2 Figure 23: Inserting the new drive 7. Close the ejector lever against the front of the drive. The locking hinge must be engaged behind the front panel of the unit. 8. Insert the drive completely to ensure that the drive is firmly engaged and that the ejector lever is latched.
Operation and Management Replacing the Fibre Channel I/O Module To remove the Fibre Channel I/O Module: 1. Slide the wine-colored release latch 1 to the right. 2. Slide the Fibre Channel I/O module 2 straight out.
Operation and Management To install the Fibre Channel I/O Module: 1. Slide the Fibre Channel I/O module straight in. Note: When the Fibre Channel I/O module slides into place the release latch should automatically close. 2. Make sure the port wine-colored release latch is secure.
Operation and Management Replacing the MSA SAN Switch 2/8 To remove the MSA SAN Switch 2/8e: 1. Slide the wine-colored release latch 1 to the right. 2. Slide the MSA SAN Switch 2/8 2 straight out.
Operation and Management To install the MSA SAN Switch 2/8: 1. Slide the MSA SAN Switch 2/8 straight in. Note: When the MSA SAN Switch 2/8 slides into place the release latch should automatically close. 2. Make sure the port wine-colored release latch is secure.
Operation and Management Replacing the MSA Hub 2/3 To remove the MSA Hub 2/3: 1. Slide the wine-colored release latch 1 to the right. 2. Slide the MSA Hub 2/3 2 straight out.
Operation and Management To install the MSA Hub 2/3: 1. Slide the MSA Hub 2/3 straight in. Note: When the MSA Hub 2/3 slides into place the release latch should automatically close. 2. Make sure the port wine-colored release latch is secure.
Operation and Management Replacing the 2-Gb Small Form Factor Pluggable (SFP) Transceiver If a transceiver fails, follow this procedure to replace it. It is not necessary to power down the system. WARNING: To reduce the risk of injury from laser radiation or damage to the equipment, observe the following precautions: ■ Do not open any panels, operate controls, make adjustments, or perform procedures to a laser device other than those specified herein. ■ Do not stare into laser beam when panels are open.
Operation and Management Adding Additional Storage Enclosures This section describes how to add single bus enclosures or dual bus enclosures to the MSA1000 storage subsystem. It does not cover adding disk drives to the MSA1000 or to disk enclosures already attached. Older storage systems with high voltage SCSI connections cannot be attached to the MSA1000.
Operation and Management 1 2 Figure 31: MSA1000 expansion SCSI connectors Item Description 1 SCSI Port A (SCSI Bus 2) 2 SCSI Port B (SCSI Bus 3) 5. Attach the SCSI cables to the expansion disk enclosures. Attach the power cords to the power supplies at the rear of the enclosures. Power on each external disk enclosure. 6. Power on the MSA1000 system using the power switch in front of the system. Turn on the host server(s) and allow it to boot. 7.
Operation and Management Adding a New Storage Enclosure New storage enclosures with unconfigured drives are hot-pluggable. The following steps for attaching and installing a new enclosure to an existing MSA1000: 1. Install the new storage enclosure in the rack. Refer to the documentation shipped with the rack for instructions. 2. Attach SCSI cables to the MSA1000 expansion SCSI connectors and the storage enclosure. See Figure 31 for an illustration of the SCSI connectors. 3.
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Regulatory Compliance Notices A Regulatory Compliance Identification Numbers For the purpose of regulatory compliance certifications and identification, your HP StorageWorks MSA1000 is assigned an HP Series number. The Storage System Series number can be found on the product label, along with the required approval markings and information. The product label is located on the right side of the chassis. When requesting certification information for this product, always refer to this Series number.
Regulatory Compliance Notices Canadian Notice (Avis Canadien) This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. European Union Notice Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and the Low Voltage Directive (73/23/EEC) issued by the Commission of the European Community.
Regulatory Compliance Notices BSMI Notice Laser Compliance The SFP Module contains a laser diode of either gallium aluminum arsenide (GaALAs) emitting in the wavelength range of 770-860 nm, or indium gallium arsenide phosphide (InGaAsP) emitting in the wavelength range of 1270-1355 nm. All HP systems equipped with a laser device comply with safety standards, including International Electrotechnical Commission (IEC) 825.
Regulatory Compliance Notices This indicates that the product is classified as a CLASS 1 LASER PRODUCT. Battery Replacement Notice Your MSA1000 is provided with Nickel Metal Hydride batteries. There is a danger of explosion and risk of personal injury if the array is incorrectly replaced or mistreated. Replace only with the HP spare designated for this product. For more information about battery replacement or proper disposal, contact your HP Authorized Reseller or your Authorized Service Provider.
Electrostatic Discharge B To prevent damage to the system, be aware of the precautions you need to follow when setting up the system or handling parts. A discharge of static electricity from a finger or other conductor may damage system boards or other static-sensitive devices. This type of damage may reduce the life expectancy of the device. To prevent electrostatic damage, observe the following precautions: ■ Avoid hand contact by transporting and storing products in static-safe containers.
Electrostatic Discharge Grounding Methods There are several methods for grounding. Use one or more of the following methods when handling or installing electrostatic-sensitive parts: ■ Use a wrist strap connected by a ground cord to a grounded workstation or computer chassis. Wrist straps are flexible straps with a minimum of 1 megohm ± 10 percent resistance in the ground cords. To provide proper ground, wear the strap snug against the skin.
C Specifications This appendix provides operating and physical specifications for the MSA1000. Table 9: MSA1000 Specifications Parameter English Metric Dimensions Height Depth Width 6.9 in 20.5 in 19.0 in 17.5 cm 52.1 cm 48.3 cm 68.8 lb 31.27 kg Input Power Requirements Rated Input Voltage Rated Input Frequency Rated Input Current Input Power (max) 100 to 240 VAC 50 - 60 Hz 7.35 A Max 641 W* 100 to 240 VAC 50 - 60 Hz 7.
Specifications Table 9: MSA1000 Specifications Parameter English Metric Maximum Wet Bulb Temperature Long term storage Short term storage 84.2°F 86°F 29°C 30°C *Input Power and Heat Dissipation specifications are maximum values and apply to worst-case conditions at full rated power supply load. The power/heat dissipation for your installation will vary depending on the equipment configuration.
Recovering from Hard Drive Failure D Caution: Back up all data before removing drives or changing configurations. Failure to do so could result in permanent loss of data. Before moving drives and arrays, run the Array Configuration Utility. The purpose of fault-tolerant configurations on the MSA1000 Controller is to protect against data loss due to drive failure.
Recovering from Hard Drive Failure Hard Drive Failure When a hard drive fails, all logical drives that are in the same array will be affected. Each logical drive in an array may be using a different fault tolerance method, so each logical drive can be affected differently. ■ RAID 0 configurations cannot tolerate drive failure. If any physical drive in the array fails, all non-fault-tolerant (RAID 0) logical drives in the same array will also be failed.
Recovering from Hard Drive Failure Recognizing Drive Failure The indicators on the front of each hard drive are visible through the front of the external storage unit. When a drive is configured as a part of an array and attached to a powered-on controller, the status of the drive can be determined from the illumination pattern of these indicators. Figure 32 and its associated table define the three indicators on the hard drive.
Recovering from Hard Drive Failure There are several other ways to recognize that a hard drive has failed: ■ The amber status indicator will light up on the front of an HP storage system if failed drives are inside. (Other problems such as fan failure, redundant power supply or over-temperature conditions will also cause this indicator to light up.) ■ A front panel display message will list failed drives whenever the system is restarted, as long as the controller detects one or more good drives.
Recovering from Hard Drive Failure Procedure to Attempt Recovery Inserting replacement drives when fault tolerance has been compromised will not improve the condition of the logical volume. Instead, if unrecoverable error messages display on your screen, try the following procedure to recover data. 1. Check for loose, dirty, broken, or bent cabling and connectors on all devices. 2. Turn the entire system off. Remove and then reinsert all hard drives and controllers.
Recovering from Hard Drive Failure Automatic Data Recovery Automatic Data Recovery is an automatic background process that rebuilds data onto a spare or replacement drive when another drive in the array fails. The hard drive that is being rebuilt blinks once per second. If a drive in a fault-tolerant configuration is replaced while the system power is off, a front-panel display message will be displayed during the next system startup. Automatic Data Recovery will be started.
Recovering from Hard Drive Failure Replacing a Drive Replacement drives must have a capacity no less than that of the smallest drive in the array. Drives of insufficient capacity will be failed immediately by the controller before Automatic Data Recovery can begin. Caution: Sometimes, a drive that has previously been failed by the controller may seem to be operational after the system is power-cycled, or (for a hot-pluggable drive) after the drive has been removed and reinserted.
Recovering from Hard Drive Failure If another drive in the array should fail while you are rebuilding a previously failed drive, then fault tolerance has been compromised and all data on the array will be lost, with the following exceptions: ■ In a mirrored (RAID 1) configuration, failure of a drive that is not mirrored to any other failed drives. ■ A second drive failure in a RAID ADG configuration.
Recovering from Hard Drive Failure Moving Array Controller Drives and Arrays Caution: Back up all data before removing drives or changing configurations. Failure to do so could result in permanent loss of data. Before moving drives and arrays, run the Array Configuration Utility. Drives can be moved to other ID positions on the same array controller. You may also move a complete array from one controller to another, even if the Controllers are on different servers.
Recovering from Hard Drive Failure Expanding and Extending Capacity Caution: Back up all data before removing drives or changing configurations. Failure to do so could result in permanent loss of data. Before moving drives and arrays, run the Array Configuration Utility. Array Capacity Expansion is the addition of physical drives to an array that has already been configured.
Recovering from Hard Drive Failure Note: If you are running Windows 2000 with Microsoft Cluster Services (MSCS), logical drive extensions are not recommended. MSCS requires that disks be configured as BASIC in logical disk manager. In order to take advantage of logical drive extension, your drives would have to be configured as DYNAMIC when the volume is initially created.
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Recovery ROM and ROM Cloning E Recovery ROM Each MSA1000 Controller contains ROM (Read-Only Memory), which holds the firmware that operates the controller. The Recovery ROM feature stores two complete firmware images in the ROM: one active image and one backup image. When the controller is powering up, it checks both firmware images to ensure they are valid. If either one is not, the valid image will be copied on top of the invalid image to correct it. This is referred to as auto-flashing.
Recovery ROM and ROM Cloning ROM Cloning Note: In order for a MSA1000 to operate in a redundant controller configuration, it must contain two controllers that are executing the same version of firmware. During power up (or if an optional controller is hot-plugged while the MSA1000 is already operating) the firmware versions on both controllers are compared. If they are not the same, then the ROM Cloning feature will attempt to copy one version of firmware onto the other controller.
SCSI ID Assignments F SCSI IDs are assigned automatically in the MSA1000 drive shelf and any additional attached storage enclosures according to the drive bay used for each drive. The tables in this appendix show the assigned SCSI assignments and the SCSI buses used for each of the drive bays in the MSA1000 and any additional attached storage enclosures. A separate table is present on each page of this appendix.
SCSI ID Assignments SCSI ID Assignments for the MSA1000 Table 10 shows the SCSI ID Assignments for the MSA1000 drive shelf.
SCSI ID Assignments SCSI ID Assignments for Single Bus Storage Enclosures Table 11 shows the SCSI assignments for additional single bus storage enclosures attached to the MSA1000.
SCSI ID Assignments SCSI ID Assignments for Dual Bus Storage Enclosures Table 12 shows the SCSI assignments for an additional dual bus storage enclosure attached to the MSA1000. Table 12: Additional dual bus Storage Enclosure Drive Bay SCSI ID SCSI Bus 1 0 2 2 1 2 3 2 2 4 3 2 5 4 2 6 5 2 7 8 2 8 0 3 9 1 3 10 2 3 11 3 3 12 4 3 13 5 3 14 8 3 Note: When using SCSI Bus 2, use SCSI Port A. When using SCSI Bus 3, use SCSI Port B. .
Index B batteries replacement notice 74 C cables troubleshooting 83 capacity expansion 88 capacity extension 88 Compaq Insight Manager drive failure detection 82 indicating faults 40 MSA1000 Reference Guide Index access control list 28 ACU configuration of hardware 27 adding hard drive to array 88 amber LED 81 array adding hard drives 88 capacity expansion 88 moving 87 array accelerator described 25 features of 25 array configuration methods 27 audience 8 automatic data recovery failure of 84 resources
Index failure, notification 82 failure, replacing drive 85 logical 35 performance 27 physical 27 E electrostatic discharge 75 EMU illustrated 29 indicators 44 enclosure expansion ACU 68 adding enclosures to existing MSA1000 69 attaching SCSI cables 67, 69 direct attached storage 67 installation overview 69 methods of 67 migration overview 67, 95, 96 rack considerations 67 recommended procedures 67 running disk administration utility 68 SCSI connectors, illustrated 68 Ultra3 drives 67 enclosure status indi
Index latches 58, 59 moving 87 online spare 27 recognizing 59 reconstructing 59 removing 58 removing in fault-tolerant systems 56 replacement 21 replacing 85 conditions 21 procedure 58 securing 59 status lights 81 hardware failure 27 help, obtaining 12 hot-plug drive, replacing 85 hot-pluggability definition 21 hp authorized reseller 13 technical support 12 website 13 I I/O rates 27 indicators 19 amber 40 drive access 58 drive tray 47, 59 EMU 44 enclosure status 42 Fibre Channel I/O module 47 interpreting
Index P panels front 39 performance logical drives 27 power applying 39 connecting 38 cord 38 switch 39 system 22 power cords disconnecting 22 MSA1000 38 power supplies adding 30 hot-pluggability 21 illustrated 30 redundant 21, 30 removing power from 22 replacement 21 power supply/blower assembly indicators 43 power switch definition of positions 22 location of 19 prerequisites moving arrays 87 moving hard drives 87 R rack stability, warning 12 rear view features 20 rear view, MSA1000, illustrated 20 rebu
Index T V technical support, hp 12 text symbols 10 transceiver inserting the replacement SFP 66 troubleshooting cabling 83 hard drive problems 81 troubleshooting See also Controller display messages view front of the MSA1000 19 rear of the MSA1000 20 W warning rack stability 12 websites hp storage 13 U unrecoverable disk error message 82 MSA1000 Reference Guide 101
Index 102 MSA1000 Reference Guide
