hp surestore bridge FC 2/1 LV and FC 4/1 HV Part Number: A4689-90011 November 2002 Printed in USA ©Copyright 2002 Hewlett-Packard ©Copyright 2002 Crossroads Systems, Inc.
Edition 5: Notice This document contains information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated into another language. The information contained in this document is subject to change without notice. Printing history New editions of this manual incorporate all material updated since the previous edition. The manual printing date and part number indicate the current edition.
6. Warranty does not apply to defects resulting from (a) improper or inadequate maintenance or calibration, (b) software, interfacing, parts or supplies not supplied by HP, (c) unauthorized modification or misuse, (d) operation outside of the published environmental specifications for the products, or (e) improper site preparation or maintenance. 7.
Updates Reference Standards For the most current version of this manual and other information regarding your HP Surestore Bridge FC 2/1 LV and FC 4/1 HV, visit the HP Customer Care website at: ■ Fibre Channel Physical and Signaling www.hp.com/go/support Typographical conventions and terms Keycap: Menu choices and screens on the library. [Soft Key]: Soft keys to press on the library. Computer Output:Host and SCSI commands.
In this manual Chapter 1 Appendix A assignments for the Ethernet connection. Introduction: Describes the operation of the HP Surestore Bridge FC 2/1 LV and the 4/1 HV, as well as bridge components and supported products. Chapter 2 Overview: Provides an overview Chapter 3 Installation: Describes how to install the bridge, as well as power distribution, connections and configurations.
In this manual hp surestore bridge FC 2/1 LV and 4/1 HV
contents Notice 2 Printing history 2 Warranty 2 Updates 4 Typographical conventions and terms 4 Reference Standards 4 In this manual 5 Chapter 1 Introduction 15 Chapter Overview 15 Operation Indicators 18 Processing SCSI Information 20 HP Surestore Bridge Features 22 Fibre Channel Features 22 SCSI Bus Features 22 Configuration Features 23 Management Features 23 HP Surestore Bridge Benefits 24 Fibre Bridge Components and Supported Products 25 Choosing a Location 28 Physical Specifications 28 Environmental
Chapter 2 Overview 31 Chapter Overview 31 Choosing the Right Configuration 32 Fibre Channel Port Mode 34 Fibre Channel Arbitrated Loop Addressing 35 Hard Addressing 35 Soft Addressing 35 Host Device Configuration 36 SCSI Addressing 37 Buffered Tape Writes 38 Fibre Channel-to-SCSI Mode 39 Address Mapping 40 Indexed Addressing 41 Auto Addressing 42 SCC Addressing 43 Configuration Methods 44 Serial 44 Ethernet 44 Telnet 44 Web Management Interface 45 Chapter 3 Installation 47 Chapter Overview 47 Supported P
Autobaud Feature 65 Installing Cables 66 Fibre Bridge Connection, Basic Configuration Example (Tape Libraries and MO Jukeboxes) 66 Fibre Bridge Connection, Expanded Configuration Example (Tape Libraries Only) 69 Optical Fibre Channel Cables 72 Power Cord Connection 73 Chapter 4 Configurations 75 Chapter Overview 75 Powering on the System 76 Changing the Default Settings 77 Setting Up Serial Port Communications 80 Power-Up Messages for the FC 2/1 LV 81 Power-Up Messages for the FC 4/1 HV 83 Perform Configu
Serial or Ethernet Interface 111 System Utilities 112 System Statistics 113 Event Log 117 Diagnostics Mode 118 SCSI External Wrap Test 119 Trace History 120 Get a Copy of Trace Buffer 120 Reboot 122 Backup/Restore Configuration Settings 123 Download a New Revision of the Firmware 125 Upgrade Firmware 125 Chapter 6 HTTP Interface 129 Chapter Overview 129 Accessing the HTTP Interface 130 Making Changes via the HTTP Interface 131 Main Menu 133 Main Menu > Identity Page 133 Main Menu > Configuration 134 Main
Chapter 8 Troubleshooting 183 Chapter Overview 183 LED Indicators 184 Basic Verification 186 SCSI Bus Configuration 186 Fibre Channel Connection 187 SCSI Devices in Windows NT 187 Device Recognition in HP-UX 188 Configuration 189 Devices 189 Host Configuration 189 HBA Device Driver Information 189 Serial Port Problems 190 Diagnosing Problems 191 Cannot Turn On the Tape Library or MO Jukebox 191 Cannot Turn On the Fibre Channel Switch 191 Cannot Turn On the Fibre Bridge 191 Cannot Confirm the Library or M
Bridge Net Configuration Mode Page (0x21) 220 Bridge Fibre Channel Configuration Mode Page (0x22) 222 SCSI Configuration Mode Page (0x23) 224 SCSI Statistics Mode Page (0x28) 225 PRLI Data 228 Appendix C Addressing, Structures and Operation 229 SCC Addressing Option 232 SCSI Initiators to Fibre Channel Targets 233 Appendix D Enabling DHCP 235 Setting up DHCP over Bridge Interfaces 237 Serial and Telnet Interfaces 237 Ethernet Configuration 239 Ethernet IP Address, Subnet Mask, and Gateway Address 241 HT
1 Introduction Chapter Overview This chapter contains information on the following: ■ Operation Indicators on page 18 ■ Processing SCSI Information on page 20 ■ HP Surestore Bridge Features on page 22 ■ HP Surestore Bridge Benefits on page 24 ■ Fibre Bridge Components and Supported Products on page 25 ■ Choosing a Location on page 28 ■ Fibre Channel Configurations on page 29 The HP Surestore FC 2/1 LV and 4/1 HV bridges provide connectivity between a Fibre Channel (FC) point-to-point (PPP),
Figures 1, 2 and 3 show typical FC-to-SCSI configurations. By using the bridge, any host on the FC fabric can access the tape drive and library or magneto-optical jukebox on each SCSI bus.
Chapter 1 Figures 4 and 5 show the back panels of the 2/1 LV and 4/1 HV bridges. Figure 4 Back Panel of the HP Surestore Bridge FC 2/1 LV Figure 5 Back Panel of the HP Surestore Bridge FC 4/1 HV SCSI and Fibre Channel connectors can be found on the back panel. Ethernet and serial ports provide the means for configuration and management. The LED indicators (operation indicators) provide basic status information. A power connector and power switch are located on the back panel.
Operation Indicators The bridge is equipped with back panel LED indicators for monitoring overall status. Figure 6 HP Surestore Bridge FC 2/1 LV LED Indicators The LED functionality of the FC 2/1 LV is as follows: 18 Operation Indicators ■ Power - This green indicator turns on when power is applied to the bridge. ■ Fault - This green indicator illuminates during power-on self test (POST), then remains dark unless the bridge experiences a processor problem.
Chapter 1 Figure 7 HP Surestore Bridge FC 4/1 HV LED Indicators The LED functionality of the FC 4/1 HV is as follows: ■ Power - This green indicator turns on when power is applied to the bridge. ■ Fault - This green indicator illuminates during power-on test (POST), then remains dark unless the bridge experiences a processor problem. ■ Fibre Channel - This green indicator signifies Fibre Channel activity when lit. ■ Ethernet - This green indicator signifies Ethernet activity when lit.
Processing SCSI Information The following section describes how the bridge processes SCSI information when attached to FC hosts. (See Figure 8 on page 21.) 1. A FC host issues a command. The FC host encapsulates the command in the FC protocol and sends the packet to the bridge. 2. The FC controller in the bridge receives the packet, interprets the FC information, and places the packet in buffer memory. 3.
Information Processing Figure 9 Flow of Data and Responses Chapter 1 Chapter 1 Figure 8 Processing SCSI Information 21
HP Surestore Bridge Features Fibre Channel Features ■ Fibre Channel target mode ■ Single 1.0625 Gbps FC port ■ Fibre Channel arbitrated loop (FC-AL) and switched fabric (FC-SW) topologies, includes point-to-point (PPP) configurations ■ Private Loop Direct Attach (PLDA) profile compliant ■ Class 3 connection with SCSI-FCP protocol ■ Supports FCP-2 error recovery protocol as specified in FCP-2 rev.
Chapter 1 Configuration Features ■ DHCP for easier network administration ■ Serial DB-9 connector for terminal access ■ Ethernet RJ-45 connector for FTP, Telnet and Web browser access ■ Field-upgradeable firmware ■ SCC (SCSI only), indexed, and automatic addressing modes Management Features Chapter 1 ■ Out-of-band Ethernet TCP/IP management access ■ In-Band management HP Surestore Bridge Features 23
HP Surestore Bridge Benefits Table 1 lists the HP Surestore Bridge benefits. Table 1 Benefits Benefit Description Interoperability The FC 2/1 LV and FC 4/1 HV operate in numerous configurations proven in the lab. Compatibility The bridge enables existing storage to be moved to a central location to improve security, simplify management and lower Total Cost of Ownership. Connectivity Fibre Channel storage networks with SCSI devices can share data and increase address space.
Chapter 1 Fibre Bridge Components and Supported Products This section includes a list of all parts supplied with the bridge, products that Hewlett-Packard supports for use with the bridge, environmental considerations, and sample system configurations. Table 2 lists the supplied parts for the FC 2/1 LV. Table 3 on page 26 lists the supplied parts for the FC 4/1 HV.
Table 2 Supplied Components for the FC 2/1 LV Item Qty Description Serial cable 1 10 foot DB-9 to DB-9 null-modem serial cable. Ethernet crossover cable 1 Ethernet cable for service personnel use only (not to be connected to an Ethernet Hub). For troubleshooting and configuration purposes only. Read-Me contents sheet 1 Box contents description. Safety & Regulatory statement 1 Safety & Regulatory statement. French statement 1 A French regulatory requirements statement.
Chapter 1 Table 3 Supplied Components for the 4/1 HV Item Qty Description Stick-on rubber feet 4 Rubber pads for the bottom of the Fibre bridge. (Not required for rackmount installation.) Serial cable 1 10 foot DB-9 to DB-9 serial cable, included for troubleshooting and reconfiguration purposes only. Ethernet crossover cable 1 Ethernet cable (For service personnel use only between bridge and laptop computer, not to be connected to an Ethernet Hub).
Choosing a Location Physical Specifications The FC 2/1 LV and FC 4/1 HV can be placed on a desktop or mounted into a standard 19-inch rack, depending on the specific requirements of the installation. The physical characteristics are as follows: Table 5 Physical Specifications of the Fibre Bridge Height 1.7 inches (4.2 cm) Width 16.9 inches (42.9 cm) Depth 9 inches (22.8 cm) Physical package weight Approximately 7 pounds (3.
Chapter 1 Fibre Channel Configurations The bridge is supported in a basic configuration using the 10/180 and 20/ 700 HP tape libraries and magneto-optical jukeboxes. A basic configuration is comprised of only one bridge and a host. Expanded configurations may include multiple bridges, switches and hosts, usually connected to one or more networks. Basic Configuration Figure 10 shows the bridge in a basic configuration for the FC 2/1 LV.
Expanded Configuration Figure 12 shows the bridge in an expanded configuration for the FC 2/1 LV. Figure 13 shows the bridge in an expanded configuration for the FC 4/1 HV.
2 Overview Chapter Overview This chapter contains information on the following: ■ Choosing the Right Configuration on page 32 ■ Fibre Channel Arbitrated Loop Addressing on page 35 ■ Host Device Configuration on page 36 ■ SCSI Addressing on page 37 ■ Buffered Tape Writes on page 38 ■ Fibre Channel-to-SCSI Mode on page 39 ■ Address Mapping on page 40 ■ Configuration Methods on page 44 The bridge can be configured through one of several user interfaces: ■ Over a Serial port via a terminal or
Choosing the Right Configuration The factory default settings of the bridge permit the type of configuration shown in Figure 14 to work without any initial changes to settings in the bridge. The bridge settings may need to be changed for complex configurations or certain application requirements.
Figure 15 FC 4/1 HV Configuration for Use in a 20/700 Tape Library Chapter 2 Chapter 2 Choosing the Right Configuration 33
A typical configuration may involve several Fibre Channel hosts connected to multiple FC bridges in a tape library. These Fibre Channel host systems may be connected to the bridges either in a point-to-point (PPP) fashion or through a Fibre Channel switch. Each bridge is then connected to multiple SCSI tape drives plus the SCSI robotics controller via its SCSI buses.
Fibre Channel Arbitrated Loop Addressing Hard addressing is recommended for FC-AL environments where it is important that the FC device addresses do not change. Device address changes can affect the mapping represented by the host operating system to the application. An example of such an environment would be a tape library installation, where the application configuration requires fixed device identification for proper operation.
Host Device Configuration The host system using a Fibre Channel host bus adapter (HBA) will typically map Fibre Channel devices into the existing device mapping scheme used by that operating system. (Refer to the HBA manual for the mapping table.) The Fibre Channel HBA usually maps Fibre Channel AL_PAs to SCSI target addresses. The HBA will claim enough SCSI bus entries to allow for 125 Fibre Channel targets to map to SCSI bus:target entries. This is usually done by a fixed mapping of AL_PA to bus:target.
SCSI Addressing The bridge provides the capability to reset SCSI buses during the bridge boot cycle. The feature is enabled in the default configuration, but should be disabled for configurations using multiple SCSI initiators or devices that have long reset cycles or are adversely affected by bus resets. The bridge negotiates for the maximum values for transfer rates and bandwith on a SCSI bus.
Buffered Tape Writes Buffered Tape Writes is an option designed to enhance system performance. By returning status on consecutive write commands prior to the tape device receiving data, Buffered Tape Writes remove the latency of waiting for responses from the tape device. In the event that data does not transfer correctly for any reason, the bridge will return a check condition on a subsequent command. Commands other than Write(6) are not issued until status is received for any pending write.
Fibre Channel-to-SCSI Mode This section describes the configuration of the bridge when acting as a target to a Fibre Channel initiator passing Fibre Channel protocol (FCP) requests through to SCSI target devices. The bridge automatically detects if it is connected to a FC loop or a switch and will use the appropriate protocol without further configuration. Chapter 2 Fibre Channel-to-SCSI Mode 39 Chapter 2 By default, the bridge is in this mode.
Address Mapping The bridge supports three addressing methods for mapping SCSI targets to Fibre Channel initiators (hosts): ■ Indexed Addressing - Allows editing and maintenance of a static address mapping table. ■ Auto Addressing (default setting) - Automatically creates a new address mapping table every time the bridge is power cycled. ■ SCC Addressing - Implements the SCSI-3 controller commands SCSI storage array addressing to address SCSI devices attached to the bridge.
Indexed Addressing Indexed addressing allows for Fibre Channel host bus adapters to access SCSI devices attached to the bridge. This is done by using a table which is indexed by sequential FCP LUN values, indicating selected bus:target:LUN devices. Table 7 Example of Indexed Addressing Table Chapter 2 SCSI BUS:TARGET:LUN 0x00 0:0:0 0x01 0:1:0 0x02 0:2:0 0x03 0:3:0 0x04 0:4:0 0x05 0:5:0 0x06 0:6:0 0x08 0:8:0 (...) (...) 0x0E 0:15:0 0x0F 0:0:1 0x10 0:1:1 (...) (...
The indexed addressing table has the structure shown in Table 7 on page 41. The bridge will allow up to 80 device entries to be mapped. The index table can be manually edited and is then saved to the bridge FLASH memory. The Configuration menu has options allowing the table to be filled in order of increasing bus, target ID, or LUN, as may be desired for the specific requirements needed.
SCC Addressing The bridge also implements the SCSI-3 controller commands (SCC) (X3T10 Project 1047D Revision 6b 01-July-96) SCSI storage array addressing to address SCSI devices attached to the bridge. The access method used is the SCC logical unit addressing method. Chapter 2 Address Mapping 43 Chapter 2 In SCC addressing mode, the bridge will respond to FCP commands as a SCC controller device. A subset of the SCC behavior is implemented.
Configuration Methods The bridge can be configured over the serial port via a terminal, terminal emulation utility or over Ethernet via a Telnet utility, or Internet Web browser. FTP and TFTP are also supported on Ethernet to upgrade firmware revisions. Serial The serial port allows for configuration of device characteristics from an attached terminal or terminal emulator. For instructions on use of the serial interface, see Serial Port Connection on page 64.
2. At the ‘>’ prompt, enter the following command: TELNET where is the IP address of the bridge. This will start a Telnet session for the bridge. On Windows NT, a separate Telnet session window will appear. 4. Access configuration options the same way you would for the serial interface. 5. To exit the Telnet session on HP-UX, simply close the window. On Windows NT, you may select the disconnect option from your Telnet client utility.
46 Configuration Methods Chapter 2
3 Installation Chapter Overview This chapter contains information on the following: ■ Supported Products on page 48 ■ Installing the HP Surestore Bridge on page 50 ■ Power Distribution Unit Installation (PDU) on page 58 ■ Interfaces and Connections on page 61 ■ Installing Cables on page 66 Chapter Overview 47
Supported Products Table 8 lists products that Hewlett-Packard supports when connecting the bridge to tape libraries and magneto-optical jukeboxes. Note Table 8 The contents of Table 8 and Table 9 on page 49 change frequently. Contact HP for the current list of supported products.
Table 9 ■ DLT 7000 tape drives are only supported in the 20/700 tape library. ■ The A3636A, A3591B and the A3404A FC HBA are only supported in point-to-point configurations (not through a switch). ■ HVD SCSI tape drives (DLT 7000, DLT 8000, 9840, and the HVD version of Ultrium) should only be attached to SCSI ports on the FC 4/1 HV (NOT the FC 2/1 LV). ■ The HVD SCSI robotics controller port of the A5617A and A5597A tape library may be connected to a free SCSI port on the FC 4/1 HV.
Installing the HP Surestore Bridge This section describes how to install the bridge, including factors to consider when unpacking the bridge for the first time. The bridge can be setup as either a desktop or rackmount installation and can be connected to different types of devices. Note Please read this chapter carefully and completely before working with the bridge. Before physically installing the bridge, consider the location, intended use, and the type of devices to which the bridge will be attached.
Unpacking the Box Unpack the bridge shipping container using the following instructions: 1. Select a location that ensures the front intake vents and back fan vent are clear of obstructions so air can flow freely through the bridge. 2. Remove all items from the shipping container. Check each one for damage. Keep the bridge in the protective bag until you are ready to install it. 3. Refer to the packing slip or contents list to make sure you received all the equipment you ordered.
Installing the HP Surestore Bridge into a Rack Installing the bridge into a rack requires assembling L-brackets to the bridge and then mounting the L-brackets to a rack. L-brackets allow the bridge to be mounted in a fixed position in the back of a rack. Note All connections, displays and functionality of the bridge are located on the back, allowing it to be mounted toward the back of a rack. Front access is not necessary.
Before you begin, verify you have the assembly components listed in Table 10. Table 10 Assembly Components for the FC 2/1 LV Item Quantity Description 1 #2 Phillips screwdriver (not included). Mounting brackets 1 pair (left and right bracket) Right and left L-bracket for mounting the Fibre bridge into a rack. Rackmount screws and clip nuts 1 package (includes extra parts) ■ Four 6-32 0.375 inch screw pan head pozidrive with lock washers (for mounting Lbrackets to the bridge). ■ Four 10-32 0.
Table 11 Assembly Components for the FC 4/1 HV Item Quantity Description Tool 1 #2 Phillips screwdriver (not included). Mounting brackets 1 pair (left and right bracket) Right and left L-bracket for mounting the Fibre bridge into a rack. Rackmount screws and clip nuts 1 package (includes extra parts) ■ Six 6-32 screws with lock-washers for mounting the Fibre bridge to L-brackets. ■ Six 10-32 screws with six clip nuts for installing the L-brackets with Fibre bridge into a rack.
How to Assemble the L-brackets to the Fibre Bridge 1. Facing the back of the bridge, position the first L-bracket with the mounting tab toward the back of the rack and pointing away from the bridge, as shown in Figure 18. 2. Insert the 6-32 screws through the second and fourth holes from the mounting tab and tighten (see Figure 18). 3. Follow the same procedure for the second L-bracket.
Installing the Fibre Bridge in the Rack Note The bridge is mounted into the back of the rack, front access to the bridge is not required. 1. Facing the back of the rack, install a total of four clip nuts, two on the left rail and two on the right rail, above any existing product. 2. Install the clip nuts so that the top nut aligns with the top hole of the L-bracket and the bottom clip nut aligns with the bottom hole (see Figure 19 on page 57).
Figure 19 Mounting the Fibre Bridge in a Rack Chapter 3 Chapter 3 Installing the HP Surestore Bridge 57
Power Distribution Unit Installation (PDU) PDU Installation in the 20/700 Tape Library Note The power distribution units (PDUs) may be different for the FC 2/1 LV and 4/1 HV. The PDU ordered with the FC 4/1 HV may have only seven outlets, the PDU for the 2/1 LV has ten outlets. Either PDU can accommodate both the FC 2/1 LV and the FC 4/ 1 HV bridges. Note The power distribution unit (PDU) for the 20/700 must have the outlets facing up when using either the FC 2/1 LV or the FC 4/1 HV.
Figure 20 Power Distribution Unit Installation in the 20/700 Tape Library 4. Connect the power cables from the devices to the PDU. 5. When connecting the PDU to the main power cable, secure the cable with the clamp. Plug the main cable into the wall outlet. Verify that the current capacity of the wall circuit to be used will not be exceeded by the additional devices. 6. Do not power on the bridge(s) until the SCSI devices are connected.
PDU Installation in the 10/180 Tape Library 1. The PDU should be mounted in the bottom back of the rack. The outlets on the PDU should face the back of the tape library. The power inlet should be positioned on the right-hand side as you look at the back of the library. 2. Attach the PDU to the holes in the left and right rails with the Torx screws and hex nuts (see Figure 21 on page 60). 3. Tighten the screws to force the star washers to pierce the paint and make solid contact with the metal column.
Interfaces and Connections There are four types of data interfaces to the bridge. ■ Fibre Channel ■ SCSI ■ RS-232 (serial port) ■ Ethernet The RS-232 and Ethernet ports are used primarily for bridge configuration and management.
Fibre Channel Connection Note Failure to correctly configure a Fibre Channel (FC) device may impair the operation of the storage area network (SAN) to which it is attached. Before connecting the bridge to other Fibre Channel devices, it is important to understand the configuration requirements of the environment to which it will be connected. Typical installations will have the bridge connected to either a host Fibre Channel HBA, arbitrated loop, or switched fabric environment.
Figure 24 SCSI LVD/SE LVD/Single-Ended SCSI support is indicated by this symbol on the back of the FC 2/1 LV. Figure 25 SCSI DIFF (HVD) The bridge supplies termination power (TERMPWR) to each SCSI bus. An internal self-resetting fuse is in the TERMPWR circuit and will reset after a fault is cleared. Chapter 3 Interfaces and Connections 63 Chapter 3 Differential (HVD) SCSI support is indicated by this symbol on the back of the FC 4/1 HV.
Ethernet Connection 10/100 BaseT Ethernet connectivity provides enhanced management and configuration capabilities. The RJ-45 connector on the bridge can be directly connected to a standard 10/100 BaseT Ethernet network. Configuration is required to set the IP network address to allow for use of the configuration capabilities of this port. The IP network address can be manually or dynamically assigned using DHCP. Refer to Ethernet on page 92 for details on setting the IP network address.
Autobaud Feature The autobaud feature automatically configures the baud rate on the bridge. Once you set the baud rate in the terminal emulation program, wait until the bridge completes the power-on self test (POST) and then the firmware initialization process. This can take up to 90 seconds. Press the [Enter] key slowly 7 or 8 times and the bridge will automatically detect the baud rate. The baud rate is then saved in the bridge’s configuration and will be retained through future power cycles.
Installing Cables The bridge can be used in either basic or expanded system configurations. This section provides the steps to install cables in both configurations. Fibre Bridge Connection, Basic Configuration Example (Tape Libraries and MO Jukeboxes) Caution Be sure all devices in the configuration have been turned off and disconnected from the power source before making SCSI connections. Failure to disconnect all power could result in damage to the devices.
Note A basic point-to-point (PPP) configuration is one HBA to one bridge. Note All SCSI targets in an MO jukebox must be connected to a single bridge using a single SCSI connection. SCSI targets in a two-bus MO jukebox may be connected using a double SCSI connection. 3. Connect one end of the optical cable into the GBIC on the bridge and the other end into the Fibre Channel HBA in the host (the HBA may also require a GBIC). 4. Connect the power cord from the bridge to a power strip in the library. 6.
Figure 27 Fibre Bridge Connection, Basic Configuration for the FC 4/1 HV Figure 28 Fibre Bridge Connection, Basic Configuration for the MO Jukebox 68 Installing Cables Chapter 3
Fibre Bridge Connection, Expanded Configuration Example (Tape Libraries Only) Note This configuration is not supported for MO jukeboxes. Caution Failure to turn off all power could result in damage to attached devices. 1. Properly shut down all peripheral SCSI devices that will be connected to the bridge. 3. Use the LVD converter (HP A6324A) to connect the library’s robotics controller to a LVD SCSI bus. 4. You may daisy chain additional tape drives together, but this may result in performance loss.
Figure 29 Fibre Bridge Connection, Expanded Configuration FC 2/1 LV(Minimum) Figure 30 Fibre Bridge Connection, Expanded Configuration FC 2/1 LV(Maximum) 70 Installing Cables Chapter 3
Figure 31 Fibre Bridge Connection, Expanded Configuration FC 4/1 HV(Minimum) Figure 32 Fibre Bridge Connection, Expanded Configuration FC 4/1 HV(Maximum) Chapter 3 Chapter 3 Installing Cables 71
Figure 33 Fibre Bridge Connection, Point-to-Point Configuration Optical Fibre Channel Cables The bridge uses the fiber-optic cables listed in Table 13 with the A5225A SW Optical/GBIC.
Power Cord Connection The power cord shipped with the bridge is a 120 VAC three-conductor power cord for use specifically with the power distribution unit (PDU) shipped with the bridge. If you are planning to use another input voltage or if you plan to use the bridge in applications other than the supported libraries, you must supply your own power cord. To connect the power cord to the bridge: 1. Make sure the bridge’s power switch is in the off position. 2.
74 Installing Cables Chapter 3
4 Configurations Chapter Overview ■ Powering on the System on page 76 ■ Changing the Default Settings on page 77 ■ Setting Up Serial Port Communications on page 80 ■ Power-Up Messages for the FC 2/1 LV on page 81 ■ Power-Up Messages for the FC 4/1 HV on page 83 ■ Perform Configuration on page 85 Because the various configuration methods of the bridge offer such similar functionality, this chapter will describe specific configuration options from the perspective of the serial interface only.
Powering on the System The bridge is configured for most Fibre Channel installations without intervention. The basic configuration uses one bridge connected directly to a Fibre Channel host bus adapter (HBA) within a host computer. In expanded configurations, the bridge may be connected to either a Fibre Channel HBA or a Fibre Channel switch or hub. ■ Before powering-on the bridge, make sure that each SCSI device is powered-on and configured to communicate over SCSI.
Changing the Default Settings In most cases, the default bridge configuration settings will be appropriate for operation in a tape library or MO jukebox. Table 14 on page 77 below lists the key Fibre Channel (FC) and SCSI default settings. These were chosen to provide broad connectivity to a variety of operating systems and HBAs. The default bridge configuration assumes there is only one bridge connected to a HBA.
Using the serial cable is not necessary in most installations. The default settings work in most configurations. Use the serial cable only if one of the following situations occurs: ■ The default configuration must be changed. ■ A failure has occurred that required diagnostic procedures (see Chapter 8, “Troubleshooting”). If any of these scenarios occur, attach the serial cable as shown in Figure 37 on page 79. 1. Plug one DB-9 connector into the bridge. 2.
Figure 37 Connecting the Serial Cable Table 14-1 Fibre bridge 2 DB-9 connector 3 Serial cable 4 DB-9 connector Chapter 4 Chapter 4 1 Changing the Default Settings 79
Setting Up Serial Port Communications Leave the bridge turned off until you have set up serial port communications with your host computer, unless serial I/O was previously established and is currently running. The bridge is designed to communicate with a terminal or any operating system utilizing a terminal emulator. For example, Windows 9x and NT 4.0 operating systems can use Hyperterminal. Be sure the baud rate, data bits, stop bits, parity, and flow control are set correctly.
Power-Up Messages for the FC 2/1 LV When you press the bridge’s power switch to the on position (marked with a ‘1’ symbol), a series of messages similar to the following appear on the terminal or terminal emulation program: Firmware X.
The main menu appears as follows: HP Surestore Bridge FC 2/1 LV Version X.X XXXX 1) 2) 3) 4) 5) Perform Configuration System Utilities Display Trace and Assertion History Reboot Download a New Revision of The Firmware Command > The main menu allows for various operations to be performed on the bridge. Option 1) is described below. For information on options 2) through 5), see Chapter 5.
Power-Up Messages for the FC 4/1 HV When you press the bridge’s power switch to the on position (marked with a ‘l’ symbol), a series of messages similar to the following appear on the terminal or terminal emulation program: Firmware X.
Note If you do not see messages on your screen, re-check your computer’s serial port settings and press [Enter] 5 or 6 times. In particular, make sure the baud rate is set to one of the values listed in Table 15 on page 80. The main menu appears as follows: HP Surestore Bridge FC 4/1 HV Version X.
Perform Configuration The Perform Configuration menu allows the administrator to configure various options on the bridge. For most configuration changes to take effect, you must reboot the bridge (see System Utilities on page 112). Note Menus are not case sensitive. You can enter uppercase and lowercase characters interchangeably when menus indicate letters as choices. Configuration Menu Version X.
Baud Rate This menu changes the baud rate used on the serial port. Select 1) - 5) for the appropriate baud rate setting. If you are using the autobaud feature, it may not be necessary to set a baud rate. See Autobaud Feature on page 65 for more information. Baud Rate Configuration Menu Version X.X XXXX 1) * 9600 3) 38400 5) 115200 2) 19200 4) 57600 X) Return to previous menu The asterisk (*) symbol indicates the current setting for the baud rate.
Note For In-Band Management to be operational, World Wide Name (WWN) schemes MUST be compliant with IEEE Fibre Channel Format 1, where the left-most hexadecimal character (the NAA field) of the WWN is ‘1’. Further, the upper nibble of the third byte (the sixth hexadecimal value from the right) must be a value of ‘0’ or ‘1’. ■ Select 1) to enter a new value for the World Wide Name High. Ordinarily, this value should not be changed. ■ Select 2) to enter a new value for the World Wide Name Low.
■ Select 4) to toggle the FC Port Mode. — Auto Sense - Soft AL_PA: In this mode, the bridge FC port tries to come up as a loop and if not successful then tries to come up as a fabric. If the port comes up as a loop, it then determines whether it’s on a private or public loop. — N_Port: In this mode, the bridge’s FC port skips trying to come up as a loop and instead tries coming up as a fabric only. If the bridge is on a loop and N_Port mode is selected, an error in communication may occur.
SCSI This menu allows for setting the SCSI attributes. SCSI Configuration Menu Version X.
SCSI Configuration Menu Version X.
■ Select 4) to toggle the SCSI reset operation between YES and NO. When set to YES, the bridge will automatically reset each SCSI bus after initial power-up and after reboots. ■ Select 5) to change the discovery delay time for SCSI devices. This is the time that the bridge waits after a power-up or reboot before starting to discover SCSI devices. This value should be set to no less than 250 ms, according to the SCSI standard for reset-to-selection time.
Ethernet This option allows for setting up all Ethernet network settings including IP address, subnet mask, IP gateway, Ethernet mode, physical address, and host name. Ethernet Configuration Menu Version X.X XXXX Ethernet Physical Address IP Address Subnet Mask Hostname IP Gateway Ethernet Mode 1) 2) 3) 4) 5) 6) 7) 8) 9) :08:06:07:05:03:09 :1.1.1.1. :255:255:255.0 : :0.0.0.
■ Select 7) to change the host name. This is an alphanumeric entry of one word up to 8 characters long. ■ Select 8) to toggle the Ethernet mode among the following options: 10Mps Only 100Mps (half duplex) only 100Mps (full duplex) only 10/100Mps (auto-neg) ■ Select 9) to toggle the DHCP setting. When DHCP is enabled, this activates Dynamic Host Configuration Protocol and allows the bridge to be assigned a dynamic IP address from a DHCP server located on the Ethernet network used by the bridge.
depending on the DHCP server being used, it is recommended you contact your Network Administrator for assistance.
Fibre Channel-to-SCSI Mapping This option allows selecting the addressing mode of the bridge, as well as displaying attached devices when using the bridge in initiator mode. The menu to modify the indexed addressing table is also accessed through this menu. The current mapping appears when option 5) is selected from the following menu. Fibre Channel to SCSI Configuration Menu Version X.
Indexed addressing presents the user a table with the current mappings. The user can then select a table entry by FCP LUN and specify the associated bus:target:LUN. Auto-assigned addressing fills the table with one of multiple prioritizing schemes or with the currently attached SCSI devices. LUN priority - fills the table according to ascending LUN order. Target ID priority - Fills the table according to ascending SCSI target ID (SCSI device address ID) order.
Fibre Channel to SCSI Mapping Table Version: X.X XXXX Link Up FC_LUN -> 0X01 -> 0X02 -> 0X03 -> 0X03 -> 0X04 -> 0X05 -> 0X06 -> 0X07 -> 0X08 -> 0X09 -> 0X0A -> 0X0B -> 0X0C -> 0X0D -> 0X0E -> 0X0F -> TGT 0 1 - LUN 0 0 - Chapter 4 0X00 BUS 0 0 - Enter LUN entry to change, F to fill, X to return, for more > Existing LUN entries can be edited by specifying the LUN numbers to be changed. The LUN numbers are entered as two-digit values.
The mapping table can also be filled by entering an ‘F’ at the command prompt. The following menu will appear. Full Fibre Channel to SCSI Mapping Table Version X.X XXXX 1) 2) 3) 4) 5) 6) Flat, LUN Priority Flat, Target ID Priority Flat, Bus Number Priority Ordered, LUN Priority Ordered, Target ID Priority Ordered, Bus Number Priority X) Return to previous menu Flat - This option sets all Fibre Channel LUN values in ascending order. Use this option when you have multiple devices using different IDs.
SCSI-to-Fibre Channel Mapping The SCSI to Fibre Channel operating mode is not supported for use within a tape library or MO jukebox. You will not need to change or use this setting under the menu item. Utility Settings This option allows selecting Trace or Event settings. Utility Settings Version X.X XXXX 1) Trace Settings Configuration 2) Event Settings Configuration X) Return to previous menu ■ Select 1) to access the Trace Settings menu. ■ Select 2) to access the Event Settings menu.
Enter a level number from the Trace Settings that are shown. This toggles the current setting to either ON or OFF. Event logging captures up to the last 215 events and then starts overwriting the log when full.
Event Filter This option allows selecting the Event Threshold for filtering event logging. The asterisk denotes the current setting. Event Filter Settings Version X.X XXXX 1)*Log All Events 3) Error Events 2) Disable Event Logging 4) Notify Events U) Update Current Operating Trace Levels X) Return to previous menu Enter Event Threshold <1-4> > ■ Enter 1 to log all events. ■ Enter 2 to disable event logging. ■ Enter 3 to log Error Events only. ■ Enter 4 to log Notify Events only.
Save This option saves the current configuration state in FLASH, which updates the previously saved configuration state. Saved changes are retained across future device resets or power cycles. Restore Last Saved This option restores the most recently saved configuration. This can be useful when configuration changes are made, but the user wishes to return to the previously saved configured state.
Active Fabric The Active Fabric Configuration menu allows for enabling/disabling the Server-Free Backup Mode and for configuring the number of controller LUNs visible to an operating system communicating with the bridge. Current active fabric configuration indicates whether server-free back-up mode is enabled as well as the number of controller LUNs being used by the bridge. Active Fabric Configuration Menu Version X.
104 Perform Configuration Chapter 4
5 Management Operations Chapter Overview This chapter contains information on the following: ■ Management Interfaces on page 107 ■ Serial or Ethernet Interface on page 111 ■ System Utilities on page 112 ■ System Statistics on page 113 ■ Event Log on page 117 ■ Diagnostics Mode on page 118 ■ Trace History on page 120 ■ Reboot on page 122 ■ Backup/Restore Configuration Settings on page 123 ■ Download a New Revision of the Firmware on page 125 Chapter Overview 105
The FC 2/1 LV and the FC 4/1 HV can be managed through several user interfaces: ■ Over the serial port via a terminal or terminal emulation utility ■ Over Ethernet via a Telnet utility, or Internet Web browser. Further, FTP support provides additional management functionality. Before attempting to configure the FC 2/1 LV or FC 4/1 HV, a basic understanding of Fibre Channel and SCSI devices is recommended.
Management Interfaces The FC 2/1 LV and FC 4/1 HV can be managed over the serial port via a terminal or terminal emulation utility or over Ethernet via a Telnet utility, or Internet Web browser. FTP support provides additional management functionality. Serial The serial port allows for configuration of bridge settings from an attached terminal or terminal emulator. For instructions on use of the serial interface, refer to Serial or Ethernet Interface on page 111.
This setup can be useful for remote management of the bridge via Telnet, the HTTP (web browser) interface, or any of the other remote interfaces. Because the method of setting up a lease reservation varies depending on the DHCP server being used, it is recommended you contact your Network Administrator for assistance. For more information about enabling DHCP on the FC 2/1 LV and FC 4/1 HV, see Appendix D. Telnet The FC 2/1 LV and FC 4/1 HV is capable of holding Telnet sessions for management purposes.
4. Access menu options in the same way used for the serial interface. 5. To exit the Telnet session, select the [Disconnect] option from your Telnet client utility. In most Telnet utilities, this option is available as a menu item. Web Management Interface The FC 2/1 LV and FC 4/1 HV allows any standard Internet Web browser to view and change the FC 2/1 LV and FC 4/1 HV's configuration. Information is dynamically generated in an HTML format by the FC 2/1 LV and FC 4/1 HV so that Web browsers can access it.
commands, they must be sent to the Controller LUN of the FC 2/1 LV and FC 4/1 HV bridge. For more information, see Appendix B, Controller LUN Commands.
Serial or Ethernet Interface The screens shown in this section are available through the serial interface or the Ethernet interface when a Telnet session is used. In either of these cases, the menu structure is the same. A web management interface is also available (see Chapter 6. From the serial interface, access the main menu. HP Surestore Bridge FC 4/1 HV X.
System Utilities System Utility Menu X.X XXXX 1) System Statistics Menu 2) Event Log 3) Enter System Diagnostics Mode X) Return to main menu 112 System Utilities ■ Select 1) to display the System Statistics menu, (see below). ■ Select 2) to display the Event Log menu, (see Event Log on page 117). ■ Select 3) to enter diagnostics mode. A confirmation message will appear verifying you want to do this. If you enter [N] for NO, you are returned to the System Utilities menu.
System Statistics System Status/Statistics Menu Version 1.0 XXXX 1) 2) 3) 4) 5) Display Display Display Display Display Fibre Channel Status Attached Fibre Channel Devices SCSI Statistics Attached SCSI Devices Router/Bridge Statistics X) Return to main menu ■ Select 1) to display Fibre Channel status information. LinkState is the current FC link status. AL_PA is the arbitrated loop physical address. InDevDataSeqs is the number of device Data sequences received by this port.
OutP_RJTFrame is the number of P_RJT frames transmitted by this port. Out_PRJTFrame is the number of P_RJT frames transmitted by this port. LinkDowns is the number of Link Down conditions detected. InABTSs is the number of ABTS frames received. OutABTSs is the number of ABTS frames transmitted. LaserFaults is the number of laser faults detected. SignalLosses is the number of times Loss of Signal was detected. SyncLosses is the number of times Loss of Sync. was detected.
■ Select 3) to display SCSI statistics. SCSI Statistics X.X XXXX IOs(0) Discons (0) Aborts (0) BusReset (0) x00000000 x00000000 x00000000 x00000001 IOs(1) Discons (1) Aborts (1) BusReset (1) x00000000 x00000000 x00000000 x00000001 A) Autorepeat C) Clear Counters X) Return to previous menu I/Os are the total number of data transfer events. Discons are the number of times that devices disconnect from the bus (usually to preserve bus or system performance).
■ Select 2) to display devices by target ID priority. ■ Select 3) to display devices by bus number priority. ■ Select 5) to display router/bridge statistics. Router/Bridge Statistics X.X XXXX Pending I/0s x00000000 A) Autorepeat X) Return to previous menu ■ 116 System Statistics Select A) to have the status information repeatedly refreshed.
Event Log When this option is selected from the System Utilities menu, the Event Log menu is displayed. Event Log Menu X.X XXXX 1) Display Event log 2) Clear Event log X) Return to previous menu ■ Select 1) to display the event log. — Example of an event log entry: 75 06/07/99 16:23:17 Unit Restart and Initialization Version: X.X Build Level: XXXX ■ Select 2) to clear the event log of old entries and start with an empty list.
Diagnostics Mode When this option is selected from the System Utilities menu, a confirmation message will appear to verify the selection. If a response of [Y] for YES is given to the confirmation message, current bridge activities will be interrupted while the bridge restarts itself and enters the diagnostics mode. The power-up messages will appear, followed by the Diagnostic menu. System Diagnostics Mode X.
SCSI External Wrap Test The following SCSI External Wrap Test is for both the FC 2/1 LV and the FC 4/ 1 HV bridges. When performing the SCSI External Wrap Test, the following prompts appear: Number of Test Iterations (1-10000 or Forever (F)): ■ Entering [F] or an integer in the range of 1 to 10,000 sets the number of times the test will repeat - the smaller the number, the quicker the test will reach completion.
Trace History When this option is selected from the System Utilities menu, the Trace Dump menu is displayed. Trace options are described in the Trace Settings on page 99. Trace Dump Menu X.X XXXX 1) Display trace for current boot cycle 2) Display trace for previous boot cycle 3) Clear current trace buffer X) Return to previous menu ■ Select 1) to display the trace history for the current boot cycle. ■ Select 2) to display the trace history from the previous boot cycle.
5. Specify the filename (.txt file) with the [get] command. For the current trace buffer, use [get curtrace.txt] For the previous trace buffer, use [get prvtrace.txt] The file will transfer from the bridge.
Reboot When this option is selected, a confirmation message will appear to verify the selection. If a response of [Y] for YES is given to the confirmation message, current bridge activities will be disrupted while the bridge restarts itself. The last saved configuration changes will also take effect after the bridge powers-on again.
Backup/Restore Configuration Settings The bridge supports backup and restore of configuration settings over FTP. This allows users to externally maintain multiple configurations of bridge settings and to be able to restore the configurations as needed. When backing up, configurations are saved from flash to a binary file. Configuration backup procedure: 1. Connect the bridge to the Ethernet network used by your computer. 2.
Configuration restore procedure: 1. Connect the bridge to the Ethernet network used by your computer. 2. Start your FTP program using the bridge's IP address: ftp The default IP address is 1.1.1.1. Refer to the information on changing the bridge IP address in Ethernet Connection on page 64. 3. Use [root] as the user name and [password] as the password. Refer to the information on changing the user name and password in Ethernet Connection on page 64. 4. Specify binary mode: Bin 5.
Download a New Revision of the Firmware When this option is selected, a confirmation message will appear to verify the selection. If a response of [Y] for YES is given to the confirmation message, current bridge activities will be interrupted while the bridge begins accepting the new firmware from the serial port. Upgrade Firmware The bridge can use FTP or serial communications to update the firmware.
3. Use [root] as the user name and [password] as the password. Refer to the information on changing the user name and password in Ethernet Connection on page 64. 4. Specify binary mode: Bin 5. Specify the firmware’s path and filename with the [put] command: put The file will transfer and the bridge will reboot. The bridge will then be using the new firmware. Note You may want to confirm the new firmware level by checking the reboot messages on the bridge through the serial interface.
The following figure shows what you might see on your terminal when you download a new revision of the firmware. Download Firmware Menu Version X.X XXXX Link Down This will replace the current revision of the firmware. A reboot will also be performed as part of this process. Are you sure (y/n)? Y please begin xmodem file transfer... D O W N L O A D C O M P L E T E ****************************************************** ...
128 Download a New Revision of the Firmware Chapter 5
6 HTTP Interface Chapter Overview This chapter describes the following: ■ Accessing the HTTP Interface on page 130 ■ Making Changes via the HTTP Interface on page 131 ■ Main Menu on page 133 The HTTP interface for the bridge allows access to many configuration settings including: ■ Baud rate of the serial port ■ Fibre Channel address ■ SCSI Initiator and Target IDs ■ Ethernet IP and MAC addresses ■ Device Mappings ■ Trace level settings All of the above settings and others may be changed
Accessing the HTTP Interface 1. Connect a 10baseT or 100baseT Ethernet cable to the back of the bridge. 2. Apply power to connected SCSI and Fibre Channel devices. 3. After all the devices have gone through their power up routines, boot up the bridge. 4. Turn on the host computer. 5. If the IP address for the bridge is known, open the host computer’s web browser and enter the IP address into the Address field. The factory default for the IP address of the bridge is 1.1.1.1. See Appendix D, Enabling DHCP.
To make changes to settings, use a standard keyboard and mouse to enter new information. Select the [Submit] button to send changes from the web browser to the bridge. Changes will not take effect until the next time the bridge reboots. The unit can be forced to reboot by selecting the [Reboot] option from the Main menu. Detailed instructions about all settings are provided later in this chapter. Note Menus are not case sensitive. You can enter uppercase and lowercase characters interchangeably.
Figure 38 Main Menu 132 Making Changes via the HTTP Interface Chapter 6
Chapter 6 Main Menu The menu bar on the left side of the bridge home page provides links to various bridge functions, information, and menus. ■ Identity Page ■ Configuration ■ Utilities ■ Discovery ■ Report ■ Support ■ Reboot Main Menu > Identity Page This menu item displays the bridge’s home page.
Main Menu > Configuration This menu item displays the configuration menus and the current configuration information.
Chapter 6 Main Menu > Configuration > Serial This menu item displays the Serial Configuration menu. If you are using the Autobaud feature, it may not be necessary to set a baud rate. See Chapter 2 for more information on using the Autobaud feature. ■ Figure 41 Chapter 6 [Baud Rate] can be selected from the pull-down list.
Main Menu > Configuration > Fibre Channel This menu allows for setting the Fibre Channel Address method, Hard Address value, discovery mode, WWN overrides and FC Port mode. Figure 42 Fibre Channel Configuration Page Note 136 Main Menu For In-Band Management to be operational, WWN naming schemes MUST be compliant with IEEE Fibre Channel Format 1, where the leftmost hexadecimal character (the NAA field) of the WWN is '1'.
Discovery Mode toggles the Discovery Mode among the following options: Auto Discovery on Reboot Discovery on Link Up Manual Discovery Only Discovery OFF Discovery Mode determines how the bridge will discover new FC devices. — Auto Discovery allows the bridge to automatically discover all Fibre Channel devices when the bridge reboots or whenever link-up events occur, such as connecting cables or rebooting network hubs. — Reboot Events is the default selection.
In Auto Sense - Soft ALPA mode, the bridge FC port tries to come up as a loop and if not successful, then tries to come up as a fabric. If the port comes up as a loop, it then determines whether its’s on a private or public loop. In N_Port mode, the bridge’s FC port skips trying to come up as a loop and instead tries coming up as a fabric only. If the bridge is on a loop and N_Port mode is selected, an error in communication may occur.
For more information, see Appendix C. Main Menu > Configuration > FC to SCSI Mapping This menu allows for setting the Fibre Channel Address method, Hard Address value, discovery mode, WWN overrides and FC Port mode. Figure 44 FC to SCSI Mapping Page ■ Mode Selection determines the mode of Fibre Channel to SCSI Mapping.
Indexed mode presents the user a table with the current mappings. The user can then select a table entry by FCP LUN and specify the associated BUS:TARGET:LUN. Auto-assigned mode fills the table with one of multiple prioritizing schemes, or with the currently attached SCSI devices. — LUN priority fills the table according to ascending LUN order. — Target ID priority fills the table according to ascending SCSI Target ID (SCSI device address ID) order.
Chapter 6 Figure 45 Edit Index Mode Map The current addressing table is shown at the bottom of the screen. ■ Delete Entry is used to delete entries from the Indexed addressing table. Select the [FC LUN] of the entry to delete from the pull-down list. Select the [Delete Map Entry] button to submit the deletion. ■ Add Entry is used to add entries to the Indexed addressing table. Select the [FC LUN], [BUS], [TARGET] and [LUN] for each entry added. Select the [Add Map Entry] button to submit the entry.
Figure 46 Fill Configuration Settings Choose from the following Fill options and select the [Submit] button: ■ Flat. This option sets all Fibre Channel LUN values in ascending order. Use this option when you have multiple devices using different D_IDs. LUN priority fills the table according to ascending LUN order. Target ID priority fills the table according to ascending SCSI Target ID (SCSI device address ID) order.
Main Menu > Configuration > SCSI This menu allows for setting the various SCSI attributes. Current settings are displayed at the bottom of the screen. Figure 47 Chapter 6 SCSI Configuration Page ■ SCSI Bus Reset toggles the SCSI reset operation between No-Reset and Reset-on-Boot. When set to Reset-on-Boot, the bridge will automatically discover SCSI devices after initial power up and after reboots. ■ SCSI Bus Discovery Delay changes the discovery delay time for SCSI devices.
recommends you set the value to at least 2 seconds to ensure all SCSI devices complete their individual power-ups. ■ Initiator Mode Buffered Tape Writes enables/disables Buffered Tape Writes which return status on consecutive write commands prior to the tape device receiving data in order to enhance performance.
Termination toggles SCSI termination between Internal and External. This option is only available on 4150 and 4250 models. 4450 models are automatically set to Internal termination only. The Internal setting allows the bridge to internally terminate a SCSI connection. Setting this option to External allows the SCSI Bus, not the bridge, to handle SCSI terminations. Select the [Submit] button to submit changes to the above options. Close the window if no changes are desired.
■ MAC Address changes the Ethernet Physical Address of the bridge. MAC addresses are assigned to Ethernet adapters by the manufacturers. ■ IP Address changes the IP address of the bridge. The default for this setting is 1.1.1.1. ■ Subnet Mask changes the IP subnet mask for the bridge. The default for this setting is 255.255.255.0. ■ Hostname changes the hostname for the bridge. This is an alphanumeric entry of one word up to 8 characters long.
Main Menu > Configuration > User This menu allows for setting the various security settings. Current settings are displayed at the bottom of the screen. Figure 50 User Configuration Page ■ Security settings include the User Name and Password. The user name and password should be unique and kept confidential. It is recommended to use a combination of letters and numbers when creating user names and passwords.
Main Menu > Configuration > Real Time Clock This menu allows for setting the various time and date settings. Current settings are displayed at the bottom of the screen. Figure 51 148 Main Menu Real Time Clock Configuration Page ■ Date Settings are for setting the month, date, and year. For the year, be sure and use a four digit number to represent the year. ■ Day of Week is for setting the day of week (Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, or Saturday).
Chapter 6 Main Menu > Configuration > Active Fabric This menu allows for setting the various Active Fabric attributes, including server-free backup options. Current settings are displayed at the bottom of the screen. Figure 52 Active Fabric Configuration Page ■ Server-Free Backup Mode toggles between Enabled and Disabled. When enabled, server-free backup capability is enabled on the bridge so that it can accept Extended Copy commands.
Main Menu > Configuration > Reset to Factory Settings This menu allows the bridge to be reset to the factory default settings. Figure 53 Reset to Factory Settings Page When this option is selected, a confirmation message will appear to verify the selection. If a response of Yes is given to the confirmation message, current bridge activities will be disrupted while the unit resets all current configuration options to the factory defaults and saves those options to FLASH memory as the current configuration.
Chapter 6 Main Menu > Configuration > Restore to Last Boot Configuration This menu allows the bridge to be restored to the last boot configuration. Figure 54 Restore to Last Boot Configuration Page When this option is selected, a confirmation message will appear to verify the selection. If a response of Yes is given to the confirmation message, current bridge activities will be disrupted while the unit restores the most recently saved configuration.
Main Menu > Utilities This menu item displays the utility menus.
Chapter 6 Main Menu > Utilities > Statistics This option displays current system statistics. Figure 56 System Statistics Page This option displays current Fibre Channel and SCSI statistics. Fibre Channel Statistics: Chapter 6 ■ LinkState is the current FC link status. ■ AL_PA is the arbitrated loop physical address. ■ InDevDataSeqs is the number of Device Data sequences received by this port. ■ OutDevDataSeq is the number of Device Data sequences transmitted by this port.
■ InLnkDataSeqs is the number of Link Data frames received by this port. ■ OutLnkDataSeq is the number of Link Data frames transmitted by this port. ■ InP_BSYFrames is the number of P_BSY frames received by this port. ■ OutP_BSYFrms is the number of P_BSY frames transmitted by this port. ■ InF_BSYFrames is the number of F_BSY frames received by this port. ■ InP_RJTFrames is the number of P_RJT frames received by this port. ■ OutP_RJTFrame is the number of P_RJT frames transmitted by this port.
Chapter 6 Main Menu > Utilities > Trace Settings This menu allows for setting the trace settings for the bridge. Figure 57 Trace Settings Page This menu toggles the current trace settings to either ON or OFF. Event logging captures up to the last 215 events and then starts overwriting the log when full.
Note So that event logging is accurate, be sure to correctly set the clock and date in the Real Time Clock Configuration menu. Main Menu > Utilities > Display Current Boot Traces This option displays traces from the current boot cycle.
This option displays traces from the previous boot cycle.
Main Menu > Utilities > Clear Trace Buffer This option allows the trace buffer to be cleared. Figure 60 Clear Trace Buffer When this option is selected, a confirmation message will appear to verify the selection. If a response of Yes is given to the confirmation message, the unit will clear the current trace buffer. Current bridge activities will not be disrupted by this operation.
Chapter 6 Main Menu > Utilities > Event Log Settings This menu allows for setting the Event Log settings for the bridge. Figure 61 Event Log Settings Select from the Event Log settings shown. Each option enables/disables its respective filtering option. Event logging captures up to the last 215 events and then starts overwriting the log when full. Note Chapter 6 So that event logging is accurate, be sure to correctly set the clock and date in the Real Time Clock Configuration menu.
Main Menu > Utilities > Display Event Log This option displays the Event Log.
Chapter 6 Main Menu > Utilities > Clear Event Log This option allows the event log to be cleared. Figure 63 Clear Event Log Page When this option is selected, a confirmation message will appear to verify the selection. If a response of Yes is given to the confirmation message, the unit will clear the event log. Current bridge activities will not be disrupted by this operation.
Main Menu > Discovery This menu displays current known devices and allows discovery of new ones. Figure 64 Discovery Page ■ 162 Main Menu Select the [Perform Discovery] button to activate the discovery process. This process is performed according to the settings configured in the Fibre Channel Configuration menu.
Chapter 6 Main Menu > Report This option displays all status and statistics information for the bridge, ports, and mapping tables. If printing a hardcopy, first select the option for the printer friendly format and then print the page.
Main Menu > Reboot This option allows the bridge to be rebooted. Figure 66 Reboot Page When this option is selected, a confirmation message will appear to verify the selection. If a response of Y (yes) is given to the confirmation message, current bridge activities will be disrupted while the unit restarts itself. The last saved configuration changes will also take effect after the bridge powers on again.
SAN Environments 7 Chapter Overview This chapter contains information on the following: ■ Installation and Configuration on page 166 ■ Omniback Configuration on page 168 ■ HP-UX Configuration on page 172 ■ Windows Configuration on page 178 ■ Solaris Configuration on page 180 ■ Switch Configuration on page 181 Chapter Overview 165
Installation and Configuration This section explains how to install and configure the HP Surestore Bridge FC 2/1 LV and FC 4/1 HV within HP SAN Backup solutions. Basic knowledge about installing and configuring tape libraries, Host Bus Adapters (HBAs), and software in a non-SAN configuration is required.
Note Each actual installation should be verified against the guidelines of HP supported SAN Backup Solutions. See Table 8 on page 48 for a list of supported products. Contact your HP representative for the most recent information.
Omniback Configuration SAN configurations require Omniback II or later. In addition, you must make the following configuration changes. 1. Open the Device & Media Management screen shown in Figure 68 by pressing the [Device & Media] button on the Omniback II main screen that appears when you first start up Omniback.
2. From the Device & Media Management screen: select [Edit] > [Create] > [SCSI-II Library] Configure the library and drives so all nodes on the SAN can share them: — Configure a single tape library — Control the robotic arm from a single server, such as the cell server — Do not check the SCSI Reserve/Release box (see Figure 69) Logical Device Editor - SCSI-II Library Chapter 7 Figure 69 3. Configure each tape drive for each host that will access it.
Figure 70 Logical Device Editor - Drive 5. Click the [Advanced Options...] button to bring up the Logical Device - Advanced Options screen shown in Figure 71 on page 171. — Provide a common Lock Name for each tape drive. To enable shared access of tape drives by different hosts, you must use the same Lock Name for each instance of the same tape drive. In this example, drives “lpc7060_drive_1” and “lpc7062_drive_1” are configured with the same Lock Name, “drive_1”.
Figure 71 Logical Device - Advanced Options Chapter 7 Note Chapter 7 For optimized performance when configuring hosts with multiple HBAs, use only one path per tape drive and distribute the tape drives across the HBAs. For additional information see HP-UX Configuration on page 172.
HP-UX Configuration Use one of the Fibre Channel cards listed in Table 8 on page 48. You must also install the fabric driver for the appropriate platform. Note Always use the latest release of fabric drivers. Configure a single path for each tape drive. The device files must be manually selected or created, and configured properly in the software. In this example, two tape drives are configured from the HP-UX host, one from each HBA.
1. Set the static kernel tunable parameter st_ats_enabled to OFF (0). This can be done from the Kernel Configuration window of HP-UX system administration tool (SAM) shown in Figure 73 and requires a kernel rebuild and system reboot. When this parameter is enabled an implicit SCSI reserve and release is performed during the open and close sequence in the tape driver. This default was originally designed for ATS services with MC/ServiceGuard.
2. Configure the Tape Device Monitor (dm_stape) of the Event Monitoring System (EMS) to not run on the host participating in the tape SAN. The EMS service periodically polls the tape devices to monitor their health. When this occurs while another server is accessing the tape device, backup operations may be disrupted, time out and abort. There are two ways to disable the dm_stape monitor while keeping the Event Monitoring System enabled.
d. Make a list of all the monitors and monitoring requests that have “SCSI_tape” listed. (You modify these in the next step.) e. Delete all monitoring requested for “SCSI_tape”. Use the modify command: — Type [M]. The tool displays a list of all monitoring requests and prompts for a number of the request to change. — Enter the numbers of the monitors except the one listing SCSI_tape (usually number 12).
— Re-enter the Criteria Threshold, Criteria Operator, Notification Method, User comment, and Client Configuration File. — Type [Y] to keep the changes. — Repeat these steps for all monitor requests that contain “SCSI_tape”. f. Type [C] for the changes to take effect. 3. Rename the dm_stape.psmcfg file as follows: mv /var/stm/config/tools/monitor/dm_stape.psmcfg /var/stm/config/tools/monitor/dm_stape.psmcfg.orig 4. Verify that EMS is not taking further monitoring requests for dm_stape.
3. Restore the dm_stape.psmcfg file and the dm_stape.sapcfg files as follows: mv /var/stm/config/tools/monitor/dm_stape.psmcfg.orig /var/stm/config/tools/monitor/dm_stape.psmcfg mv /var/stm/config/tools/monitor/dm_stape.sapcfg.orig /var/stm/config/tools/monitor/dm_stape.sapcfg 4. Check for monitoring requests in monconfig. In monconfig, enter [C] command and verify that “SCSI_tape” is accepting monitoring requests. If the POLL_INTERVAL value in the /var/stm/config/tools/monitor/ dm_stape.
Windows Configuration For Windows platforms, you must use driver version of 2.06 or later with the D8602A/B FC HBA. You must manually configure the driver to initialize with the switch using N_port instead of NL_port. Configure this through a registry setting which is described in the readme file provided with the HBA driver. Windows 2000 Removable Storage Manager The Windows 2000 Removable Storage Manager services running on one host may interfere with backups running on other hosts in the SAN.
2. Click on [Services] in the left pane, then double click on [Removable Storage] in the right pane to stop the Removable Storage service. 3. Set the Startup type to [Disabled].
Solaris Configuration For information regarding configuring Solaris hosts, please refer to available configuration notes for the JNI FC HBA on Solaris systems.
Switch Configuration HP/Brocade Switch and Fibre Channel Bridge Configuration Use the default configuration for the Fibre Channel switch in SAN backup configurations (see Figure 67 on page 166). ■ HP-UX host is attached to ports 1 & 2 of the switch ■ Windows NT server is attached to port 0 ■ FC Bridge 4/1 HV is attached to port 6 Verify that the switch is not using Quick Loop mode. Use zoning only if it is needed to simplify configuration on the hosts.
Figure 76 Fibre Channel Switch Configuration switch59:admin> version Kernel: 5.3.1 Fabric OS: v2.1.9f Made on: Mon Dec 4 14.37.39 PST 2000 Flash: Mon Dec 4 14.38.10 PST 2000 BootProm: Thu Jun 17 15:20:39 PDT 1999 switch59:admin> switch59:admin> switchshow switchName: switch59 switchType: 3.4 switchState: Online switchRole: Principal switchDomain: 2 switchId: fffcO2 switchWwn: 10:00:00:60.169.20.
Troubleshooting 8 Chapter Overview This chapter describes the following: ■ LED Indicators on page 184 ■ Basic Verification on page 186 ■ Diagnosing Problems on page 191 This chapter is provided to help guide the user through some of the basic methods of identifying faults in the setup and configuration of the bridge. Most problems are found in the initial installation. In general, it is wise to check all connections and review the configuration before proceeding with further trouble analysis.
LED Indicators The LED indicators on the bridge are useful for diagnosing various problems. Figure 77 HP Surestore Bridge FC 2/1 LV LEDs Figure 78 HP Surestore Bridge FC 4/1 HV LEDs ■ 184 LED Indicators The power indicator turns on when power is applied to the bridge. Lack of power suggests the bridge may be turned off, a power supply problem, or an internal problem with the bridge.
The fault indicator is lit when the bridge detects a fault condition. Faults can occur as a result of a power-on self test (POST), or operational failure. It is normal for this indicator to flash on when the bridge is powered up or reset. If the fault indicator stays lit, contact an HP service representative. ■ The Fibre Channel indicator shows Fibre Channel activity when lit.
Basic Verification SCSI Bus Configuration Problems with SCSI bus configuration are common. Basic operation of a SCSI bus can be checked by using the configuration menu to view attached SCSI devices. See SCSI on page 89 for more information. Other conditions to look for include: 186 Basic Verification ■ Termination - Problems with termination can cause intermittent or hard failures. A SCSI bus must be terminated on both ends and only at the ends.
Even if the SCSI devices are displayed, they are not accessible unless the mapping mode is auto-assigned or the mapping table has been filled when using indexed addressing. Fibre Channel Connection If SCSI devices are recognized on the SCSI buses, but do not appear to the Fibre Channel host, it may be that the Fibre Channel link is not properly established. Most hubs and switches have link indicators, showing link status.
Device Recognition in HP-UX Figure 79 ■ Execute an ioscan command ■ The ioscan should list each tape drive and the robotics controller. ■ See Figure 79 on page 188.
Configuration A number of configuration changes may result in an invalid configuration. If you are in doubt about the configuration, restore the bridge to the factory default configuration, and configure the bridge one step at a time to verify the functionality of the configuration as changes are made. Devices It may be useful to connect the SCSI target devices you are attempting to use to the native SCSI interface to verify that the devices are functional.
Serial Port Problems If you experience trouble communicating with the serial port, verify the configuration of the host terminal or terminal emulation program. The bridge requires the baud rate to be set correctly, 8 data bits, 1 stop bit, and no parity. Flow control should be set to none or XON/XOFF, and may cause problems if set to [hardware]. Some terminal programs may not support baud rates higher than 19200, so a lower baud rate may be required.
Diagnosing Problems This section describes potential problems and solutions. If you are unable to diagnose and solve a problem using these guidelines, contact an HP service representative or your sales representative. By using these suggested procedures, you can determine in advance some of the information that a service technician will need. Cannot Turn On the Tape Library or MO Jukebox If the library or jukebox will not power-up, use the following steps before taking further action: 1.
Cannot Confirm the Library or MO Jukebox Connection (Windows NT) Note The NT discovery process is not dynamic. When SCSI devices are powered on after the host, the control panel will not display their connection until the host is re-booted. 1. Confirm the library or MO jukebox connection by using the control panel menu on the server to review the SCSI device folder. 2. Before powering-on the bridge, make sure the library or MO jukebox and drives are configured for SCSI.
— Device ID: Each device on a SCSI bus must have a unique ID. The default SCSI ID of the bridge is 7. Make sure that this ID is not in use on the bus. Check the library or MO jukebox user guide for the default SCSI IDs. Verify that other IDs on the bus are not in conflict. — Cabling: Check SCSI cables to verify that they are functional. Be sure the maximum cable length on the differential cable connected to the bridge does not exceed a total of 25 meters.
Cannot Confirm Connection Through a Fibre Channel Switch 1. Check the LED indicators on each switch port. — Steady green indicates that the port is online (connected with a device over FC). — Flickering green indicates frames are being transferred through the port. — Yellow indicates port is not online, is disabled, or in fault. 2. No light indicates no module, no cable, or power is off. 3. Telnet into the switch using instructions provided with the switch. 4.
— The FC 2/1 LV bridge provides only LVD/SE SCSI buses. HVD SCSI devices cannot be supported on this bridge without a converter. Verify that all devices hooked up to each bus of the FC 2/1 LV are LVD or SE devices. Do not mix LVD and SE devices on the same SCSI bus of the FC 2/1 LV. — Device ID: Each device on a SCSI bus must have a unique ID. The default SCSI ID of the bridge is 7. Make sure that this ID is not in use on the bus. Check the library or MO jukebox user guide for the default SCSI IDs.
196 Diagnosing Problems Chapter 8
A Serial and Ethernet Pin Assignment The pin assignments given for the DB-9 serial connection is in reference to the serial receptacle on the back panel of the bridge. Use an RS-232 null modem cable to connect the bridge to the host system.
The pin assignments given for the RJ-45 Ethernet connection are in reference to the Ethernet receptacle on the back panel of the Fibre bridge. The bridge Ethernet connection supports the IEEE specifications for 10 Base-T and 100 Base-TX Ethernet standards.
Controller LUN Commands B The HP Surestore Bridge FC 2/1LV and FC 4/1 HV models support a set of SCSI-3 commands that can be received as FCP commands over the Fibre Channel bus or as SCSI commands over a SCSI bus. These commands are hereafter referred to as Controller LUN commands. These commands provide support for a number of value added features including: ■ Copy Manager ■ In-Band Management.
Note Indexed Mode — Controller LUNs are numbered beginning with LUN 0x50 (80d). There may be a gap between the last device and the first controller LUN. Note Host software must use the Inquiry command in order to determine which bridge LUNs are controller LUNs verses device LUNs. See the Inquiry and Report LUNs commands in the In-Band Management section of this appendix. The following is a list of the commands that are supported by the controller LUNs. All of these commands are SCSI-3 commands.
General Commands Following is a description of a general-use Controller LUN. Report LUNs Command The bridge supports the Report LUNs command. The Report LUNs command will return a list of Logical Unit Numbers (LUNs) that can receive commands. The format of the report LUNs command is shown in Table 3 .
The bridge returns the LUN Parameters as defined in Table 4 on page 202. Table 4 Report LUNs Parameter List Bit Byte 7 0 (MSB) 1 2 6 5 4 3 2 1 0 LUN List Length (LSB) 3 4 Reserved 5 Reserved 6 Reserved 7 Reserved LUN List 0-7 First LUN . . 0-7 Note 202 General Commands Last LUN The LUN list length is the number of LUNs times 8.
Appendix B Note In addition to the device LUNs, controller LUNs also appear in the report. Controller LUN values appear at the end of the list. The host software must use the Inquiry command in order to differentiate controller LUNs from other storage device LUNs. Controller LUN Inquiries will report a peripheral device type of 0x0c. Note The controller LUN at LUN 0x7f may not be reported in response to a Report LUNs command but the host software may discover this LUN if it does an Inquiry at LUN 0x7f.
Copy Manager Following is a description of the Controller LUN commands used for Copy Manager. For more information about these Controller LUN commands, please contact your service representative. Extended Copy Command The Extended Copy command supports the following descriptor codes listed in the standards specifications (see T10 document 99-143r1).
Table 5 Format of Receive Copy Results Command Bit Byte 7 6 5 0 Operation Code (84th) 1 Reserved 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 11 12 4 3 2 1 0 Mode (MSB) Allocation Length (LSB) 13 Appendix B 14 Reserved 15 Control Copy Manager 205
The Mode field is used to define the type of Receive Copy Results operation to be executed. Currently, the only supported value for the Mode field is a value of 0, which will return the current copy status of the executing Extended Copy command identified by the List ID. The bridge returns the Copy Status as defined in Table 6 .
Transfer Count Format: Specifies the format of the transfer count. See Table 8 on page 207. Table 8 Transfer Count Format Transfer Count Format Value Transfer Count Format 0 bytes 1 Kilobytes 2 Megabytes 3 Gigabytes 4 Terabytes 5 Petabytes Transfer Count: Specifies the amount of data transferred in bytes by the Extended Copy command prior to receiving the request for copy status.
In-Band Management Following are descriptions of some of the Controller LUN commands used for In-Band Management of the bridge. Download Command The Download (WRITE_BUFFER) command is used to transfer firmware to the bridge over Fibre Channel. Multiple WRITE_BUFFER commands will be required to accomplish the total transfer. All write commands except the final write will have the 3-bit Mode field set to 0x06.
Table 9 Format of Download Command Bit Byte 7 6 5 0 Operation Code (0x3B) 1 Reserved 2 Buffer ID 3 (MSB) 4 4 3 2 1 0 Mode Buffer Offset (LSB) 5 6 7 (MSB) Parameter List Length (LSB) 8 9 Control Byte 2 is set to 0xFA; Bytes 6-8 are set to the length of the outbound data length (maximum transfer length is 64K (0x10000)). The mode will be set to 0x06 for the first and middle Write Buffers and 0x07 for the last.
Note Multiple Upgrade Firmware commands will generally be required to transfer the entire program image from the host to the bridge DRAM. When the last data block is transferred (mode = 0x07) the bridge terminates data transfer and performs a CRC checksum on data received. It is required that the FC initiator sends sequentially from the beginning of the firmware image to the end. No out of sequence Write Buffers are allowed. If the CRC test is successful, the Controller will reboot.
Identify Unit Command When the Identify Unit Command is issued to a bridge, the bridge identifies itself by flashing its LEDs for a specified period of time. See Table 10 .
Blink Rate: How fast the LED's should blink. ■ The blink rate is specified in 1/60th of a second. ■ Valid values are 1- 255 LUN Inquiry Command The format of the LUN Inquiry Command is shown in Table 11 .
If the EVPD bit is set and the Page Code is 0x80 the unit serial number page is returned. The format of this page is shown in Table 10 on page 211. The serial number field is a sixteen-byte left justified ASCII string. Table 12 Format of EVPD Page 0x80 Bit Byte 7 6 5 0 Operation Code (0ch) 1 Page Code (80h) 3 Reserved 4 Page Length 5 ... 20 4 3 2 1 0 Serial Number The bridge returns the LUN Inquiry Data as defined in Table 13 .
Table 13 LUN Inquiry Data Item Value RelAdr 0x00 Wbus32 0x00 Wbus16 0x00 Sync 0x00 Linked 0x00 CmdQue 0x00 SftRe 0x00 Vendor HP Product ID A4688A (FC 4/1 HV) A4689A (FC 2/1 LV) Revision Level "XXXX" The bridge will only reply to a SCSI Inquiry when using 8-byte LUN field of 0x00's. Once the bridge has been detected, then the devices on the SCSI-2 can be detected using the SCC Logical unit addressing.
In the situation where the SCSI host is unable or unwilling to talk to any LUN except for the known controller LUN, the host can perform a REPORT LUNS command (See Table 14 ). The bridge will respond with a list of all addressable LUNs. Each of these LUNs reported can then be queried for inquiry data. The first two bytes of each SCC LUN are inserted into the FCP Logical Unit Number field on the Virtual Inquiry Command.
Allocation Length: Maximum number of data bytes the Target may send. Page Code or Operation code: indicates which VPD page or Command Support data to return. VPD pages are used to return vendor specific data. Refer to SCSI-3 Primary Commands for specific details on VPD. FCP Logical Unit Number: Unique LUN for each addressable device. Typically this is the first two bytes of the LUN returned from the REPORT LUNS Command.
Where N is the number of INQUIRY data bytes returned from the device + 1. The Bus Type is zero for a SCSI bus. 0 : SCSI 1 - ff: Reserved The Bus Number is the number of the SCSI bus to which the device is connected. The ID is the device's Target Identifier.
Mode Page Descriptions Copy Mode Page (0x0e) Mode Sense Page for Extended Copy: ■ Defined in the ANSI document T10/99-143r1 (see Reference Standards on page 4) Vendor Unique pages: ■ Bridge Configuration Mode Page 0x20 ■ Net Configuration Mode Page 0x21 ■ Fibre Channel Configuration Mode Page 0x22 ■ SCSI Configuration Mode Page 0x23 Bridge Configuration Mode Page (0x20) Table 16 Format of Bridge Configuration Mode Page (0x20) Bit Byte 7 6 0 PS Reserved 1 Page Length 2 Reserved 3 Reset Bridge
Reset Bridge ■ When used with the MODE SENSE command, the Reset Bridge bit is not defined. ■ When used with the MODE SELECT command, setting the Reset Bridge bit to a one when the PS bit in the mode page and the SP bit in the CDB are also set to one causes the bridge subsystem to be reset and reboot itself. ■ Resetting the bridge will cause the bridge to be booted utilizing any new parameters that have been updated. Firmware Version ■ Eighty-byte NULL terminated ASCII string.
Bridge Net Configuration Mode Page (0x21) Table 17 Format of Bridge Net Configuration Mode Page (0x21) Bit Byte 7 6 0 PS Reserved 1 Page Length 2 ... 7 (MSB) 8 Ethernet Mode 9 ... 11 (MSB) 12 ... 15 (MSB) 16 ... 19 IP Net Mask 20 ... 23 IP Gateway 24 ... 87 Bridge Name 88 ...
Ethernet Mode 0: reserved 1: auto 2: hd-100 3: fd-100 4: x-10 The Bridge Name is an ASCII NULL terminated string. It is called the “Host Name” in other documents. This name is entered by a user and is used to identify this particular bridge.
Bridge Fibre Channel Configuration Mode Page (0x22) Table 18 Format of Bridge Fibre Channel Configuration Mode Page (0x22) Bit Byte 7 6 0 PS 1 Page Length 2 3 Number of FC Ports 4 ... 9 Reserved 10 Reserved 12 ... 19 Node WWN 20 + (N*Port) Reserved 5 4 3 2 1 0 Page Code (0x22) FC to SCSI Mapping Mode Port Information 0 ... 7 (MSB) 8 Domain (Port[N]) 9 Area (Port[N]) Port WWN (Port[N]) (LSB) 10 AL_PA (Port[N]_) 11 Use Hard AL_PA 12 Hard AL_PA to use (Port[N]) 13 ...
Fibre Channel to SCSI Mapping Mode 0: reserved 1: SCC 2: indexed 3: auto-LUN 4: auto-TGT 5: auto-BUS 6-f: Reserved Fibre Channel Discovery Mode 0: reserved 1: manual 2: auto-boot 3: auto-link 4-f: Reserved A use hard AL_PA bit of one means that the bridge should use the AL_PA specified by the hard AL_PA to use as its hard assigned address when the FC loop for this port is initialized.
SCSI Configuration Mode Page (0x23) Table 19 Format of SCSI Configuration Mode Page (0x23) Bit Byte 7 0 PS 1 Page Length 2 3 (MSB) 4+ N*Bus 6 Reserved 5 4 3 2 1 0 Page Code (0x23) Number of SCSI Busses SCSI Bus Configuration 0 Reset on Boot 1 2 3 Reserved 4 ... 7 (MSB) 8 9 Initiator ID Disable Discovery Reserved Discovery Data (LSB) 10 11 Target ID Mask ... ... Page Length: Specifies the length in bytes of the mode parameters that follow.
Target ID Mask: A mask of SCSI Target IDs. A mask has a bit set for each Target ID in use. Example: 0x0085 = 0000 0000 1000 0101 indicating Target ID's are 7, 2, and 0. SCSI Statistics Mode Page (0x28) Table 20 Format of SCSI Statistics Mode Page (0x28) Bit Byte 7 6 0 PS 1 Page Length 2 3 Number of SCSI Busses 4+ N*Bus (MSB) 8 ... 11 (MSB) 12 ... 15 (MSB) 16 ... 19 (MSB) Appendix B 4 3 2 1 0 Page Code (0x28) SCSI Bus Statistics 4 ...
Table 20 Format of SCSI Statistics Mode Page (0x28) Bit Byte 7 21 ... 23 Reserved ... ...
When used with the MODE SENSE command the clear counts bit is not defined. When used with the MODE SELECT command setting the clear counts bit to a one only when the PS bit is also set to one will cause all of the SCSI counts for the associated SCSI bus to be reset to zero. I/Os: The number of I/Os on the SCSI bus. Disconnects: The number of Disconnects on the SCSI bus. Abort Count: The number of SCSI bus termination messages (i.e.
PRLI Data The bridge supports the discovery mechanism as described in the standard “Private Loop SCSI Direct Attach Rev. 1.6 (section 10.3 - Target Discovery)”. The bridge returns the PRLI response data as specified in Table 21 .
C Addressing, Structures and Operation Fibre Channel and SCSI systems employ different methods of addressing devices. The inclusion of a bridge requires that a method of translating device IDs be implemented so that each SCSI device is mapped to the appropriate Fibre Channel LUN. The SCSI buses establish bus connections between devices. Targets on a SCSI bus may internally address logical units. The addressing of a specific SCSI device is represented by the bus:target:LUN triplet.
Table 23 Address Method Definitions Codes Table 24 Description 00 Peripheral Device Addressing Method 01 Volume Set Addressing Method 10 Logical Unit Addressing Method 11 Reserved Peripheral Device Addressing Bit Byte N N+1 230 7 0 6 0 5 4 3 2 1 0 Bus Target/LUN Appendix C
The bridge supports the peripheral device addressing method and the logical unit addressing method, depending on the configuration.
SCC Addressing Option When a bridge is configured to use SCC addressing, the unit is capable of responding as a controller device to the FCP initiator or routing the FCP request to a specified bus:target:LUN. When a request using the peripheral device addressing method is received (an FCP command with the LUN field with bits 7 and 6 of byte 9 are set to 0), the unit routes the request to the internal processor, which acts on the command directly.
SCSI Initiators to Fibre Channel Targets SCSI Initiators addressing Fibre Channel targets require that the bus:target:LUN selected be associated with a given Fibre Channel destination ID and FCP LUN field. When a command is received on the SCSI bus, the routing table for that unit is accessed to determine what destination ID, and thus, what FCP target device to which the command is routed.
234 SCSI Initiators to Fibre Channel Targets Appendix C
Enabling DHCP D DHCP, or Dynamic Host Configuration Protocol, is an open industry standard that simplifies administering networks based on Transmission Control Protocol/ Internet Protocol (TCP/IP). DHCP allows network resources to go farther by enabling a unique IP address to be assigned to a specific device (HP bridge, client host, etc.) on a non-permanent, dynamic basis. DHCP makes network administration easier-the larger the network, the greater the benefit.
1. An IP address: a 32-bit field composed of four octets (8-bit numbers from 0 through 255). Each address has decimal notation to separate octet numbers, such as 208.24.132.184. Your DHCP server may allow you to setup a lease reservation for an IP address by providing the server with the Ethernet MAC address of the bridge. This sets the DHCP server to always provide the same IP address to the bridge. This setup can be useful for remote management of the bridge via Telnet or the Web interface.
Setting up DHCP over Bridge Interfaces HP bridges use two different interfaces which can be used to enable DHCP: Serial and Telnet, and HTTP. The following will describe how to enable and disable DHCP for each interface. Located on the back of the bridge, a MAC label displays the unit's Ethernet MAC address. A network administrator can then use this MAC address to setup a lease reservation on the DHCP server for the IP address of the bridge.
Select 1) Perform Configuration menu. The following menu appears: HP Surestore Bridge FC 4/1 HV X.
Ethernet Configuration This option allows for setting up all Ethernet network settings including IP address, Subnet mask, IP gateway, Ethernet mode, physical address, and hostname. HP Surestore Bridge FC 4/1 HV X.X XXXX Ethernet Physical Address IP Address Subnet Mask Hostname IP Gateway Ethernet Mode DHCP Configuration 1) 2) 3) 4) 5) 6) 7) 8) 9) : : : : : : : 08:06:07:05:03:09 1.1.1.1 255.255.255.0 0.0.0.
Once DHCP is enabled, it is necessary to save the current configuration and reboot the bridge before DHCP will operate. Note For the IP address, Subnet Mask, and IP Gateway address, it is okay to have null values prior to rebooting the bridge. However, if these settings have null values after a reboot, then this indicates the DHCP server was unable to acquire the information for that setting. See note below for more information.
Ethernet IP Address, Subnet Mask, and Gateway Address Once DHCP is enabled, any “null” readings are acceptable for these 3 options before reboot. Also, the Ethernet Configuration menu will not allow for changing these 3 options (since they are automatically configured by DHCP). As a result, the Ethernet Configuration menu will display without these options listed.
HTTP Interface To access the HP Surestore Bridge FC 2/1 LV or 4/1 HV using HTTP, first look up the current IP address within the Ethernet Configuration menu using the Serial or Telnet interface. Next, type the IP address in the HTTP browser. See “HTTP Troubleshooting” at the end of this Appendix if there are any HTTP difficulties associated with user name and password. After entering the IP address, the user should see the Configuration menu. Click on the [Configuration] link.
6. The Gateway address should have the same subnetwork (1st three bytes) as the IP address. For example, an IP address of 192.168.100.93 may have a Gateway of 192.168.100.1. However, an “unavailable” Gateway value appearing under the CURRENT section of the Configuration menu means the DHCP server was unable to get the Gateway address. If this happens, contact the network administrator to make sure the DHCP server is providing this information, or manually change the Gateway address yourself.
General DHCP Troubleshooting What happens if the DHCP server cannot be contacted? Serial Interface: the following occurs over the serial line: the following text appears above the Main menu within the hyperterminal window, “Attempting to contact DHCP server…” After about 3 minutes, the following message appears, “Can't renew DHCP boot lease.” Within Telnet: the user will see only a blank Telnet window which is not accessible.
Customer Support E Hewlett-Packard Customer Support For the most current version of this manual and other information regarding your HP Surestore Bridge FC 2/1 LV and FC 4/1 HV, visit the HP Customer Care website at: www.hp.com/go/support. If your bridge fails during the warranty period and the suggestions in the documentation do not solve the problem, you can receive support by doing the following: ■ If you have a service contract with HP, contact your local HP Response Center.
246 Appendix E
Glossary A adapter A printed circuit assembly that translates data between the FC host processor's internal bus and a different bus, such as SCSI. address See SCSI Addressing. addressing Mode AL_PA ANSI arbitrated loop topology area asynchronous ATM auto-assigned mapping Used to create a mapping table that maps devices on the SCSI bus to Fibre Channel logical units. Arbitrated Loop Physical Address.
B baud A unit of signaling speed, expressed as the maximum number of times per second the signal can change the state of the transmission line or other medium (units of baud are sec-1). With Fibre Channel scheme, a signal event represents a single transmission bit. bridge A device which selectively forwards data between networks based on administratively defined preferences. The forwarding decision is based on paths between address mappings among dispersed devices.
F fabric Fibre Channel-defined interconnection methodology that supports high-speed data routing in Fibre Channel networks. fault LED During power up and self test, the 4x50 Fault LED comes on. After self test, if this LED remains on or comes on, the 4x50 has a problem with one of its components. During normal operation, this LED should be off. FC-AL FC adapter FC device FC port FC-SCSI hardware path ID FC-SW An acronym for Fibre Channel Arbitrated Loop topology.
peripherals. Fibre Channel is capable of transmitting at rates exceeding one gigabit per second in both directions simultaneously. Fibre Channel Arbitrated Loop (FCAL) One of three existing Fibre Channel topologies, in which 2 to 126 devices are interconnected serially in a single loop circuit. The arbitrated loop topology supports all classes of service and guarantees in order delivery of frames when the source and destination are on the same loop.
I ID Numerical identifier indexed addressing A menu name. It allows for generic Fibre Channel host bus adapters to access SCSI devices attached to the 4x50 using a table which is indexed by sequential LUN values. initiator A device (usually a host system) that requests an operation to be performed by another device known as a target (usually a peripheral).
M Mb Megabit. MB Megabyte. (There are 8 bits in a byte.) MIA An acronym for the media interface adapter plug-ins, which allow you to go from copper to optical or visa versa. MIM An acronym for the Media Interface Module. mapping table motherboard multicast multiplexer A table which is indexed by sequential LUN values, indicating selected BUS:TARGET:LUN devices. It is used by the 4x50 to perform Fibre Channel-toSCSI operations by default.
O OFC An acronym for Open-Ended Fibre Control. When a cable link is dropped, the laser drops, to eliminate the potential for eye damage. offline Taking the bridge offline indicates that all SCSI and FC adapters in the bridge are offline. Taking a SCSI adapter offline means ending inputs/outputs and suspending all transactions going from the bridge to the specified SCSI devices. The SCSI adapter is no longer active or available for access.
R RAID receiver Redundant Array of Inexpensive Disks A terminal device that includes a detector and signal processing. Reset SCSI For a specific SCSI bus, the host clears all inputs and outputs and then resets the bus and all the devices connected to it. responder The logical function in an N_Port responsible for supporting the exchange initiated by the originator in another N_Port. A FC responder is comparable to a SCSI target. The 4x50 is often the responder.
The narrow SCSI adapter is factory set to address 7. A narrow SCSI adapter supports up to eight devices, including itself. SCSI address “7” has the highest priority followed by 6, 5, 4, 3, 2, 1, and 0. SCSI bus The means of transferring SCSI data between SCSI devices. It is an 8-bit or 16bit bus that supports up to eight or sixteen devices (including itself), in any mix of initiators and targets, with the limitation that at least one initiator and one target must be present.
switched fabric Synchronous A FC term describing a switched topology, which is one of the three existing FC topologies. Fabric elements interconnect various N_Ports or NL_Ports and are responsible for frame routing. Simultaneous transmission of multiple transmissions down the SCSI path.
W wide SCSI World Wide Name (WWN) A 68 pin connector that can be single-ended or differential in implementation. A Name_Identifier which is worldwide unique, and represented by a 64-bit unsigned binary value.
258
index A address mapping 40 auto 42 auto addressing 40 indexed 41 indexed addressing 40 SCC 43 SCC addressing 40 addressing 229 FC Arbitrated Loop 35 SCSI 37 ANSI 31, 247 Arbitrated loop topology 247 assembly components FC 2/1 LV 53 FC 4/1 HV 54 installation 55 Asynchronous 247 B bridge desktop use 51 bridge benefits 24 bridge components 25 bridge features 22 config 23 mgmt 23 SCSI bus 22 buffered tape writes 38 C cables optical FC 72 choosing a location 28 communication Serial port setting up 80 configu
E H enabling DHCP 235 DHCP troubleshooting 244 Ethernet config 239 IP, subnet mask, gateway 241 HTTP interface 242 troubleshooting 243 over bridge interface 237 Serial 237 Telenet 237 Telnet 237 environmental specifications 28 event log 117 Host Bus Adapter (HBA) 250 host bus adapters 48 HP-UX config 172 HTTP Interface 129 accessing 130 main menu 133 config 134 active fabric 149 Ethernet 145 FC 136 FC to SCSI mapping 139 real-time clock 148 reset to factory 150 restore to last boot 151 SCSI 143 Serial 13
cannot turn on Fibre Bridge 191 cannot turn on library 191 cannot turn on MO jukebox 191 Ethernet 185 fault 185 Fibre Channel 185 LED indicators 184 power 184 SCSI 185 verification, basic 186 config. 188 config.
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