Compaq 166207-B21 - Smart Array 5302/32 RAID Controller User Manual
Compaq 166207-B21 - Smart Array 5302/32 RAID Controller User Manual

Compaq 166207-B21 - Smart Array 5302/32 RAID Controller User Manual

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Compaq Smart Array 5300 Controller
User Guide
Part Number 135606-004
May 2002 (Fourth Edition)

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Summary of Contents for Compaq 166207-B21 - Smart Array 5302/32 RAID Controller

  • Page 1 Compaq Smart Array 5300 Controller User Guide Part Number 135606-004 May 2002 (Fourth Edition)
  • Page 2 © 2002 Compaq Information Technologies Group, L.P. Compaq, the Compaq logo, Compaq Insight Manager, ProLiant, ROMPaq, SmartStart, SoftPaq, and StorageWorks are trademarks of Compaq Information Technologies Group, L.P. in the U.S. and/or other countries. Microsoft, MS-DOS, Windows, and Windows NT are trademarks of Microsoft Corporation in the U.S.
  • Page 3: Table Of Contents

    Contents About This Guide Important Safety Information .................... ix Symbols on Equipment...................... ix Symbols in Text........................x Text Conventions....................... xi Related Documents......................xi Getting Help........................xii Compaq Technical Support..................xii Compaq Website ......................xii Compaq Authorized Reseller ..................xiii Reader’s Comments......................xiii Chapter 1 Board Components and Features Overview of Controller Features ..................1-4...
  • Page 4 Contents Chapter 3 Installing the Hardware Preparing the Server......................3-1 Installing the Smart Array Controller................3-2 Connecting the Cables..................... 3-3 Internal Cabling for Compaq Servers ............... 3-4 External Cabling for Compaq Servers ..............3-5 Chapter 4 Updating the System Firmware Running System ROMPaq from the CD .................
  • Page 5 Contents Typical Manual Configuration Procedures in ACU..........7-16 Using CPQONLIN......................7-26 Running CPQONLIN....................7-27 Typical Manual Configuration Procedures in CPQONLIN ........7-30 Chapter 8 Installing the Device Drivers Using the Smart Array Controller Support Software CD ..........8-1 Using the SmartStart CD ....................8-1 Updating the Compaq Insight Manager Agents ..............8-2 Chapter 9 Upgrading and Replacing Options Array Accelerator ......................9-1...
  • Page 6 Contents Appendix B Electrostatic Discharge Appendix C Controller Specifications Appendix D Drive Arrays and Fault Tolerance What Is a Drive Array? ....................D-1 Fault-Tolerance Methods ....................D-5 RAID 0—No Fault Tolerance ..................D-5 RAID 1+0—Drive Mirroring ...................D-6 RAID 5—Distributed Data Guarding...............D-7 RAID ADG—Advanced Data Guarding ..............D-9 Other Fault-Tolerance Options ................D-11 Appendix E Hard Drive Installation and Replacement...
  • Page 7 Contents Appendix F Probability of Logical Drive Failure Appendix G POST Error Messages Appendix H Questions and Answers Glossary Index Compaq Smart Array 5300 Controller User Guide...
  • Page 8: About This Guide

    About This Guide This guide provides step-by-step instructions for installation, and reference information for operation, troubleshooting, and future upgrades for the Compaq Smart Array 5300 Controller. Important Safety Information Before installing this product, read the Important Safety Information document provided. Symbols on Equipment The following symbols may be placed on equipment to indicate the presence of potentially hazardous conditions:...
  • Page 9: Symbols In Text

    About This Guide This symbol indicates the presence of electric shock hazards. The area contains no user or field serviceable parts. Do not open for any reason. WARNING: To reduce the risk of injury from electric shock hazards, do not open this enclosure This symbol on an RJ-45 receptacle indicates a network interface connection.
  • Page 10: Text Conventions

    About This Guide CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. IMPORTANT: Text set off in this manner presents clarifying information or specific instructions. NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information.
  • Page 11: Getting Help

    About This Guide • Compaq ROM-Based Setup Utility User Guide (on the Documentation CD for the server, or downloadable from the Compaq website) Getting Help If you have a problem and have exhausted the information in this guide, you can get further information and other help in the following locations.
  • Page 12: Compaq Authorized Reseller

    About This Guide Compaq Authorized Reseller For the name of your nearest Compaq authorized reseller: • In the United States, call 1-800-345-1518. • In Canada, call 1-800-263-5868. • Elsewhere, see the Compaq website for locations and telephone numbers. Reader’s Comments Compaq welcomes your comments on this guide.
  • Page 13: Board Components And Features

    Board Components and Features The Compaq Smart Array 5300 Series of controllers comprises two models, the 5302 and the 5304. Model 5302 has two Wide Ultra3 SCSI channels and 128 MB of cache; model 5304 has four Wide Ultra3 SCSI channels and 256 MB of cache. You can upgrade the 5302 model to have four channels, 256 MB of cache, or both, by means of the appropriate option kits.
  • Page 14 Board Components and Features NOTE: On both controller models, ports 1 and 2 each have two connectors (one internal and one external). However, only one connector can be used per port at any given time. Ports 3 and 4 (available on the 5304) can be used only for external drives. Figure 1-2: Smart Array 5302 Controller Description Two internal 68-pin Wide SCSI connectors (port 1...
  • Page 15 Board Components and Features Figure 1-3: Two- to four-channel adapter upgrade option Figure 1-4: Array accelerator cache with batteries For details of the controller board specifications, refer to Appendix C. Compaq Smart Array 5300 Controller User Guide...
  • Page 16: Overview Of Controller Features

    Board Components and Features Overview of Controller Features • Two or four Wide Ultra3 SCSI channels, supporting up to 56 drives (4 channels, 14 drives per channel) • Support for Microsoft Windows 2000, Windows NT 4.0, Linux, Novell NetWare 5.x, and NetWare 6 operating systems •...
  • Page 17: Overview Of Array Accelerator Features

    Board Components and Features Overview of Array Accelerator Features The array accelerator is a high performance, battery-backed, 100-MHz SDRAM DIMM cache module. Array controllers use cache to store read data from the hard drives. The system can later access this read data. The controller firmware uses the read-ahead and most recently used caching algorithms.
  • Page 18: Batteries

    Board Components and Features For each of these operations, data has to be reorganized among hard drives, and must be saved to non-volatile storage during the operation. (For further details of these operations, refer to Chapter 7, Appendix D, and Appendix E.) Without battery- backed cache, the data can only be stored at empty locations within the drive array, so these operations cannot occur at all if the array is full.
  • Page 19 Board Components and Features Figure 1-5: Battery packs This data protection (and the time limit) also applies if an equipment failure or power outage occurs. When power is restored to the system, an initialization process writes the preserved data to the hard drives. The batteries are continuously recharged using a trickle-charging process whenever the system power is on.
  • Page 20: Pci System Interface

    Board Components and Features PCI System Interface Smart Array 5300 controllers interface to the server through a high-performance 64-bit PCI bus that: • Runs at 66 MHz • Provides a high-speed path (up to 528 MB/s) between the system board and the controller •...
  • Page 21 Board Components and Features • Auto-Reliability Monitoring (ARM) is a background process that scans hard drives for bad sectors in fault-tolerant logical drives. ARM also verifies the consistency of parity data in logical drives that are using RAID 5 or RAID ADG. This process assures that you can recover all data successfully if a drive failure occurs in the future.
  • Page 22 Board Components and Features • Recovery ROM is a redundancy feature that ensures continuous system availability by providing a backup ROM. This feature protects against corruption of a ROM image (caused, for example, by power fluctuation during ROM upgrade). If corruption occurs, the server automatically restarts using the remaining good copy of the ROM image.
  • Page 23: Installation Overview

    Installation Overview The details of the steps required to install the controller depend on whether the server has an operating system installed and contains data. The flowcharts in Figure 2-1 and Figure 2-2 summarize the installation procedures for the most common scenarios. Procedure for a New System Install the controller Update the system...
  • Page 24: Procedure For A Pre-Configured System

    Installation Overview Procedure for a Pre-configured System Update the system firmware Back up data (required if migrating - - - - - (Chapter 4). from a non-array controller). If the controller is to be the boot device, install the device driver for your operating system (Chapter 8).
  • Page 25: Installing The Hardware

    Installing the Hardware Preparing the Server Before installing the controller in the server, back up all data. This step is mandatory if you are moving non-arrayed SCSI drives to a Smart Array controller, because data is not preserved during a move between array controllers and non-array controllers. WARNING: To reduce the risk of personal injury or damage to the equipment, consult the safety information and user documentation provided with your computer before attempting the installation.
  • Page 26: Installing The Smart Array Controller

    Installing the Hardware 4. Unplug the AC power cord from the outlet, and then from the server. IMPORTANT: If you will be replacing a Smart controller with a Smart Array controller, see the “External Cabling for Compaq Servers” section to determine the external cabling requirements.
  • Page 27: Connecting The Cables

    Installing the Hardware Figure 3-1: Installing a Smart Array 5300 Controller NOTE: Your server may look slightly different from the one illustrated. 5. Press the controller board firmly into the slot so that the contacts on the board edge are properly seated in the system board connector. 6.
  • Page 28: Internal Cabling For Compaq Servers

    Installing the Hardware On Compaq products that support hot-pluggable drives, the SCSI IDs for peripherals are automatically set. For non-hot-pluggable devices, the IDs must be set manually by using switches or jumpers on the device itself. IMPORTANT: When replacing an existing Smart controller with a Smart Array controller without reconfiguring the arrays, all of the drives should be connected exactly as they were on the old controller (port 1 to port 1, controller 1 to controller 1, and so on).
  • Page 29: External Cabling For Compaq Servers

    Installing the Hardware The multi-device cable may have been provided with your server. If you need additional cables, order the cable option kit, Part Number 166389-B21. This cable is equipped to terminate either Wide Ultra3 or Wide Ultra2 drives. CAUTION: Cable assembly 148785-001 is included in option kit 166389-B21 and is required with Wide Ultra3 drives.
  • Page 30 Installing the Hardware Table 3-1: External SCSI Cables for Compaq Enclosures Cable Type Length Option Kit Number Cable Assembly Number VHDCI to VHDCI 1.8 m / 6 ft 341174-B21 313374-001 3.6 m / 12 ft VHDCI to VHDCI 341175-B21 313374-002 VHDCI to VHDCI 7.2 m / 24 ft 164604-B21...
  • Page 31: Updating The System Firmware

    Updating the System Firmware To update the system firmware, the Compaq System ROMPaq utility is used. NOTE: This utility is not to be confused with the Options ROMPaq utility (refer to Chapter 5), which is used to update the firmware on server options and SCSI drives. This utility has two main sources: •...
  • Page 32: Running System Rompaq From Diskette

    Updating the System Firmware Running System ROMPaq from Diskette To run System ROMPaq from diskette, you must first create a System ROMPaq diskette from the CD or from the appropriate SoftPaq file. Creating a System ROMPaq Diskette from the CD 1.
  • Page 33: Using The Diskette

    Updating the System Firmware Using the Diskette 1. With the server powered down, place the System ROMPaq diskette in the diskette drive. 2. Power up the server. 3. When the Welcome screen is displayed, press the Enter key. 4. When the Select A Device screen is displayed, select your server from the list of programmable devices, and then press the Enter key.
  • Page 34: Updating The Controller Firmware

    Updating the Controller Firmware You can update the firmware on Compaq options by using the Options ROMPaq utility. There are two versions of this utility: Options ROMPaq for Array Controllers, and Options ROMPaq for Internal (SCSI Attached) Drives. If you purchased your server with an array controller already installed, you do not need to run this utility during server installation.
  • Page 35: Running Options Rompaq From The Cd

    Updating the Controller Firmware Running Options ROMPaq from the CD 1. Place the CD in the server CD-ROM drive. 2. Restart the server. 3. When the System Utilities Menu screen is displayed, select Run Options ROMPaq, and then press the Enter key. 4.
  • Page 36: Running Options Rompaq From Diskettes

    Updating the Controller Firmware 8. When reprogramming of the controller ROM is finished, you can reprogram more options or exit the utility. — To reprogram another Compaq option, press the Enter key, and then repeat steps 5 through 7. — If you have finished reprogramming Compaq options, press the Esc key to exit the utility.
  • Page 37: Creating Diskettes Using The Softpaq File

    Updating the Controller Firmware 5. Choose Create Diskettes Only and then click Next. 6. Follow the remaining on-screen instructions to create the Options ROMPaq diskettes. 7. To complete the firmware update, follow the procedure given in the section, “Using the Diskettes.” Creating Diskettes Using the SoftPaq File 1.
  • Page 38 Updating the Controller Firmware 5. If the controller that you want to update the firmware for is on the list of programmable devices, select it and press the Enter key. (If it is not present, you are prompted to insert the remaining diskettes for devices not listed on the first diskette.) 6.
  • Page 39: Updating The System Partition

    Updating the Controller Firmware Updating the System Partition If you are installing the controller on a server that was previously configured with SCU, you must now use this utility to update the system partition. NOTE: If your server uses the ROM-Based Setup Utility (RBSU), you do not need to run SCU. SCU is provided on both the SmartStart CD and the Smart Array Controller Support Software CD.
  • Page 40: Setting The Controller Order

    Setting the Controller Order After installing the controller hardware and updating the controller firmware: • Configure the system by using either the ROM-Based Setup Utility (RBSU) or the System Configuration Utility (SCU), following the procedure given in the server user guide. •...
  • Page 41: Using Orca

    Setting the Controller Order To use RBSU: 1. Power up the server. 2. Press the F9 key when prompted during system startup. The main ROM-Based Setup Utility screen is displayed. Figure 6-1: Main ROM-Based Setup Utility screen 3. Configure your system. (For detailed instructions, refer to the Compaq ROM- Based Setup Utility User Guide.) 4.
  • Page 42 Setting the Controller Order 3. On the Option ROM Configuration for Arrays Main Menu screen, select Select as Boot Controller and follow the prompts to set the boot controller for the system. If you want to use ORCA to create logical drives at this point, you do not need to exit the utility yet.
  • Page 43: Configuring An Array

    Configuring an Array Compaq provides four utilities for configuring an array: • Option ROM Configuration for Arrays (ORCA)—a simple ROM-based configuration utility that runs on all operating systems • Array Configuration Utility (ACU)—a versatile configuration utility that provides maximum control over configuration parameters •...
  • Page 44 Configuring an Array Table 7-1: Comparison of Utilities for Configuring an Array ACU-XE CPQONLIN ORCA Uses a graphical interface Available in languages other than English Executable at any time Available on CD Uses a wizard to suggest the optimum configuration for an unconfigured controller Describes configuration errors Supports these operating systems: Windows 2000...
  • Page 45: Using Orca

    Configuring an Array Using ORCA When a computer system is powered up, part of the startup sequence is the Power-On Self-Test (POST). Any array controllers that are in the system are initialized while POST is running. If the array controller supports ORCA, POST temporarily halts and an ORCA prompt message is displayed for about five seconds.
  • Page 46: Using Acu

    Configuring an Array NOTE: ORCA allows only one array to use a given online spare. 3. Press the Enter key to accept the settings. 4. Press the F8 key to confirm your settings and save the new configuration. After several seconds, the Configuration Saved screen is displayed. 5.
  • Page 47: Running Acu From Cd

    Configuring an Array You can view context-sensitive online help for each screen by pressing the F1 key or clicking Help. The status bar at the bottom of the screen also displays messages that describe the current selection. NOTE: Raw logical drives are invisible to the operating system. To make the new logical drives available for data storage, format the logical drive using the instructions given in your operating system documentation.
  • Page 48 Configuring an Array Main ACU Screen After the configuration wizard has finished or been bypassed, the screen looks like Figure 7-2. This is the main ACU screen. Figure 7-2: Main ACU screen This screen contains the following regions: • Menu bar •...
  • Page 49 Configuring an Array Menu Bar The menu bar at the top of the main ACU screen contains the following drop-down menus: • Controller—Allows you to select a controller, refresh the screen, save or clear a configuration, create an array, or exit the program. Other menu items give access to settings, advanced features, information, and the configuration wizard.
  • Page 50 Configuring an Array Figure 7-4: Physical Configuration View window NOTE: Selecting any item in the configuration view window will cause the corresponding hard drive tray LEDs to blink. This feature is useful for identifying all physical drives in an array or logical drive, all drives on a controller, or a specific physical drive.
  • Page 51 Configuring an Array Array Box The buttons in the Array box are activated when you select an array in the configuration view window. Figure 7-7: Array box Click one of these buttons to display the Modify Drive Array screen, the Expand Array screen, or the Create Logical Drive screen.
  • Page 52 Configuring an Array Secondary Screens Controller Settings Screen To display this screen, click Settings in the Controller box (Figure 7-6) on the main ACU screen. This screen allows you to set the rebuild priority, expand priority, and accelerator read/write ratio. Figure 7-9: Controller Settings screen The settings that you select for Rebuild Priority and Expand Priority will not affect the performance of an idle system.
  • Page 53 Configuring an Array NOTE: If you optimize the Accelerator Ratio settings, you may also want to change the Stripe Size setting. For details, refer to the “Create Logical Drive Screen” section, Table 7-2, and Table 7-3. Create Drive Array Screen To display this screen, click Create Array in the Controller box (Figure 7-6) on the main ACU screen.
  • Page 54 Configuring an Array When you select a drive in one of the panels, the appropriate buttons become functional. You can select several drives at a time from the same panel, and assign or remove them all simultaneously; in this case, the buttons each show two drives. Also, if spare drives are selected in the right-hand panel, the design on the middle button changes to denote the removal of spare drives.
  • Page 55 Configuring an Array Figure 7-11: Create Logical Drive screen Three features on this screen merit further description: • Stripe Size box • Logical Drive Size box • Advanced button The Stripe Size box has a drop-down list that lets you select the width of a data stripe.
  • Page 56 Configuring an Array Table 7-3: Optimum Stripe Size for a Given Application Type of Server Application Suggested Stripe Size Change Mixed read/write Accept the default value Mainly sequential read (such Use larger stripe sizes for best as audio/video applications) performance Mainly write (such as image Use smaller stripes for RAID 5 manipulation applications)
  • Page 57 Configuring an Array Some operating systems need to use the maximum boot size to be able to create large boot partitions. For example, enabling the maximum boot size on a logical drive in the Windows NT 4.0 operating system allows you to create a bootable partition with a maximum size of 8 GB.
  • Page 58: Typical Manual Configuration Procedures In Acu

    Configuring an Array Extend Logical Drive Screen To display this screen, click Extend in the Logical Drive box (Figure 7-8) on the main ACU screen. This screen allows you to increase the capacity of a logical drive while the system is online, without disruption of data. IMPORTANT: Not all operating systems support online capacity extension.
  • Page 59 Configuring an Array 3. Create one or more logical drives on the array. For this example, assume that you have ten 9.1-GB drives connected to your controller. You want to make two arrays: • Array A: seven 9.1-GB drives with a spare, configured with RAID 5 fault tolerance •...
  • Page 60 Configuring an Array 3. Click the Assign Drive to Array button (Figure 7-15) in the middle of the screen. Figure 7-15: Assign Drive to Array button 4. Select the drive at Port 1: SCSI ID 7 and click the Assign Spare to Array button in the lower middle part of the screen.
  • Page 61 Configuring an Array The Logical Configuration View window now looks like Figure 7-17. Figure 7-17: Logical Configuration View of Example Array 6. Select the controller icon, and then click Create Array to create Array B. 7. Repeat the previous steps to assign both remaining 9.1-GB drives to array B. 8.
  • Page 62 Configuring an Array 9. Create a logical drive on Array B: a. Select the Array B icon or the Unused Space icon under Array B in the Logical Configuration View window. b. Repeat steps 2 through 7. This time, select RAID 1+0 as the fault-tolerance method in step 3.
  • Page 63 Configuring an Array During capacity expansion, ACU automatically redistributes existing logical drives across all of the physical drives in the expanded array. If the array being expanded has more than one logical drive, data is redistributed one logical drive at a time. Newly created logical drives are not available until capacity expansion has finished.
  • Page 64 Configuring an Array Now you install a 9.1-GB drive, and want to expand Array A to include this new drive. This scenario is represented in Figure 7-19. Figure 7-19: Starting an array expansion To expand Array A and create a second logical drive on this array: 1.
  • Page 65 Configuring an Array Figure 7-20: Create Logical Drives screen 6. Click Create Logical Drive. 7. Set the fault tolerance, stripe size, array accelerator, and size for the second logical drive that you want to create on Array A. 8. Click Done to return to the Create Logical Drives screen. 9.
  • Page 66 Configuring an Array The Windows NT 4.0 operating system supports online logical drive capacity extension. Some operating systems also support offline capacity extension. Before extending logical drives, check the operating system documentation for current information, or contact your operating system vendor. NOTE: The extension process takes about 15 minutes per gigabyte.
  • Page 67 Configuring an Array 8. Make the extra capacity of the logical drive available to the operating system by one of the following methods: — Create a new partition in the logical drive by using the operating system partitioning software. — Increase the size of an existing partition by using the operating system partitioning software or third-party partitioning tools.
  • Page 68: Using Cpqonlin

    Configuring an Array 5. Click Migrate in the Logical Drive box. 6. Change the RAID level by selecting the appropriate check box. 7. Change the stripe size (Table 7-3 gives the optimum stripe size for specific situations). 8. Click Done to return to the main ACU screen. If you get a message stating that the number of sectors needs to be increased: a.
  • Page 69: Running Cpqonlin

    Configuring an Array Running CPQONLIN 1. Enter at the console prompt. cpqonlin 2. Use the arrow keys to highlight Array Configuration Utility, and then press the Enter key. 3. From the list of controllers that is presented, select the one that you want to configure.
  • Page 70 Configuring an Array 2. Press the Esc key to save the changes and return to the controller selection screen. 3. Restart the system to apply the changes. NOTE: Raw logical drives are invisible to the operating system. To make the new logical drives available for data storage, format the logical drive using the instructions given in your operating system documentation.
  • Page 71 Configuring an Array Table 7-4: Menu Options in CPQONLIN CONTROLLER OPTIONS Menu Controller Settings Rebuild Priority Expand Priority Accelerator Ratio Create New Array Create Array Assign Drive Assign Array Remove Drive Accept Changes Physical Drives (Panel shows spare drives and unassigned hard drives attached to the controller) New Array (Panel shows physical view of new array)
  • Page 72: Typical Manual Configuration Procedures In Cpqonlin

    Configuring an Array Typical Manual Configuration Procedures in CPQONLIN Creating a Custom Configuration for a New Array 1. In the Logical Configuration View panel, highlight the controller that you want to configure and then press the Enter key. 2. Choose Create New Array in the Controller Options panel, and then press the Enter key.
  • Page 73 Configuring an Array Adding Spare Drives To add spare drives to an array, the array controller must have at least one attached drive that is either unassigned or is assigned as a spare to another array. You can: • Assign a different online spare to each array on the controller. •...
  • Page 74 Configuring an Array Configuring the New Logical Drive 1. In the Logical Configuration View panel, highlight the new logical drive that you want to configure, and then press the Enter key. 2. Select Fault Tolerance in the Logical Drive Options menu, and then press the Enter key.
  • Page 75 Configuring an Array 1. In the Logical Configuration View panel, select the controller that you want to configure, and then press the Enter key. 2. Select Controller Settings in the Controller Options panel, and then press the Enter key. The controller settings screen is displayed. Figure 7-23: Controller settings screen 3.
  • Page 76 Configuring an Array 2. Check that the array accelerator batteries (if present) are fully charged. 3. In the Logical Configuration View panel, select the array that you want to expand, and then press the Enter key. 4. Select Expand in the menu, and then press the Enter key. 5.
  • Page 77 Configuring an Array 6. Press the Esc key to accept the changes and begin migration. You can check the progress of the migration at any time by pressing the F3 key and then scrolling to the progress bar near the bottom of the screen. Compaq Smart Array 5300 Controller User Guide 7-35...
  • Page 78: Installing The Device Drivers

    Installing the Device Drivers The drivers for the controller are located on the Smart Array Controller Support Software CD and on the SmartStart CD. Updates are posted to www.compaq.com. Using the Smart Array Controller Support Software Instructions for installing the drivers from the Smart Array Controller Support Software CD are given in the leaflet provided with the CD.
  • Page 79: Updating The Compaq Insight Manager Agents

    Installing the Device Drivers To create CSPs: 1. Insert the SmartStart CD into the CD-ROM drive tray of a server with a bootable CD-ROM drive. The server does not need to be the one in which you are going to install the controller.
  • Page 80: Upgrading And Replacing Options

    Upgrading and Replacing Options Array Accelerator To remove the existing array accelerator board: 1. Squeeze the ends of the heat sink clip inwards (1), and then rotate the clip out of the heat sink (2). Figure 9-1: Removing the heatsink 2.
  • Page 81 Upgrading and Replacing Options 3. Rotate the clip back towards the controller board to allow room for the array accelerator board to be removed. 4. Remove the plastic retainer (1) by detaching it from the array accelerator and unhooking it from the controller board. Figure 9-2: Releasing the array accelerator board 5.
  • Page 82 Upgrading and Replacing Options Figure 9-3: Unplugging the array accelerator board To install the new array accelerator board: 1. Push the array accelerator board firmly into the DIMM connector socket. 2. Close the DIMM ejector levers to lock the array accelerator into place. 3.
  • Page 83: Battery Pack

    Upgrading and Replacing Options Battery Pack WARNING: There is a risk of explosion, fire, or personal injury if the battery pack is replaced incorrectly or mistreated. To reduce the risk: • Do not attempt to recharge the battery outside of the controller. •...
  • Page 84 Upgrading and Replacing Options Figure 9-5: Releasing the battery pack 3. Remove the pack from the array accelerator board. If the battery pack flange grasps the board tightly, rock the pack slightly from side to side while lifting the pack upward. Figure 9-6: Removing the battery pack Since both packs are likely to be discharged at a similar rate, repeat the procedure for the other battery pack.
  • Page 85 Upgrading and Replacing Options To install a new NiMH battery pack: 1. Wait about 15 seconds after removing the old battery packs to allow the battery charge monitor to reset. 2. Hook the battery pack flange onto the top of the array accelerator board, with the pack held at a 10-degree angle to the plane of the board.
  • Page 86 Upgrading and Replacing Options Figure 9-8: Securing the flange and clip Installation of the new battery pack is complete. Repeat for the other battery pack. Compaq Smart Array 5300 Controller User Guide...
  • Page 87: 2- To 4-Channel Adapter Board

    Upgrading and Replacing Options 2- to 4-Channel Adapter Board To remove the existing 2- to 4-channel adapter board: 1. Remove the screw that secures the 2- to 4-channel adapter board. This screw is reachable from the back of the controller board. Figure 9-9: Removing the securing screw Compaq Smart Array 5300 Controller User Guide...
  • Page 88 Upgrading and Replacing Options 2. Unplug the 2- to 4-channel adapter board from the connector on the controller board. Figure 9-10: Unplugging the 2- to 4-channel adapter board 3. Pull the 2- to 4-channel adapter board out of the VHDCI socket. Figure 9-11: Removing the 2- to 4-channel adapter board Compaq Smart Array 5300 Controller User Guide...
  • Page 89 Upgrading and Replacing Options To install the new 2- to 4-channel adapter board: 1. Insert the VHDCI connector on the adapter board into the unoccupied VHDCI slot (1) while sliding the adapter board under the bracket lip (2) on the occupied VHDCI slot.
  • Page 90 Upgrading and Replacing Options Figure 9-13: Securing the adapter board to the array controller board Installation of the new adapter board is complete. Compaq Smart Array 5300 Controller User Guide 9-11...
  • Page 91: Enabling Raid Adg

    Upgrading and Replacing Options Enabling RAID ADG You can enable RAID ADG on a Smart Array 5300 Controller by installing a software key. Alternatively, if you have an older version of the controller, you can install a hardware enabler module on the controller board. Using the Software Key 1.
  • Page 92: Using The Enabler Module

    Upgrading and Replacing Options For further instructions or clarifications regarding the software key installation procedure, refer to the ACU-XE online help. Using the Enabler Module The connector for the RAID ADG Enabler Module is located at the corner of the controller board near the array accelerator connector socket, as shown in Figure 9-14.
  • Page 93 Upgrading and Replacing Options Figure 9-15: Aligning the module on the controller board When replacing a Smart Array 5300 Controller, you may want to remove the RAID ADG Enabler Module from the old controller and install it onto the new controller. 9-14 Compaq Smart Array 5300 Controller User Guide...
  • Page 94 Upgrading and Replacing Options To remove the RAID ADG Enabler Module: Press the innermost plastic clip under the controller board towards the other clip (1), and push the module out of the board (2). Figure 9-16: Removing the RAID ADG Enabler Module To install the module on the new controller board: 1.
  • Page 95 Upgrading and Replacing Options 3. Use one thumb to press the tab at the top of the rear end outward (2a), while using the other thumb to gently press the other end of the module (2b) into the connector and slot on the controller board. Figure 9-17: Installing the module Installation of the RAID ADG Enabler Module is complete.
  • Page 96: Regulatory Compliance Notices

    Regulatory Compliance Notices Regulatory Compliance Identification Numbers For the purpose of regulatory compliance certifications and identification, your product has been assigned a unique Compaq series number. The series number can be found on the product nameplate label, along with all required approval markings and information.
  • Page 97: Class A Equipment

    Regulatory Compliance Notices Class A Equipment This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 98: Declaration Of Conformity For Products Marked With The Fcc Logo, United States Only

    Regulatory Compliance Notices Declaration of Conformity for Products Marked with the FCC Logo, United States Only This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
  • Page 99: Cables

    Regulatory Compliance Notices Cables Connections to this device must be made with shielded cables with metallic RFI/EMI connector hoods in order to maintain compliance with FCC Rules and Regulations. Canadian Notice (Avis Canadien) Class A Equipment This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
  • Page 100: European Union Notice

    Regulatory Compliance Notices European Union Notice Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and the Low Voltage Directive (73/23/EEC) issued by the Commission of the European Community. Compliance with these directives implies conformity to the following European Norms (the equivalent international standards are in parenthesis): •...
  • Page 101: Japanese Notice

    Regulatory Compliance Notices Japanese Notice Taiwanese Notice Compaq Smart Array 5300 Controller User Guide...
  • Page 102: Battery Replacement Notice

    Regulatory Compliance Notices Battery Replacement Notice The array accelerator on the controller is equipped with a nickel metal hydride (NiMH) battery pack. Replacement is to be performed by a Compaq authorized service provider using the Compaq spare designated for this product. WARNING: There is a risk of explosion, fire, or personal injury if the battery pack is not properly handled.
  • Page 103: Electrostatic Discharge

    Electrostatic Discharge To prevent damaging the system, be aware of the precautions you need to follow when setting up the system or handling parts. A discharge of static electricity from a finger or other conductor may damage system boards or other static-sensitive devices.
  • Page 104 Electrostatic Discharge • Use a portable field service kit with a folding static-dissipating work mat. If you do not have any of the suggested equipment for proper grounding, have a Compaq authorized reseller install the part. NOTE: For more information on static electricity, or assistance with product installation, contact your Compaq authorized reseller.
  • Page 105: Controller Specifications

    Controller Specifications Table C-1: Controller Specifications Dimensions 31.5 cm × 10.8 cm × 1.5 cm (12.4 in × 4.3 in × 0.6 in) Power required 21.2 W for 5302 (16.3 W at 3.3 V, 4.8 W at 5 V) 24.9 W for 5304 (19.0 W at 3.3 V, 5.9 W at 5 V) PCI Bus transfer rate Up to 528 MB/s SCSI Bus...
  • Page 106: Drive Arrays And Fault Tolerance

    Drive Arrays and Fault Tolerance What Is a Drive Array? The capacity and performance of a single physical (hard) drive is adequate for home users. However, business users demand higher storage capacities, higher data transfer rates, and greater protection against data loss when drives fail. Connecting extra physical drives to a system increases the total storage capacity (refer to Figure D-1), but has no effect on the efficiency of read/write (R/W) operations.
  • Page 107 Drive Arrays and Fault Tolerance With an array controller installed in the system, the capacity of several physical drives can be combined into one or more virtual units called logical drives (also called logical volumes). Then, the read/write heads of all the constituent physical drives are active simultaneously, reducing the total time required for data transfer.
  • Page 108 Drive Arrays and Fault Tolerance Figure D-3: Data striping (S1-S4) of data blocks B1-B12 For data in the logical drive to be readable, the data block sequence must be the same in every stripe. This sequencing process is performed by the array controller, which sends the data blocks to the drive write heads in the correct order.
  • Page 109 Drive Arrays and Fault Tolerance Figure D-4: Two arrays (A1, A2) containing five logical drives spread over five physical drives Each logical drive in an array is distributed over all of the physical drives within the array. A logical drive can also extend over more than one port on the same controller, but it cannot extend over more than one controller.
  • Page 110: Fault-Tolerance Methods

    Drive Arrays and Fault Tolerance For any configuration except RAID 0, further protection against data loss can be achieved by assigning a drive as an online spare (or hot spare). This drive contains no data and is connected to the same controller as the array. When any other physical drive in the array fails, the controller automatically rebuilds information that was originally on the failed drive onto the online spare.
  • Page 111: Raid 1+0-Drive Mirroring

    Drive Arrays and Fault Tolerance RAID 1+0—Drive Mirroring In this configuration, data is duplicated onto a second drive. Figure D-5: Drive mirroring of P1 onto P2 When the array has more than two physical drives, drives are mirrored in pairs. Figure D-6: Mirroring with more than two physical drives in the array Compaq Smart Array 5300 Controller User Guide...
  • Page 112: Raid 5-Distributed Data Guarding

    Drive Arrays and Fault Tolerance In each mirrored pair, the physical drive that is not busy answering other requests answers any read request sent to the array. (This behavior is called load balancing.) If a physical drive fails, the remaining drive in the mirrored pair can still provide all the necessary data.
  • Page 113 Drive Arrays and Fault Tolerance P1,2 P3,4 P5,6 P7,8 Figure D-7: Distributed data guarding, showing parity information (Px,y) Advantages • High read performance • No loss of data if one physical drive fails • More drive capacity usable than with RAID 1+0—parity information requires only the storage space equivalent to one physical drive Disadvantages •...
  • Page 114: Raid Adg-Advanced Data Guarding

    Drive Arrays and Fault Tolerance RAID ADG—Advanced Data Guarding RAID ADG is similar to RAID 5 in that parity information is generated (and stored) to protect against data loss caused by drive failure. With RAID ADG, however, two different sets of parity data are used, allowing data to still be preserved if two drives fail.
  • Page 115 Drive Arrays and Fault Tolerance Disadvantage The only significant disadvantage of RAID ADG is a relatively low write performance (lower than RAID 5), due to the need for two sets of parity data. Table D-1 summarizes the important features of the different kinds of RAID methods described here.
  • Page 116: Other Fault-Tolerance Options

    Drive Arrays and Fault Tolerance Table D-2: Choosing a RAID Method Most Important Also Important Suggested RAID Level Fault tolerance Cost effectiveness RAID ADG I/O performance RAID 1+0 Cost effectiveness Fault tolerance RAID ADG RAID 5 (RAID 0 if fault I/O performance tolerance is not required) I/O performance...
  • Page 117: Hard Drive Installation And Replacement

    Hard Drive Installation and Replacement Each SCSI channel on the controller supports up to 14 drives. Drives can be of the Wide Ultra3 or Wide Ultra2 type. Each drive on a SCSI bus must have a unique ID value in the range 0 to 15 (except ID 7, which is reserved for controller use).
  • Page 118: Recognizing Drive Failure

    Hard Drive Installation and Replacement • RAID 1+0 configurations can tolerate multiple drive failures as long as no failed drives are mirrored to one another. • RAID 5 configurations can tolerate one drive failure. • RAID ADG configurations can tolerate simultaneous failure of two drives. If more hard drives fail than the fault-tolerance method allows, fault tolerance is compromised and the logical drive fails.
  • Page 119 Hard Drive Installation and Replacement Table E-1: Hard Drive Status from LED Illumination Pattern (1) Activity (2) Online (3) Fault Meaning On, off, or On or off Flashing A predictive failure alert has been received for this drive. flashing Replace the drive as soon as possible. On, off, or OK to replace the drive online if the array is configured flashing...
  • Page 120: Compromised Fault Tolerance

    Hard Drive Installation and Replacement There are several other ways to recognize that a hard drive has failed: • The amber LED lights up on the front of a Compaq storage system if failed drives are inside. (Other problems such as fan failure, redundant power supply failure, or over-temperature conditions will also cause this LED to light up.) •...
  • Page 121: Automatic Data Recovery

    Hard Drive Installation and Replacement 1. Power down the entire system, and then power it back up. In some cases, a marginal drive will work again for long enough to allow you to make copies of important files. 2. If a 1779 POST message is displayed, press the F2 key to re-enable the logical volumes.
  • Page 122: General Aspects Of Drive Replacement

    Hard Drive Installation and Replacement • The amount of I/O activity occurring during the rebuild operation • The disk drive speed • The number of drives in the array (for RAID 5 and RAID ADG) For example, the rebuild time when using 9-GB Wide-Ultra hard drives in a RAID 5 configuration varies from ten minutes per gigabyte (for three drives) to 20 minutes per gigabyte (for 14 drives).
  • Page 123: Drive Failure During Rebuild

    Hard Drive Installation and Replacement There are several other factors to remember when replacing a hard drive: • Non-hot-pluggable drives should only be replaced while the system is powered down. • Hot-pluggable drives can be removed and replaced at any time, whether the host or storage system power is on or off.
  • Page 124 Hard Drive Installation and Replacement • Failure of a drive that is not mirrored to any other failed drives (in a RAID 1+0 configuration) • Failure of a second drive in a RAID ADG configuration Minimizing Fatal System Errors During Rebuild When a hard drive is replaced, the controller gathers fault-tolerance data from the remaining drives in the array.
  • Page 125: Moving Drives And Arrays

    Hard Drive Installation and Replacement — In RAID 1+0 configurations, any drives that are not mirrored to other removed or failed drives can be simultaneously replaced offline without data loss. Moving Drives and Arrays You can move drives to other ID positions on the same array controller. You can also move a complete array from one controller to another (even if the controllers are on different servers).
  • Page 126: Upgrading Hard Drive Capacity

    Hard Drive Installation and Replacement 2. Power down the system. 3. Move the drives. 4. Power up the system. A 1724 POST message is displayed, indicating that drive positions were changed and the configuration was updated. CAUTION: If a 1785 (Not Configured) POST message is displayed, power the system down immediately to avoid data loss, and then return the drives to their original locations.
  • Page 127: Expanding And Extending Capacity

    Hard Drive Installation and Replacement When all drives have been replaced, you can use the extra capacity to create new logical drives or extend existing logical drives. Expanding and Extending Capacity Array capacity expansion is the addition of physical drives to an array and the redistribution of the pre-existing logical drives over the enlarged array.
  • Page 128 Hard Drive Installation and Replacement Capacity expansion is carried out using one of the utilities described in Chapter 7. For reconfiguration to occur online (that is, without shutting down the operating system), the configuration utility must be running in the same environment as the normal server applications.
  • Page 129: Probability Of Logical Drive Failure

    Probability of Logical Drive Failure The probability that a logical drive will fail depends on the RAID level setting. • A RAID 0 logical drive fails if only one physical drive fails. • For a RAID 1+0 logical drive, the failure situation is complex. —...
  • Page 130 Probability of Logical Drive Failure RAID 0 RAID 5 RAID 1+0 RAID ADG Total number of physical drives in array Figure F-1: Relative probability of logical drive failure Compaq Smart Array 5300 Controller User Guide...
  • Page 131: Post Error Messages

    POST Error Messages Smart Array controllers produce diagnostic error messages at reboot. Many of these Power-On Self-Test (POST) messages are self-explanatory and suggest corrective actions for troubleshooting. Detailed information about these messages is given in Table G-1. Table G-1: POST Error Messages Message Description Meaning and Recommended Action...
  • Page 132 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1720 Slot x drive array – S.M.A.R.T. hard The indicated drive has reported a drive detects imminent failure: SCSI S.M.A.R.T. predictive-failure condition. It port x: SCSI ID y may fail at some time in the near future.
  • Page 133 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1728 Slot x drive array – abnormal shutdown This message should never occur unless detected with write cache enabled. the write cache is somehow enabled on a controller that does not have batteries.
  • Page 134 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1758 Slot x drive array – array accelerator The size of the array accelerators is size mismatch between controllers. different between two controllers in a 64MB array accelerator should be redundant controller configuration.
  • Page 135 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1768 Slot x drive array – resuming logical No action required. This message appears drive expansion process. whenever a controller reset or power cycle occurs while array expansion is in progress. 1769 Slot x drive array –...
  • Page 136 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1776 Slot x drive array – SCSI bus The internal and external connectors of the termination error – internal and specified SCSI port(s) are both attached to external drives cannot both be drives.
  • Page 137 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1779 Slot x drive array – replacement If this message appears and drive x has not drive(s) detected or previously failed been replaced, an intermittent drive failure drive(s) now appear to be operational: has occurred.
  • Page 138 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1785 Slot 1 Drive Array not Configured (may (1) Turn off the system and check SCSI be followed by one of the following cable connections to be sure that drives are messages): attached properly.
  • Page 139 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1786 Slot x Drive Array Recovery Needed. The message normally appears when a The following SCSI drive(s) need drive is replaced in a fault-tolerant Automatic Data Recovery: SCSI port configuration when the system is powered (y): SCSI ID (x) down.
  • Page 140 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1788 (1) Slot x drive array reports incorrect (1) The drives indicated were installed in drive replacement. The following SCSI the wrong place, so they have been drive(s) should have been replaced: disabled.
  • Page 141 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1793 Slot x drive array – array accelerator While the system was in use, power was battery depleted. Data in array interrupted while data was in the array accelerator has been lost.
  • Page 142 POST Error Messages Table G-1: POST Error Messages continued Message Description Meaning and Recommended Action 1798 Slot x drive array – array accelerator Replace the array accelerator or the Smart write error occurred. Array accelerator Array controller. Restore data from backup. is disabled.
  • Page 143: Questions And Answers

    Questions and Answers Q: How many Smart Array 5300 Controllers can I install in my system? A: The maximum number of controllers that you can install in your system depends on your server and several other factors specific to your configuration. Generally, the maximum number is restricted to the number of PCI slots not used for other peripherals.
  • Page 144 Questions and Answers Q: I installed the hard drives in my server. Must I now terminate each drive? A: No. If you installed hard drives in a server with a Smart Array controller, the I/O board and the hot-plug backplane in the server meet all termination requirements. Individual hot-pluggable drives should already have termination removed.
  • Page 145 Questions and Answers Q: I am planning to install several hard drives in my Compaq servers. Can I install each drive in any drive bay? A: Yes, you may install these drives in any drive bay; they do not need to be installed in contiguous bays.
  • Page 146 Questions and Answers Also, Compaq offers a unique Pre-Failure Warranty for all drives—valid only when using Compaq drives, Compaq array controllers, and Compaq Insight Manager. Contact your dealer for more information about the Compaq Pre-Failure Warranty. Q: Why do the drive activity LEDs light up on some drives when my system is idle? A: The Smart Array controller performs several different background activities on the drives when the controller is otherwise idle.
  • Page 147 Glossary ACU (Array Configuration Utility) A configuration utility useful both for novices and for more experienced RAID users. Obtained either from the SmartStart CD or as a download from the Compaq website. ADU (Array Diagnostic Utility) A diagnostic tool that collects comprehensive information about the array controllers in a system and lists any problems detected.
  • Page 148 Glossary Automatic Data Recovery Also known as rebuild. A process that automatically reconstructs data from a failed drive and writes it onto a replacement drive. Rebuild time depends on several factors, but at least 15 minutes should be allowed per gigabyte. cache A high-speed memory component, used to store data temporarily for rapid access.
  • Page 149 Glossary data guarding See RAID. data striping Writing data to logical drives in interleaved chunks (by byte or by sector). This technique improves system performance. drive mirroring See RAID. ECC (error correction and checking) memory A type of memory that checks and corrects single-bit or multi-bit memory errors (depending on configuration) without causing the server to halt or corrupt data.
  • Page 150 Glossary online spare Also known as a hot spare, this is a drive in a fault-tolerant system that normally contains no data. When any other drive in the array fails, the controller automatically rebuilds the missing data that was on the failed drive onto the online spare. The controller constructs the missing data from the duplicate or parity data that is on the remaining drives in the array.
  • Page 151 Glossary SE (single-ended) A type of SCSI signaling that allows a maximum transfer rate of 40 MB/s. Conforms to the Wide-Ultra SCSI standard. Now being phased out in favor of LVD technology. S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) Technology co-developed by Compaq and the hard drive industry that provides warning of imminent drive failure.
  • Page 152 Glossary VHDCI (Very High Density Cable Interconnect) A type of external SCSI connector used by Ultra SCSI controllers. Wide-Ultra; Wide Ultra2; Wide Ultra3 A set of SCSI standards that support maximum signal transfer rates of 40 MB/s, 80 MB/s, and 160 MB/s, respectively. Glossary-6 Compaq Smart Array 5300 Controller User Guide...
  • Page 153 Index advanced data guarding (RAID ADG) D-9 alert drive failure 1-9 accelerator ratio setting predictive failure E-3 in ACU 7-10 ARM (Auto-Reliability Monitoring) 1-9, in CPQONLIN 7-32 ACU (Array Configuration Utility) array adding spare drive with 7-18 adding hard drives to 7-20, E-11 array capacity expansion with 7-20 creating, with ACU 7-16 comparison of, with other configuration...
  • Page 154 Index array capacity expansion board description of E-11 components 1-2 using ACU 7-20 specifications C-1 using CPQONLIN 7-33 boot controller, setting 6-1 Array Configuration Utility See ACU boot partition 7-15 array controller boot size, changing 7-14 configuration of 7-1 boot straps, using B-1 dimensions of C-1 driver installation for 8-1 duplexing of D-11...
  • Page 155 Index capacity upgrade of hard drives E-10 installation of 2-1, 3-1 CD-ROM drives, support for H-1 interface of, with server 1-8 channel adapter board multiple, using H-1 illustrated 1-3 number of, supported per system H-1 Compaq authorized reseller xiii performance of, optimizing, in Compaq Insight Management Agents 8-2 NetWare 5-6 Compaq Insight Manager...
  • Page 156 Index data reliability features error messages ECC memory 1-6 1724 E-10 general 1-8 1785 E-10 data stripes, defined D-2 1794 1-7 data transfer rate C-1, H-2 Internal Error Has Occurred 7-4 Declaration of Conformity A-3 Not Configured E-10 default stripe size 7-13 POST, table of G-1 device driver installation 8-1 ESD (electrostatic discharge) B-1...
  • Page 157 Index supported, list of 1-8 replacing drive after E-7 fault tolerance See also RAID methods upon replacement, possible cause E-7 alternative methods of D-11 hard drive status LEDs changing level of, in ACU 7-25 activity of, when idle H-4 changing level of, in CPQONLIN 7-34 interpreting pattern of E-3 compromised E-4 hard drives...
  • Page 158 Index linear memory 5-6 load balancing, defined D-7 installing location of other guides xi adapter board 9-8 logical drive capacity extension array accelerator 9-1 description of E-11 batteries 9-4 procedure for 7-23 cache 9-1 logical drives controller hardware 3-1 compared to array D-3 controller, flowcharts for 2-1 creation of, with ACU 7-19 CPQONLIN 7-26...
  • Page 159 Index memory NetWare Online Array Configuration allocation of, to cache, in ACU 7-10 Utility See CPQONLIN allocation of, to cache, in no fault tolerance (RAID 0) D-5 CPQONLIN 7-32 non-Compaq hard drives H-3 array accelerator 1-6 ECC SDRAM 1-6 linear 5-6 offset VHDCI, illustration of 3-5 required amount of, for stripe size online capacity extension, operating systems...
  • Page 160 Index overview when replacing drives E-6, E-8 of controller features 1-4 predictive failure alert of installation process 2-1 description of 1-9 occurence of E-3 online spare in 1-9 Pre-Failure Warranty H-3 parity data protecting data in RAID 5 D-7 alternative methods D-11 in RAID ADG D-9 RAID methods D-4 part numbers for cables 3-5, 3-6...
  • Page 161 Index recovering data, general information for E-4 options, updating 5-1 Recovery ROM 1-10 Recovery 1-10 regulatory compliance notices A-1 system, updating 4-1 replacing ROM-Based Setup Utility (RBSU) 6-1 adapter board 9-8 ROMPaq array accelerator 9-1 Options ROMPaq 5-1 System ROMPaq 4-1 batteries 9-4 cache 9-1 existing controller 3-2...
  • Page 162 Index SoftPaq file RAID methods 1-4 location of 4-1 stripe sizes 7-13 Options ROMPaq diskettes from 5-4 tape drives 1-4, H-1 System ROMPaq diskette from 4-2 symbols in text x spare drives symbols on equipment ix adding to array, using ACU 7-18 system configuration 6-1 adding to array, using CPQONLIN 7-31 System Configuration Utility 5-6...
  • Page 163 Index system firmware 4-1 VHDCI connector on board, illustration system partition 5-6 of 1-2 upgrading volume, creating, in NetWare 5-6 array accelerator 9-1 cache 9-1 hard drive capacity E-10 website, Compaq xii utilities Wide Ultra2 SCSI, support for 1-8 ACU 7-1 Wide Ultra3 SCSI ACU-XE 7-1 cable, part number for 3-5...

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