Smart Array 431 Controller User Guide First Edition (September 1999) Part Number 146915-001 Compaq Computer Corporation
Notice The information in this publication is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.
Contents About This Guide Text Conventions........................................................................................................ix Symbols in Text...........................................................................................................x Symbols on Equipment...............................................................................................xi Getting Help ...........................................................................................................
iv Compaq Smart Array 431 Controller User Guide Chapter 2 Installation Preparation Option Kit Contents ................................................................................................. 2-2 SmartStart and Support Software CD ............................................................... 2-2 Controller Products Documentation CDs.......................................................... 2-2 Hardware and Software Installation Guidelines.......................................................
About This Guide v Chapter 5 Running the System Configuration Utility System Configuration Utility on CD ....................................................................... 5-2 System Configuration Diskettes ....................................................................... 5-2 Starting the System Configuration Utility ............................................................... 5-3 Configuring the Controller.......................................................................................
vi Compaq Smart Array 431 Controller User Guide Installing the Operating System Drivers continued SCO OpenServer 5................................................................................................. 7-10 Getting the Driver and Installation Information............................................. 7-10 Creating the EFS Diskettes ............................................................................. 7-10 Accessing the Information ...........................................................
About This Guide vii Appendix B Electrostatic Discharge Preventing Electrostatic Damage.............................................................................B-1 Grounding Methods .................................................................................................B-2 Appendix C Specifications Appendix D Understanding Drive Arrays What is a Drive Array? ............................................................................................D-1 Drive Arrays ..........................
viii Compaq Smart Array 431 Controller User Guide Appendix F Recovering from Drive Failure Recognizing a Drive Failure .................................................................................... F-1 Fault Tolerance and Drive Failure ........................................................................... F-2 A Non-Fault-Tolerant (RAID 0) Logical Drive................................................ F-2 A RAID 1 (Mirroring) Logical Drive ..........................................................
About This Guide This guide is designed to be used as step-by-step instructions for installation and as a reference for operation, troubleshooting, and future upgrades. WARNING: To reduce the risk of personal injury from electrical shock and hazardous energy levels, only authorized service technicians should attempt to install this equipment. Consult the Safety Information and User documentation provided with your computer before attempting this installation.
x Compaq Smart Array 431 Controller User Guide Menu Options, Command Names, Dialog Box Names These elements appear in initial capital letters. COMMANDS, DIRECTORY NAMES, and DRIVE NAMES These elements appear in uppercase. Type When you are instructed to type information, type the information without pressing the Enter key. Enter When you are instructed to enter information, type the information and then press the Enter key. Symbols in Text These symbols may be found in the text of this guide.
About This Guide xi Symbols on Equipment These icons may be located on equipment in areas where hazardous conditions may exist. Any surface or area of the equipment marked with these symbols indicates the presence of electrical shock hazards. Enclosed area contains no operator serviceable parts. WARNING: To reduce the risk of injury from electrical shock hazards, do not open this enclosure. Any RJ-45 receptacle marked with these symbols indicates a Network Interface Connection.
xii Compaq Smart Array 431 Controller User Guide Compaq Technical Support You are entitled to free hardware technical telephone support for your product for as long you own the product. A technical support specialist will help you diagnose the problem or guide you to the next step in the warranty process. In North America, call the Compaq Technical Phone Support Center at 1 1-800-OK-COMPAQ . This service is available 24 hours a day, 7 days a week.
Chapter 1 Features The Compaq Smart Array 431 Controller is a single-channel, 64-bit PCI array controller that is part of the Compaq Smart Array family of controllers. It supports Wide Ultra3 SCSI technology for faster data transfer rates (160-MB/s, and is backward compatible with the Wide Ultra2 and Wide-Ultra SCSI-devices.) The Smart Array 431 Controller supports one SCSI channel that can be accessed through either the external VHDCI connector or the internal 68-pin Wide SCSI connector.
1-2 Compaq Smart Array 431 Controller User Guide ■ 64-bit PCI Bus Master interface ■ 16-MB of d-RAM used for code data and non-battery backed read cache ■ Forward upgradability to the Compaq Smart Array 3200 or 4200 Controller ■ Support for offline drive and array movement ■ Online capacity expansion ■ Logical drive extension ■ RAID level migration ■ Stripe-size migration ■ Easy-to-use Array Configuration Utilities NOTE: If higher performance, higher availability, or higher capacity is req
Features 1-3 Smart Array 431 Controller The Smart Array 431 Controller interface to the server is a Peripheral Component Interface (PCI) bus. The PCI bus is a high-performance, 64-bit bus with multiplexed address and data lines, and includes a parity signal. It provides a high-speed (up to 264 MB/s) path between the system board and the Array Controller. The Smart Array 431 Controller is a PCI Bus Master device and conforms to Rev. 2.2 of the PCI Local Bus Specification. 1 2 Figure 1-1.
1-4 Compaq Smart Array 431 Controller User Guide Drive Arrays RAID technology distributes data across a series of hard drives to unite physical drives into one or more logical drives. Distributing the data makes it possible to access data concurrently from multiple drives in the array, yielding I/O rates faster than non-arrayed drives. Each logical drive in the array may be set to a different fault-tolerant configuration.
Features 1-5 Drive Movement An array of drives can be moved from one system to another as long as the relative order of the drives is maintained. For more information, see Chapter 6, “Array Configuration Utilities.” Read-Cache Memory The Smart Array 431 Controller has 16-MB of d-RAM used for code data and non-battery backed read cache.
1-6 Compaq Smart Array 431 Controller User Guide LVD and SE Signaling Both Wide Ultra3 and Wide Ultra2 SCSI devices use Low Voltage Differential (LVD) signaling on the SCSI bus. LVD allows devices to run at higher speeds and at longer distances. Wide-Ultra SCSI devices use Single Ended (SE) signaling on the SCSI bus, which is an older technology. LVD and SE signaling are not supported concurrently on the same SCSI bus.
Features 1-7 Array Configuration Utility (ACU) The Compaq Array Configuration Utility is an easy-to-use graphical configuration utility to help you set up and change drive array configurations. ACU contains configuration Wizards for those with little knowledge of RAID technology, and also has advanced paths for those experienced RAID users.
Chapter 2 Installation Preparation This chapter provides the following information: ■ Option Kit contents ■ Hardware and software installation guidelines ■ Guidelines for making changes to your current installation Read this chapter before you begin the installation process. See Chapter 4, “Hardware Installation and Cabling Information,” for Cabling information.
2-2 Compaq Smart Array 431 Controller User Guide Option Kit Contents Figure 2-1 identifies the major components included in the Smart Array 431 Controller Option Kit. 1 2 3 4 Figure 2-1.
Installation Preparation 2-3 Hardware and Software Installation Guidelines For first-time installations, the following steps must be performed in the order listed. If you are upgrading from an existing array controller, see the following section, “Guidelines for Making Changes to Current Installation.
2-4 Compaq Smart Array 431 Controller User Guide Guidelines for Making Changes to Current Installation This section provides guidelines for: ■ Installing multiple Smart Array 431 Controllers ■ Installing or replacing drives in your Compaq server ■ Determining maximum storage capacity ■ Changing the fault tolerance ■ Moving drives ■ Moving arrays ■ Restoring an array to its original controller Installing Multiple Smart Array 431 Controllers When you install more than one Smart Array 431 Array
Installation Preparation 2-5 Drive Considerations If you will be installing or replacing drives in your Compaq server, keep in mind that: ■ Drives may be Wide Ultra3 SCSI, Wide Ultra2 SCSI or Wide-Ultra SCSI-3. To maximize performance, the drives must all be the same type. ■ Drives on a single SCSI bus may be internal or external, but not both. ■ Drives should not contain termination. Compaq servers and internal cabling provide the required termination of the SCSI bus.
2-6 Compaq Smart Array 431 Controller User Guide Expanding the Capacity of an Array Provided below is an overview of the procedures to expand the capacity of an array. 1. Back up data. Although data should not be lost during a normal capacity expansion, it is a good idea to back up all data in the array that you will be expanding. This backup may also be used to return to the original configuration if necessary. 2. Add drives.
Installation Preparation 2-7 Moving Drives Offline Drives can be moved to alternate SCSI ID positions on the same array controller as long as no drives are failed. To move drives, the following conditions must be met: ■ Controller firmware should be the revision that shipped with your unit or higher. Refer to the Smart Start and Support Software CD included in this kit. ■ System power is OFF (includes all system components).
Chapter 3 Updating the Firmware The ROMs on all Compaq servers and most Compaq options can be updated easily. This is done by flashing the ROM using a special Compaq utility called ROMPaq, which replaces the existing contents of the ROM with another version stored in a disk file. This is a convenient way to distribute new firmware to keep Compaq products updated with the latest capabilities.
3-2 Compaq Smart Array 431 Controller User Guide ROMPaq Diskettes The ROMPaq utilities must be run from diskette(s). The latest version of the ROMPaq diskettes may be created from the Compaq SmartStart and Support Software CD that was supplied in the Smart Array 431 Controller Option Kit. We recommend that you initially use this version of ROMPaq because it supports your new Smart Array 431 Controller.
Updating the Firmware 3-3 Running System ROMPaq System ROMPaq is used to update the firmware in Compaq servers. The Smart Array 431 Controller has enhanced drive array capabilities; many existing servers may not be able to take advantage of these capabilities without updated firmware. Since it is difficult to determine when the firmware needs to be updated, Compaq recommends that you run the latest System ROMPaq on all servers when installing a new Smart Array 431 Controller.
3-4 Compaq Smart Array 431 Controller User Guide 6. Review the information on the Caution screen: Device to reprogram: Current ROM revision: Selected ROM revision: your server date of existing ROM version date of ROM version to be installed Press Enter to reprogram the system ROM or Esc to discontinue reprogramming and return to the Select An Image screen. 7. “Reprogramming Firmware” indicates that the system ROM is being reprogrammed. DO NOT INTERRUPT THIS PROCESS.
Updating the Firmware 3-5 To run Options ROMPaq: 1. Locate the diskette containing the Options ROMPaq and place it into the server floppy drive. 2. Boot the server by turning on the power. 3. Press Enter at the Welcome screen. 4. At the Select A Device screen select: ALL COMPAQ Smart Array 431 Controller(s) from the list of programmable devices. Press Enter. 5.
3-6 Compaq Smart Array 431 Controller User Guide CAUTION: Do not interrupt this cycle. Interrupting the ROM reprogramming will leave the firmware in an unknown state. If this happens you may not be able to reprogram the ROM and the Smart Array 431 Controller ROM may have to be replaced. You will be notified when reprogramming is completed. 8. When Options ROMPaq is finished reprogramming the Smart Array 431 Controller ROM, press Enter if you want to reprogram another Compaq option.
Chapter 4 Controller Installation and Cabling Information This chapter provides instructions to install and connect a Compaq Smart Array 431 Controller into Compaq Servers. See Table 2-1 for supported server information.
4-2 Compaq Smart Array 431 Controller User Guide Preparing the Server To prepare the server for Smart Array 431 Controller installation: 1. Perform a normal system shutdown. CAUTION: If you will be moving non-arrayed SCSI drives to the Smart Array 431 Controller, you must first back up all of your data. Data is not preserved when drives are moved between array controllers and non-array controllers.
Controller Installation and Cabling Information 4-3 4. Secure the board in place with the retaining screw, if necessary. Figure 4-1. Installing the Smart Array 431 Controller into a Compaq server NOTE: Your server’s appearance may differ slightly from the server illustrated in Figure 4-1. SCSI Port Utilization This section provides cabling information for installing and changing the SCSI cabling within the server.
4-4 Compaq Smart Array 431 Controller User Guide SCSI Termination All SCSI buses require termination on both ends of the bus to prevent signal degradation. The Smart Array 431 Controller supplies the termination on the origination end of the SCSI bus. Termination for the opposite end of the bus is either provided by the internal SCSI cable or by the backplane. Therefore, individual SCSI drives in Compaq servers should not contain bus termination.
Controller Installation and Cabling Information 4-5 ■ Use the internal point to point SCSI cable provided with your server. ■ Attach the point to point SCSI cable from Port 1 of the Smart Array 431 Controller to the hot-plug drive cage. Non-Hot-Plug Drives ■ Install the non-hot-plug drives into the server’s removable media bays. NOTE: For additional non-hot-plug drive installation instructions, consult the original installation documentation that accompanied your drives.
4-6 Compaq Smart Array 431 Controller User Guide External SCSI Connections If you are connecting the Smart Array 431 Controller to a Compaq Storage Enclosures, use an external Offset VHDCI to Wide SCSI cable. IMPORTANT: Port 1 cannot be used for both internal and external drives concurrently External Cables All Compaq ProLiant Storage System Tower models include 6 foot external SCSI cables, and all Compaq ProLiant Storage System Rack-Mount models include 12 foot external SCSI cables.
Controller Installation and Cabling Information 4-7 External HD 68 SCSI Non-Offset VHDCI Internal HD 68 SCSI Offset VHDCI Figure 4-3.
4-8 Compaq Smart Array 431 Controller User Guide Table 4-2 External SCSI Cables for Compaq Enclosures Cable Description Option Kit Number Cable Assembly Number External 6-ft. Offset VHDCI to Wide SCSI cable 341176-B21 313375-001 External 12-ft.Offset VHDCI to Wide SCSI cable 341177-B21 313375-002 External 6-ft. Offset VHDCI to Offset VHDCI SCSI cable 341174-B21 313374-001 External 12-ft.
Controller Installation and Cabling Information 4-9 Completing the Installation Replace the access panel and secure it with the thumbscrews, as required. NOTE: The server will not operate with the access panel removed. This is necessary to protect thermally sensitive components by providing the proper air flow through the server and to prevent contact with hazardous energy during servicing. Figure 4-4.
4-10 Compaq Smart Array 431 Controller User Guide Figure 4-6.
Chapter 5 Running the System Configuration Utility The Compaq System Configuration Utility is used to configure the hardware installed in or connected to the server. This utility allows the server to know how each piece of hardware is to be handled when communicating with it.
5-2 Compaq Smart Array 431 Controller User Guide System Configuration Utility on CD The Compaq System Configuration Utility can be run directly from the Compaq SmartStart and Support Software CD supplied with the Smart Array 431 Controller Option Kit and with the Compaq server. You may already have a version of the System Configuration Utility in the system partition of the boot disk; however, it must be version 4.3 or later to support the 431.
Running the System Configuration Utility 5-3 Starting the System Configuration Utility To start the System Configuration Utility: 1. Place the Compaq SmartStart and Support Software CD in the server CD-ROM drive. or Place the System Configuration Utility diskette 1 in the server diskette drive. 2. Reboot the server. During the boot process, several messages display. Among these will be a notice that one or more Smart Array 431 Controllers were detected. 3. If prompted, press F1 to resume booting. 4.
5-4 Compaq Smart Array 431 Controller User Guide Configuring the Controller Edit these parameters for the Smart Array 431 Controller: Controller Order Press Enter to select the parameter to edit. To help you make the correct selections, a brief explanation of the parameters follows. Controller Order Select the order in which you want this Smart Array 431 Controller to be recognized. All hard disk controllers, including the integrated controller on the system board, must be assigned a unique order number.
Chapter 6 Array Configuration Utilities Compaq has provided two different mechanisms for configuring your array controller depending on your unique requirements. The decision as to which utility to use should be based on your knowledge level of RAID technology and how much control you need over the physical configurations.
6-2 Compaq Smart Array 431 Controller User Guide Array Configuration Utility (ACU) ■ Has configuration Wizards for novices and advanced paths for experienced RAID users ■ Requires the SmartStart and Support Software CD to boot ■ Can configure any number of logical drives ■ Has full control over the physical configuration ■ Can be executed at a later time even after other utilities have run ■ Runs online under Microsoft Windows NT 4.0 or Novel NetWare (using CPQONLIN.
Array Configuration Utilities 6-3 Starting the Option Rom Configuration for Arrays Utility Part of the power-on sequence of a computer system if the Power On Self Test (POST). During this process any array controllers in the system will be initialized. Any array controller that supports ORCA will provide a prompt to the computer system console as part of the initialization process, providing all of the restrictions are met.
6-4 Compaq Smart Array 431 Controller User Guide Deleting a Logical Drive If there is a single existing logical drive already configured on the array controller, you will be given the option to delete the logical drive. ■ Press F3 to delete the logical drive And ■ ESC to exit the utility Confirmation Screen The Confirmation screen is shown as a pop-up panel on top of the last screen. You have selected a logical drive with a total data size of 8.6GB and RAID 5 fault tolerance.
Array Configuration Utilities 6-5 The Array Configuration Utility, which is located on the SmartStart and Support Software CD, is a graphics-based application that helps you configure the Compaq Smart Array 431 Controller. You can use the Array Configuration Utility to configure the Smart Array 431 Controller initially or to reconfigure your array controller.
6-6 Compaq Smart Array 431 Controller User Guide Starting the Array Configuration Utility You can access and start the Array Configuration Utility in two ways: from the SmartStart and Support Software CD or from online. SmartStart and Support Software CD You can run the Array Configuration Utility directly from the SmartStart and Support Software CD. 1. Insert the SmartStart and Support Software CD in the CD drive and power up the server. A menu is displayed. 2. Select the Array Configuration Utility.
Array Configuration Utilities 6-7 Configuration Wizards When you start the Array Configuration Utility, the software checks the configuration of each Smart Array 431 Controller board and its drive arrays. If the arrays are unconfigured or if the configuration is less than optimal, the configuration wizard takes over to guide you through the configuration process.
6-8 Compaq Smart Array 431 Controller User Guide Configuration Procedures Creating a New Array If you are configuring a new array, the configuration wizard leads you through the process. If you want to bypass the wizard, use the following procedures to create your array. Creating a New Array—Procedure Creating a new array involves the following general steps: 1. Choosing a controller for the array. 2. Grouping physical drives of the same size into an array. 3.
Array Configuration Utilities 6-9 3. Click the Controller Settings button shown in Figure 6-4. Figure 6-4. Controller buttons The Controller Settings screen is displayed, as shown in Figure 6-5. 4. Select the correct operating system on the Controller Settings screen. Figure 6-5.
6-10 Compaq Smart Array 431 Controller User Guide Step 2: Grouping physical drives of the same size into an array 1. Click the Create Array... button. The Create Drive Array screen is displayed. Figure 6-6. Create Array screen 2. Select the three drives you want to make up the array from the drives on the left. Always group physical drives of the same size. The Smart Array 431 Controller treats all the drives as the same size as the smallest drive in the same array.
Array Configuration Utilities 6-11 Figure 6-7. Example Array A NOTE: The same spare drive may be assigned to multiple arrays. However, spare drives should have the same or greater capacity as the drives in the array. 4. Click the Done button to return to the Main Configuration screen. The Logical Configuration View area should now look similar to the following figure.
6-12 Compaq Smart Array 431 Controller User Guide Figure 6-8. Example Array - Logical Configuration View with 1 Array 5. Select the controller, and then select the Create Array button to create Array B. 6. Assign both 9.1-GB drives to the array. Click the Done button. Step 3: Creating logical drives across the physical drives. When creating a logical drive, you can select a fault tolerance (RAID level) option and provide information regarding the drive size and array accelerator. 1.
Array Configuration Utilities 6-13 Figure 6-9. Create Logical Drive screen 3. In the upper-left area of this screen, click the Distributed Data Guarding (RAID 5) button. 4. The Logical Drive Size area shows a graphical representation of the storage capacity available. To create a single logical drive across this array, accept the default values. See the section titled “Create Logical Drive Screen” later in this chapter for a detailed description of this screen. 5. Click the Done button. 6.
6-14 Compaq Smart Array 431 Controller User Guide 8. The Logical Configuration View screen should appear like the following figure. Figure 6-10. Example Array - Configuration View screen Capacity Expansion Capacity expansion involves adding storage capacity to an array that has already been configured. If an existing array is nearly full of data, you can expand the capacity without disturbing the existing data.
Array Configuration Utilities 6-15 Expanding Array Capacity—Procedure To bypass the configuration wizard, follow these steps to expand your array: 1. Install the new physical drive(s). NOTE: Always group physical drives of the same size. If you mix drive sizes, the capacity of the larger drives is wasted. 2. Assign the new physical drive(s) to an existing array. Existing logical drive(s) will automatically expand across the physical drives, including the newly added one(s). 3.
6-16 Compaq Smart Array 431 Controller User Guide 1. Select Array A. 2. Click the Expand button. 3. Select the unassigned 4.3-GB drive. 4. Click Assign Drive(s) to Array. 5. Click the Next button at the bottom of the screen. A screen similar to the following figure is displayed. Figure 6-12. Expansion wizards – Logical Drive screen 6. Click the Create Logical Drive button. 7. Set the fault tolerance, array accelerator, stripe size, and size for Logical Drive 2. 8. Click the Done button. 9.
Array Configuration Utilities 6-17 CAUTION: In case of power loss, capacity expansion process information is temporarily stored in the Array Accelerator memory. To prevent the loss of data in the expanding logical drive, do not interchange Smart Array 431 controllers or Array Accelerator boards during a capacity expansion process. Capacity Extension Logical drive extension allows you to increase the size of existing logical drives without disturbing the data on those logical drives.
6-18 Compaq Smart Array 431 Controller User Guide Extending Array Capacity — Procedure To extend the capacity of a logical drive: 1. Click the logical drive that you want to extend. 2. Click Drive menu. 3. Select Extend Logical Drive. 4. Choose a larger size for the logical drive. 5. Click Done. 6. Save the logical drive by clicking the Controller menu and selecting Save Configuration option. The logical drive will be restructured so that its data will be preserved.
Array Configuration Utilities 6-19 Figure 6-13. Extend Logical Drive screen 4. Click the slider control to change (increase) the size of the logical drive. NOTE: You cannot reduce the size of the logical drive from this screen. 5. Click Done. 6. Save the logical drive by clicking the Controller menu and selecting the Save Configuration option. The logical drive will be restructured so that its data will be preserved. Refer to the status gauge at the lower right of the screen to monitor the progress.
6-20 Compaq Smart Array 431 Controller User Guide Online Migration Use the Online RAID Level or Stripe Size Migration screen to: ■ Reconfigure a currently configured logical drive to a new fault tolerance (RAID) level ■ Change an existing logical drive’s stripe size to a new stripe size Both can be done online without causing any data loss.
Array Configuration Utilities 6-21 Figure 6-14. RAID and Stripe Size screen 4. Click the (RAID 5) Distributed Data Guarding option button. 5. The stripe size can be left at the default for the selected RAID level, or set to another value. In this example, 16 KB is selected. 6. Click Done. 7. Save the logical drive by selecting the Controller menu, and selecting the Save Configuration option. The logical drive will be restructured so that its data will be preserved.
6-22 Compaq Smart Array 431 Controller User Guide Array Configuration Utility Screens Main Configuration Screen The main configuration screen is the first screen displayed after the configuration wizards have been completed. As you select certain items, some areas are highlighted while others appear gray. You cannot select grayed-out areas until you select an item in the list box that provides that option. Figure 6-15.
Array Configuration Utilities 6-23 ■ Help - Use to access online help. Controller Selection Box The Controller Selection box is located in the top left corner of the main configuration screen. When you select this, a drop-down box lists all the controllers that are installed in the present system. You can select which controller you would like to view or configure. The highlighted controller is shown in detail in the View Configuration list box. Figure 6-16.
6-24 Compaq Smart Array 431 Controller User Guide Figure 6-17. View Configuration list box Figure 6-17 shows an example of a physical view of a Smart Array 431 Controller in slot 6. Listed below the controller are seven 9.1-GB drives. This controller has one drive array, named Array A, along with a number of drives within each array. Array A has an online spare.
Array Configuration Utilities 6-25 Figure 6-18. More Information and Drive View buttons Controller Buttons The top right corner of the screen contains the Controller box, which becomes active after you select a controller in the Controller Select box. Figure 6-19. Controller box Click the Settings button to display the Controller Settings screen (see the section titled “Controller Settings Screen” later in this chapter).
6-26 Compaq Smart Array 431 Controller User Guide Logical Drive Buttons This box is located on the right side under the Array box. It becomes active after you select a logical drive in the Configuration View list box. Figure 6-21. Logical Drive buttons Controller Settings Screen In this screen, select the operating system and set the Rebuild Priority. Rebuild Priority selections have no impact on an “idle” system but will effect performance on a “busy” system.
Array Configuration Utilities 6-27 Figure 6-22. Controller Settings screen Create Array Screen In this screen, all available drives attached to the selected controller are listed on the left. Drives assigned to the current array appear on the right. A port number and SCSI ID identify each drive. The drives are always displayed under Port 1. To create an array, select the drives to be part of the array, then click the Assign Drive to Array button. You can also select a drive and drag it to the array.
6-28 Compaq Smart Array 431 Controller User Guide Figure 6-23. Create Array screen Create Logical Drive Screen In this screen, you can select the fault-tolerance method, set the logical drive size, and set the stripe size.
Array Configuration Utilities 6-29 Figure 6-24. Create Logical Drive screen The Logical Drive Size area shows a scale marked with the amount of drive capacity available for a logical drive. The utility does not allow you to create a logical drive larger than the maximum supported by the operating system. The purple (left) band on the scale indicates the fraction of the total that is available for data.
6-30 Compaq Smart Array 431 Controller User Guide Stripe Size Stripe size refers to the amount of data stored on each physical drive in one stripe of a logical drive. Each RAID level has a default value (Table 6-1) plus a range of supported sizes. The default values were determined to provide optimum performance for that RAID level in many applications. However, your application may benefit from setting the stripe size to a different value.
Array Configuration Utilities 6-31 Auto-configuration If no logical drives are configured, a CPQONLIN auto-configuration wizard (Figure 6-25) appears and prompts you to select fault tolerance information. CPQONLIN then configures arrays optimally for the selected fault tolerance. Figure 6-25. Auto-configuration wizard with RAID 1 fault tolerance selected Custom Configuration Custom configuration allows you to create arrays and to assign fault tolerance one array at a time.
6-32 Compaq Smart Array 431 Controller User Guide Figure 6-26. Main Configuration View screen Use online help for instructions to complete configurations. The following sections discuss CPQONLIN functions. Drive Rebuild, Expand Priority, and Accelerator Ratio To set the drive rebuild priority, expand priority for a controller, highlight the controller at the Main Configuration View screen and select the Controller Settings option listed below Controller Options.
Array Configuration Utilities 6-33 Drive Rebuild Drive rebuild occurs after a physical drive fails and is replaced. Only logical drives configured for fault tolerance (RAID 1 or RAID 5) on the array with the failed physical drive will rebuild. Priority Settings To set the drive rebuild priority, highlight the Smart Array 431 Controller and select the Controller Settings. If you chose low priority for drive rebuild, drive rebuilding takes place when there is not I/O to the drive.
6-34 Compaq Smart Array 431 Controller User Guide Online RAID and Stripe Migration Using CPQONLIN, you can modify both the RAID level and Stripe Size of an existing logical drive while online. To migrate a drive, select the drive setting option under the logical drive menu for the drive you wish to modify. Select the new RAID level and/or stripe size from the choices presented to you. If the new settings are valid, the migration will begin when you save your changes.
Array Configuration Utilities 6-35 If you do not replace the failed drive, the only option using the Array Configuration Utility is to delete logical drives. Do NOT delete logical drives that contain valid data. Doing so results in lost data. NOTE: A failed status can occur on drives protected by fault tolerance if two or more physical drives fail concurrently. Some status indicators are available without pressing F3.
6-36 Compaq Smart Array 431 Controller User Guide Optimizing Array Controller Performance To improve system performance, keep these tips in mind before creating NetWare volumes or partitions: If you selected a fault tolerance option, such as mirroring or distributed data guarding, when using the Compaq System Configuration Utility, do not select mirroring while using INSTALL.NLM. The fault tolerance capabilities of the Smart Array 431 provide performance improvements and automatic data recovery features.
Chapter 7 Installing the Operating System Drivers This chapter outlines the driver installation steps to set up the Smart Array 431 Controller in an existing server with the following operating systems: ■ Novell NetWare 3.20, 4.2, 5.0 ■ Microsoft Windows NT 4.0 ■ SCO OpenServer 5 ■ UnixWare 2.X, 7.
7-2 Compaq Smart Array 431 Controller User Guide Materials Needed You need these materials only if you did not use SmartStart to install your operating system: ■ Compaq SmartStart and Support Software CD (supplied in the Smart Array 431 Controller Option Kit) ■ Seven blank diskettes ■ Any server or workstation with a bootable CD-ROM drive Novell NetWare Use the instructions in this section to install the driver for the new Smart Array 431 Controller or to upgrade the driver in an existing NetWare ser
Installing the Operating System Drivers 7-3 Additional Information Readme files containing the latest information about using Compaq options in a NetWare environment, including the driver installation procedure, are included on the Novell SSD diskettes. Locate and read this procedure. If the procedure differs from that shown here, use the one on the SSD diskette. To read the Readme files, you need a server with a DOS partition or a PC running DOS or Windows: 1.
7-4 Compaq Smart Array 431 Controller User Guide 4. Refer to your NetWare installation documentation for information about installing and mounting volumes associated with your new disk subsystem. Driver installation is complete. Compaq Online Array Configuration Utility for NetWare (CPQONLIN) The Compaq Online Array Configuration Utility for NetWare, CPQONLIN.NLM v2.33 or later, is an NLM that allows you to configure your drive arrays without shutting down your NetWare server. The CPQONLIN.
Installing the Operating System Drivers 7-5 Microsoft Windows NT 4.0 This section includes instructions for installing the initial driver for a new Smart Array 431 installation or for upgrading the driver in an existing Windows NT server/Smart Array 431 system. If you used SmartStart to install Windows NT and drivers on a new server, you do not need to make the Support Server Diskette (SSD) utility diskettes.
7-6 Compaq Smart Array 431 Controller User Guide Additional Information An NTREADME.HLP file on the Compaq SSD for Windows NT diskettes, contains the latest information about Windows NT, including the driver installation procedure. Review this information and, where different from the instructions shown here, use the instructions provided in NTREADME.HLP file. To access the NTREADME.HLP file, you need a server running Windows NT or a PC running Windows. Perform the following steps: 1.
Installing the Operating System Drivers 7-7 Installation Procedures You can install device drivers on a Windows NT server using: ■ the Compaq SSD for Windows NT Setup program installation or ■ the standard Windows NT device driver installation If you will be installing the driver after installing Windows NT, use the Compaq SSD for Windows NT installation method; however, if you need to install the driver during initial Windows NT installation, you must use the standard Windows NT device driver installa
7-8 Compaq Smart Array 431 Controller User Guide Updating the Smart Array 431 Driver Updating the Smart Array 431 driver is a two-step process: remove the driver, then re-add the driver. With the new Compaq SSD for Windows NT Setup program, you can skip the remove/add steps and update the driver by following these steps: 1. Start Windows NT and log in to an account with administrative privileges. 2. Insert the Compaq SSD diskette (Diskette #1) into the diskette drive. 3.
Installing the Operating System Drivers 7-9 4. Enter the following: A:\setup 5. Select Custom. 6. Select the Compaq Smart Array 322DC/42XX Controllers component. If you have previously installed this driver on your system, Setup indicates whether the driver can be updated - click Update to do so. If you have not installed the driver, click Install to do so. Insert the correct diskettes as prompted during the installation. 7. You can install other components through Setup, or click Close if you are done.
7-10 Compaq Smart Array 431 Controller User Guide SCO OpenServer 5 This section does not contain the information for setting up the Smart Array 431 Controller in a server running SCO OpenServer 5, but outlines the procedure to get the required information. If your system has an older SCO operating system or if you are setting up a new system with SCO OpenServer 5, you are encouraged to use SmartStart to upgrade your operating system.
Installing the Operating System Drivers 7-11 Accessing the Information Driver installation procedures for SCO OpenServer 5 from Compaq and SCO OpenServer 5 (non-Compaq) are different. Choose the correct procedure below. Servers Running Compaq SCO OpenServer 5 To access the driver installation information for systems running SCO OpenServer 5 from Compaq: 1. Place the diskette labeled SCO Installation Notes for Compaq Servers in the diskette drive of a server or PC capable of reading a DOS text file. 2.
7-12 Compaq Smart Array 431 Controller User Guide SCO UnixWare 2.1 or Later Getting the Driver and Installation Information The instructions in this section can be used to retrieve the latest driver and information necessary to install the initial driver for a new Smart Array 431 Controller installation or to upgrade the driver in an existing UnixWare server/Smart Array 431 Controller system.
Installing the Operating System Drivers 7-13 Accessing the Information To access the driver installation information: 1. Place the diskette labeled Documentation Diskette in the diskette drive of a server or PC. If you wish to print the information file this system must of course be connected to a printer. 2. Reboot the system. 3. Select the file named README.HBA to view or print. 4. Follow the instructions in this file to install the Smart Array 431 Controller driver in an existing UnixWare server.
7-14 Compaq Smart Array 431 Controller User Guide Additional Information Readme files containing the latest information about OS/2, including the driver installation procedure, are included on the OS/2 SSD diskette. Locate and read this procedure. If the procedure differs from that shown here, use the one on the SSD diskette. To read the Readme files, you need a server with a DOS partition or a PC running DOS or Windows: 1. Place the OS/2 SSD diskette in the floppy drive. 2.
Installing the Operating System Drivers 7-15 3. If you do not want to boot from a drive on this controller, for instance if you wanted to boot from a drive attached to the integrated SCSI controller, you must manually change the CONFIG.SYS file before you reboot the server. Edit the CONFIG.SYS file to reorder the BASEDEV=CPQARRAY.ADD statement so that it appears after the BASEDEV statement. 4. If it is present, remove the BASEDEV=IBM1S506.ADD statement from the CONFIG.SYS file.
7-16 Compaq Smart Array 431 Controller User Guide 2. If a Compaq IAES Controller is the only other controller installed in the system, since it cannot be primary, the system must boot from the Compaq Smart Array 431 Controller (controller order = First). Partitioning The following are limitations for OS/2 on any computer system: ■ Any FAT partition cannot be larger than 2 GB (2048-MB) in size. ■ It is recommended that you do not exceed 8 GB for an HPFS boot partition.
Installing the Operating System Drivers 7-17 Remove all IDE or ESDI (ST-506) disk drivers from CONFIG.SYS if you are using a Smart Array 431 Controller drive. Make sure that the “BASEDEV=IBM1S506.ADD” line is deleted. Command Line Switches You may want to modify the standard behavior of the Compaq ADD driver. Several command line switches are available for this purpose. The syntax of the command line switches is: 1.
7-18 Compaq Smart Array 431 Controller User Guide Example: BASEDEV=CPQARRAY.ADD /V 3. /A:[adapter index] [unit parameters] This command line switch is a standard command line switch that causes the driver to modify its behavior towards adapters. Where [adapter index] = The adapter index is a number used to identify a controller. The index is based on ‘0’ for the lowest controller order number associated with the adapter controlled by this ADD.
Installing the Operating System Drivers 7-19 Limitations ■ The driver MUST be loaded by a BASEDEV= statement in the CONFIG.SYS file. This statement is automatically inserted by the ADDARRAY.CMD installation procedure. ■ When using the /V, verbose option, command line switch for this driver in a system using OS/2 for SMP, the text is not reliably displayed. Proceed to the last section in this chapter, “Updating the Compaq Insight Management Agents.
Appendix A Regulatory Compliance Notices Federal Communications Commission Notice Part 15 of the Federal Communications Commission (FCC) Rules and Regulations has established Radio Frequency (RF) emission limits to provide an interference-free radio frequency spectrum. Many electronic devices, including computers, generate RF energy incidental to their intended function and are, therefore, covered by these rules.
A-2 Compaq Smart Array 431 Controller User Guide 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.
Regulatory Compliance Notices A-3 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. For questions regarding this declaration, contact: Compaq Computer Corporation P. O.
A-4 Compaq Smart Array 431 Controller User Guide Class B Equipment This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. European Union Notice Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and the Low Voltage Directive (73/23/EEC) issued by the Commission of the European Community.
Appendix B Electrostatic Discharge A discharge of static electricity from a finger or other conductor may damage printed circuit boards or other static-sensitive devices. This type of damage may reduce the life expectancy of the device. Preventing Electrostatic Damage To prevent electrostatic damage, observe the following precautions: ■ Avoid hand contact by transporting and storing parts in static-safe containers.
B-2 Compaq Smart Array 431 Controller User Guide Grounding Methods There are several methods for grounding. Use one or more of the following measures when handling or installing electrostatic-sensitive parts: ■ Use a wrist strap connected by a ground cord to a grounded workstation or the computer chassis. Wrist straps are flexible straps with a minimum of 1 megohm +/- 10 percent resistance in the ground cords. ■ Use heel straps, toe straps, or bootstraps at standing workstations.
Appendix C Specifications This appendix provides physical, operating, and performance specifications for the Smart Array 431 Controller.
C-2 Compaq Smart Array 431 Controller User Guide Table C-1 Smart Array 431 Controller Specifications continued Table C-2 Smart Array 431 Controller Specifications PCI Bus Transfer Rate (maximum) SCSI Bus Termination Internal Wide SCSI Port Connector External Wide SCSI Port Connector 264 MB/s Required for the drive end of the SCSI drive (included with option kit) 68-pin Wide SCSI VHDCI Connector
Appendix D Understanding Drive Arrays This chapter provides explanations of drive array concepts, data protection methods including fault tolerance options, and data reliability features of the Smart Array 431 Controller. Before you configure your Smart Array 431 Controller; review the following general information so that you will be familiar with the terms and concepts required for configuration.
D-2 Compaq Smart Array 431 Controller User Guide Physical Drive 1 Physical Drive 2 Physical Drive 3 Logical Drive 1 Logical Drive 2 Drive Array Daz-9-12.EPS Figure D-1. Drive Array with two logical drives A drive array may also consist of a single logical drive as illustrated in Figure D-2. Physical Drive 1 Physical Drive 2 Physical Drive 3 Logical Drive 1 Drive Array Daz-9-18.EPS Figure D-2.
Understanding Drive Arrays D-3 Drive 1 Drive 2 Physical Drives Drive 3 Drive 4 Drive 5 Drive 6 Logical Drive 1 Logical Drive 2 Drive Array Daz-9-16.EPS Figure D-3. Drive Array with six physical drives and two logical drives The same physical drives may also be arranged into separate arrays as illustrated in Figure D-4. The same controller can handle both arrays. Physical Drives Drive 1 Drive 2 Drive Array 1 Drive 3 Logical Drive 1 Drive 4 Drive 5 Drive Array 2 Daz-9-17.EPS Figure D-4.
D-4 Compaq Smart Array 431 Controller User Guide Drive Arrays Drive arrays on the Smart Array 431 Controller have several important attributes: ■ A single array cannot span more than one Smart Array 431 Controller. ■ A single Smart Array 431 Controller can control multiple arrays. ■ Arrays must have at least one and may have up to 15 physical drives. ■ Arrays will consist of at least one and may have up to 32 logical drives (maximum 32 logical drives per controller).
Understanding Drive Arrays D-5 Drive Array Benefits Using drive arrays with the Smart Array 431 Controller has several important benefits: ■ Data Protection ■ Performance Enhancement ■ Capacity Changes ■ Drive Movement ■ Data Reliability Data Protection The Smart Array 431 Controller provides several options to produce data redundancy for a more reliable system including distributing data, fault tolerance methods, assigning online spares, and rebuilding data automatically to online spare drives.
D-6 Compaq Smart Array 431 Controller User Guide Table D-1 RAID Level Characteristics Distributed Data Guarding (RAID 5) Mirroring (RAID 1) Usable Disk Space* 67% to 93 % 50% 100% 50% Disk Space Formula (n = no.
Understanding Drive Arrays D-7 Distributed Data Guarding (RAID 5) Distributed data guarding also called RAID 5, stores parity data across all the drives in the array. Spreading the parity across all the drives allows more simultaneous read. If a drive fails, the controller uses the parity data and the data on the remaining drives to reconstruct data from the failed drive. This allows the system to continue operating with slightly reduced performance until you replace the failed drive.
D-8 Compaq Smart Array 431 Controller User Guide Drive Mirroring (RAID 1) Drive mirroring, also called RAID 1, is the highest performance and highest fault tolerance RAID method. RAID 1 is the only option offering fault tolerance protection if only two drives are installed or selected for an array. Drive mirroring creates fault tolerance by storing two sets of duplicate data on a pair of disk drives.
Understanding Drive Arrays D-9 No Fault tolerance (RAID 0) RAID 0 does not provide fault tolerance. This level of RAID stripes data across all the drives of the array, but it does not incorporate a method to create redundant data. Therefore, if you choose this RAID option for any of your logical drives, you will experience complete data loss for that logical drive if one physical drive fails.
D-10 Compaq Smart Array 431 Controller User Guide Performance Enhancement Drive arrays allow data access performance to be dramatically enhanced over non-arrayed drives. In addition the Smart Array 431 Controller has several other performance enhancement features that are discussed here. Distributing Data and Data Striping Distributing data makes it possible to access data concurrently from multiple drives in an array. This yields I/O rates many times faster than non-arrayed drives.
Understanding Drive Arrays D-11 Concurrent I/O Request Servicing The Smart Array 431 Controller has the capability to service hundreds of I/O requests at a time. For example, if you request data that resides on the first drive and another user requests data that resides on the second drive, the controller can deliver both pieces of information concurrently. Figure D-8 illustrates concurrent request servicing. User 1 Request User 2 Request User 3 Request User 4 Request Figure D-8.
D-12 Compaq Smart Array 431 Controller User Guide Bus Master Data Transfers The Smart Array 431 Controller is a bus master device that takes control of the PCI bus during high-speed transfers. This allows the system processor to handle application processing or other types of tasks. Data transfer occurs at rates of up to 264 MB/s on the PCI bus.
Understanding Drive Arrays D-13 Original Physical Drives New Physical Drives Figure D-9. Adding more physical drives When initiated by the Array Configuration Utility, the Smart Array 431 automatically redistributes the data in the original logical drive to a logical drive that spans all of the physical drives in the array, including the added drives. The room left over is used to increase the size of a logical drive or create additional logical drives, also spanning all physical drives.
D-14 Compaq Smart Array 431 Controller User Guide Example: Assume you have a total of 4 drives and you want to expand this to 6 drives. With Array Configuration Utility running, simply install two matching drives in the empty drive bays. At this point your array will resemble Figure D-10, with the original data (original logical drive) represented by the gray shaded drives and the new drives unshaded.
Understanding Drive Arrays D-15 Online Capacity Expansion or Extension In certain cases, the Smart Array 431 and the Array Configuration Utility also support making storage capacity changes online, without downing the server or storage system. These features are available if both the following are true: ■ Windows NT or NetWare operating system And ■ Pluggable drives NOTE: Online capacity extension under Windows NT only.
D-16 Compaq Smart Array 431 Controller User Guide Data Reliability The Smart Array 431 Controller and the network operating system offer several other fault management and data reliability features.
Understanding Drive Arrays D-17 Drive Parameter Tracking Drive parameter-tracking monitors more than 15 drive operational parameters and functional tests. This includes parameters such as read, write, and seek errors, spin-up time, cable problems, and functional tests such as track-to-track seek time, one-third stroke, and full stroke seek time. Drive parameter tracking allows the Smart Array 431 Controller to detect drive problems and predict drive failure before they actually occur.
D-18 Compaq Smart Array 431 Controller User Guide Automatic Data Recovery After you replace a failed drive, automatic data recovery reconstructs the data and places it on the replaced drive. This allows a rapid recovery to full operating performance without interrupting normal system operations. In general, the time required for a rebuild is approximately 15 minutes per GB.
Understanding Drive Arrays D-19 Drive Indicators OK to remove drive if not part of fault-tolerant configuration OK to remove failed drive DO NOT remove drive DO NOT remove drive DO NOT remove drive DO NOT remove drive OFF On Drive Access Online Drive Failure Figure D-11.
D-20 Compaq Smart Array 431 Controller User Guide Drive Indicators OK to remove drive if not part of fault-tolerant configuration OK to remove failed drive DO NOT remove drive DO NOT remove drive DO NOT remove drive DO NOT remove drive OFF ON Online Drive Access Drive Failure Figure D-12.
Understanding Drive Arrays D-21 Controller Duplexing IMPORTANT: Compaq strongly recommends using hardware-based fault tolerance (OS independent) instead of controller duplexing, which is OS dependent. Hardware-based fault tolerance provides a much more robust and controlled environment for fault tolerance protection. Some operating systems support controller duplexing, a fault tolerance feature that requires two Smart Array 431 Controllers.
Appendix E Upgrading from a Compaq Single Channel Array Controller Users of a Compaq single channel array controller should consider upgrading to the new Smart Array 431 Controller. This appendix provides an upgrade procedure for moving arrayed drives to the Smart Array 431 Controller. All user data and configuration information will be retained after the upgrade process. Array configuration information is transferred automatically during the upgrade process. However, this is a one-way process.
E-2 Compaq Smart Array 431 Controller User Guide 3. Upgrade your System ROMs to the most current version using the Compaq System ROMPaq. The System ROM must be upgraded before installing the Smart Array 431 Controller. Your Smart Array 431 option kit may include a diskette containing System. If so, use the diskette to upgrade the system ROMs. Otherwise, System ROMPaq is distributed on the Compaq SmartStart and Support Software CD included in the Smart Array 431 option kit.
Appendix F Recovering from Drive Failure The purpose of fault tolerant configurations on the Smart Array 431 Controller is to protect against data loss due to drive failure. Although the Smart Array 431 Controller firmware is designed to protect against normal drive failure, it is imperative that the system operator perform the correct actions to recover from a drive failure without inadvertently inducing any additional drive failures.
F-2 Compaq Smart Array 431 Controller User Guide ■ Compaq Insight Manager can be used to detect failed drives remotely across a network. Problems such as reduced system performance or disk errors reported by the operating system do not necessarily imply that a drive has or has not been failed. If drive failures or repeated errors are suspected, Compaq recommends that Array Diagnostics Utility (ADU) be run on the system.
Recovering from Drive Failure In any RAID 1 logical drive on the Smart Array 431 Controller having N physical drives in the array (not including spare drives), the first N/2 physical drives are normally mirrored in consecutive order to the second N/2 physical drives. When determining the order, number each drive in the array by increasing IDs on the SCSI bus. A RAID 5 (Distributed Data Guarding) Logical Drive RAID 5 Logical Drives ■ can sustain a single drive failure.
F-4 Compaq Smart Array 431 Controller User Guide Replacing a Failed Drive Failed drives in hot-pluggable trays can be removed and replaced while host system and storage system powers are both ON. Of course hot-pluggable drives can also be replaced when the power is OFF. Remember, however, to NEVER TURN OFF an external storage system while the host system power is on. This would result in the failure of all drives in the storage system, which would likely compromise your fault tolerance.
Recovering from Drive Failure Replacement drives are not considered to be “online” until Automatic Data Recovery is completed, at which time the online LED stops blinking and is on “solid.” Any drives that are not yet “online” are treated as if they are “failed” when trying to determine whether fault tolerance will be compromised.
F-6 Compaq Smart Array 431 Controller User Guide Fault tolerance may be compromised due to non-drive problems such as a faulty cable, faulty storage system power supply, or a user accidentally turning off an external storage system while the host system power was on. In such cases, obviously the physical drives do not need to be replaced. However, data loss can still occur in this situation, especially if the system was busy at the time the problem developed.
Appendix G POST Error Messages The Smart Array 431 Controller produces 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 and corrective actions are listed below. Table F-1 POST Error Messages 1720 Meaning Recommended Action Slot x Drive Array – S.M.A.R.T. Hard Drive Detects Imminent Failure: SCSI Port x: SCSI ID x The indicated drive has reported a S.M.A.R.T.
G-2 Compaq Smart Array 431 Controller User Guide Table F-1 POST Error Messages 1726 continued Meaning Recommended Action Slot x Drive Array - Array Accelerator Memory Size Change Detected - Array Accelerator configuration has automatically been updated This message appears if the controller is replaced with a model that has a different amount of cache memory.
POST Error Messages Table F-1 POST Error Messages 1776 continued Meaning Recommended Action Slot x Drive Array - SCSI Bus Termination Error – Internal and external drives cannot both be attached to the same SCSI port. The internal and external connectors of the specified SCSI port(s) are both attached to drives. The SCSI bus is not properly terminated when internal and external drives are attached concurrently to the same SCSI bus. The indicated SCSI bus is disabled until this problem is resolved.
G-4 Compaq Smart Array 431 Controller User Guide Table F-1 POST Error Messages continued Meaning Recommended Action 1783 Slot x Drive Array Controller Failure. If this message appears immediately following a ROM installation, the ROM is defective or not installed properly. Check that the controller is firmly inserted in its slot. Check for improper cabling or SCSI ID conflicts. Try upgrading the System ROMs. Otherwise, replace the Smart Array 431 Controller. 1784 Slot x Drive Array Drive Failure.
POST Error Messages Table F-1 POST Error Messages 1786 continued Meaning Recommended Action Slot 1 Drive Array Recovery Needed. The following SCSI drive(s) need Automatic Data Recovery: SCSI Port 1: SCSI ID 0 The message normally appears when a drive was replaced in a fault-tolerant configuration when system power was OFF. In this case, press F1 to start the automatic data recovery process. Select F1 to continue with recovery of data to drive. Select F2 to continue without recovery of data to drive.
G-6 Compaq Smart Array 431 Controller User Guide Table F-1 POST Error Messages 1789 continued Meaning Recommended Action Slot x Drive Array SCSI Drive(s) Not Responding. Check cables or replace the following SCSI drives: SCSI Port (y): SCSI ID (x) This message indicates that previously operating drives are missing or inoperative following a cold or warm reset. Turn off system and check cable connections. If cables are connected, replace the drive.
Appendix H Questions and Answers This Appendix contains several common questions about the Smart Array 431 Controller. Along with the answers to the questions, you will see the location in this guide where you can find more information. Q. How many Smart Array 431 Controllers can I install in my system, and how many internal and external drives? A.
H-2 Compaq Smart Array 431 Controller User Guide 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 431 Controller, all termination requirements are met by the controller and the SCSI signal cable. Therefore, the individual drives should have termination removed. Q. I have several hard drives in my server and in the Compaq ProLiant Storage System/U or StorageWorks Enclosure Models 4214R and 4214T.
Questions and Answers Q. I want to connect a Compaq ProLiant Storage System/U or StorageWorks Enclosure Models 4214R and 4214T to my server. Can I also connect the internal hard drives in my server to the Smart Array 431 Controller? A. No. If you connect one ProLiant Storage System or StorageWorks Enclosure Models 4214R/4214T to your server you cannot connect any internal hard drives in your server to your Smart Array 431 Controller because the SCSI port will be used externally.
H-4 Compaq Smart Array 431 Controller User Guide Q. Why do the drive activity lights light up on some drives when my system is idle? A. The Smart Array 431 Controller performs several different background activities on the drives when the controller is otherwise idle. For example, the Auto Reliability Monitoring task scans fault tolerant volumes for defects and verifies the consistency of parity data.
Index A Accelerator Ratio, description 6-26 ACU See Array Configuration Utility ADD driver, command line switches 7-18 adding spare drives 6-33 array expanding capacity, add drives 2-5 expanding capacity, back up data 2-5 expanding capacity, configure array 2-5 expanding capacity, restore data 2-5 Array buttons, function 6-25 Array Configuration Utility accessing online 6-6 benefits 6-5 create logical drive screen 6-28 definition 6-5 description 1-3, 1-6, 6-2 drive capacity, recognizing D-15 fault toleranc
2 Compaq Smart Array 431 Controller User Guide B boot error, after installing new controller 3-3 bus master data transfers, description D-12 buttons Array 6-25 Controller 6-25 Drive View 6-24 Logical Drive 6-26 More Information 6-24 Settings 6-25 C cables external 4-6 external storage system H-2 FCC compliance statement A-3 cabling external 4-3, 4-5 internal 4-4 internal drives 4-4 obtaining replacements 4-8 option kit numbers 4-8 required 4-5 capacity expansion configuration wizard 6-7 considerations D-1
Index 3 wizard auto 6-31 CPQONLIN 6-31 physical drive not in use 6-14 wizards 6-7 configuring spare drives 6-33 the controller 6-4 the drive array 2-6 connectors internal and external, Smart Array 431 Controller 1-1 SCSI, identified 1-3 Controller Products Documentation (CPD) CD description 2-2 identified 2-2 controllers configuration wizard 6-7 configuring 6-4 drive array associated with 6-23 duplexing D-21 maximum storage capacity supported 2-5 reordering 5-4 selecting 6-23 slot used in 6-23 Smart Array
4 Compaq Smart Array 431 Controller User Guide NetWare Online Array Configuration Utility 6-30 optimizing array controller performance 6-36 RAID level modification 6-34 stripe size migration 6-34 CPQONLIN.
Index 5 rebuilding F-2 regenerating F-2 space efficiency, obtaining maximum D-4 spanning across controllers D-4 two drive arrays with six physical drives, illustrated D-3 understanding D-1 viewing drive assignment 6-27 with one logical drive, illustrated D-2 with six physical drives and two logical drives, illustrated D-3 with two logical drives, illustrated D-2 Drive Arrays capacity expansion, example 6-15 capacity extension 6-17 expanding capacity 6-15 drive capacity, recognizing additional D-15 drive fa
6 Compaq Smart Array 431 Controller User Guide moving arrays 1-4 offline 2-6 procedure 2-6 requirements 2-6 non-Compaq pre-failure warranty H-3 using H-3 non-hot-pluggable SCSI IDs, assigning 2-4 online spare D-9 size, setting 6-29 space efficiency, obtaining maximum D-4 spare assigning 6-27 description F-3 terminating 2-4, H-2 termination 4-3 type supported 2-4 uniting into logical drives 1-3 viewing array assignment 6-27 duplex drive cage installation 4-4 duplexing controllers D-21 dynamic sector repairi
Index 7 methods supported by the Smart Array 431 Controller 1-4 FCC compliance statement cables A-3 device modifications A-3 FCC ID A-1 FCC logo A-1 FCC Rules Class A devices A-2 Class B devices A-2 Declaration of Conformity A-3 FCC Rules, contact A-3 Federal Communications Commission Class A devices A-1 Class B devices A-1 FCC ID A-1 FCC logo A-1 G getting help xi grounding methods B-2 procedures B-1 H hard drives failed, rebuild time F-5 logical, reenabling F-6 multiple failure F-5 pre-failure notifica
8 Compaq Smart Array 431 Controller User Guide hot-plug drives replacement conditions D-19, D-20 option kit contents 2-2 SCSI connectors, identified 1-3 Smart Array 431 Controller components 1-3 option kit contents 2-2 two drive arrays with six physical drives D-3 installation overview, Smart Array 431 Controller 2-3 installing hot-plug drives 4-4 non-hot-plug drives 4-5 installing a Compaq Smart Array 431 Controller Compaq Servers 4-2 illustrated 4-3 replacing existing controllers 4-2 server preparation 4
Index 9 migration online RAID level 1-5, 6-20 online stripe size 1-5, 6-20 mirroring, drive failure F-2 modifying system, FCC compliance statement A-3 multiple logical drives 1-1 N NetWare add spare drives 6-33 Array Configuration Utility for, description 7-4 configure spare drives 6-33 controller performance optimizing 7-4 custom configuration 6-31 custom configure an array 6-31 driver location 7-2 expand an array 6-33 failed drives mode 6-34 interim recovery mode 6-34 optimizing array controller perform
10 Compaq Smart Array 431 Controller User Guide minimal configuration requirements 6-2 RAID knowledge level 6-2 restrictions 6-2 starting 6-3 option ROM, updating 3-1 Options Rom Configuration for Arrays description 1-6 Options ROMPaq description 3-1 running 3-5 when to use 3-4 ORCA See Option Rom Configuration for Arrays P parts handling B-1 transporting B-1 PCI bus, description 1-2 performance enhancement features elevator trend sorting D-11 elevator trend sorting, example D-11 optimized request managem
Index 11 ROM flashing 3-1 updating 3-1 upgrading H-3 ROMPaq diskettes, creating 3-2 options description 3-1 running 3-5 when to use 3-4 system description 3-1 running 3-3 using 3-1, H-3 utilities creating diskettes 3-2 running 3-2 S SCO OpenServer 5 accessing 7-11 creating diskettes 7-10 driver 7-10 installing 7-10 required information 7-10 SCO UnixWare 2.
12 Compaq Smart Array 431 Controller User Guide setting accelerator ratio 6-32 drive rebuild 6-32 expand priority 6-32 Settings button, function 6-25 single channel array controller upgrading E-1 upgrading from ACU E-2 backup drives E-1 board placement E-2 Compaq System Configuration Utility E-2 normal shutdow E-2 OS device driver E-1 reconnect all cables E-2 System ROMs E-2 Single Ended defined 1-5 Smart Array 431 Controller auto reliability monitoring D-16 automatic data recovery D-18 benefits D-5 capabi
Index 13 software-based drive mirroring D-21 specifications C-1 supporting multiple arrays D-4 upgrading from single channel array controller E-1 Smart Array 431 driver installation during Windows installation 7-7 updating 7-8 SmartStart generating NPFC diskettes 6-6 SmartStart and Support Software CD Array Configuration Utility running 6-6 creating diskettes from 3-2 description of contents 2-2 identified 2-2 running System Configuration Utility from 5-2 spare drive add or configure 6-33 assigning 6-27 de
14 Compaq Smart Array 431 Controller User Guide OS device driver, most current version E-1 reconnect all cables E-2 System ROMs, most current version E-2 utilities Array Configuration accessing online 6-6 benefits 6-5 definition 6-5 description 1-3 NetWare, description 7-4 NetWare, location 6-6 pre-installation steps 6-5 RAID levels supported 1-4 running from SmartStart 6-6 screens, described 6-22 starting 6-6 wizards 6-7 Compaq System Configuration capabilities 5-1 creating diskette version 5-2 creating d
