StorageWorks RAID Array 200 Subsystems Controller Installation and Standalone Configuration Utility User's Guide Order Number: EK-SWRA2-IG.
Third Printing, April 1995 The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that might appear in this document. The software, if any, described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license.
Contents Revision Record.................................................................................................................xiii About This Guide .............................................................................................................. xv 1 Overview of RAID and the RAID Array 200 1.1 What is RAID? ........................................................................................................1-1 1.1.1 Implementing RAID through Hardware, or through Software ........
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 2 Preparing to Install 2.1 Installation Overview ..............................................................................................2-1 2.2 Preparing to Install ..................................................................................................2-3 2.2.1 Verifying User Supplied Hardware and Software (System Requirements)..........2-4 2.2.2 Verifying the Controller Kit and Storage Enclosures.
Contents 5 3-Channel RAID Controller Installation 5.1 Installing the 3-Channel RAID Controller................................................................5-2 5.1.1 EISA Controller Internal Cabling.......................................................................5-4 5.1.2 PCI Controller Internal Cabling .........................................................................5-6 5.2 Cabling.............................................................................................................
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 6 Configuring Your Array (Cont.) 6.6 Configuring Interactively.......................................................................................6-27 6.6.1 Creating a Drive Group....................................................................................6-28 6.6.1.1 Defining a Drive Group ...................................................................................6-30 6.6.1.
Contents 7 Maintaining the Array with the Standalone Configuration Utility (Cont.) 7.5 Working with Drives .............................................................................................7-48 7.5.1 Formatting a Drive ..........................................................................................7-49 7.5.2 Failing a Drive.................................................................................................7-50 7.5.3 Rebuilding a Drive .....................................
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 9 Upgrading (Cont.) 9.4 Setting Controller Parameters ................................................................................9-25 9.4.1 Invoking the Standalone Configuration Utility.................................................9-25 9.4.1.1 Invoking the Standalone Utility on Intel Systems.............................................9-26 9.4.1.2 Invoking the Standalone Utility on AXP Systems ................
Contents Figures (Cont.) 3-11 3-12 3-13 4-1 4-2 4-3 4-4 4-5 4-6 4-7 4-8 4-9 4-10 4-11 4-12 5-1 5-2 5-3 5-4 5-5 5-6 5-7 5-8 5-9 5-10 5-11 5-12 5-13 5-14 5-15 5-16 6-1 6-2 6-3 6-4 6-5 6-6 The ECU Main Menu ............................................................................................3-13 The Save and Exit Screen ......................................................................................3-14 The Reboot After Changing the ECU Screen ....................................................
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figures (Cont.) 6-7 6-8 6-9 6-10 6-11 6-12 6-13 6-14 6-15 6-16 6-17 6-18 6-19 6-20 6-21 6-22 6-23 6-24 6-25 6-26 6-27 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 7-10 7-11 7-12 7-13 7-14 7-15 7-16 x The SCSI Transfer Parameters for the Specified Channel ......................................6-10 The Start Up Parameters Menu ..............................................................................
Contents Figures (Cont.) 7-17 7-18 7-19 7-20 7-21 7-22 7-23 7-24 7-25 7-26 7-27 7-28 7-29 7-30 7-31 7-32 7-33 7-34 7-35 8-1 8-2 8-3 8-4 9-1 9-2 9-3 9-4 9-5 9-6 9-7 9-8 9-9 9-10 9-11 9-12 9-13 9-14 Displaying New Logical RAID Drive ....................................................................7-31 The Define Spare Drive Screen..............................................................................7-34 Configuration Confirmation Screen ............................................................
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figures (Cont.) 9-15 9-16 9-17 9-18 9-19 9-20 9-21 9-22 9-23 A-1 A-2 A-3 A-4 A-5 A-6 The Save and Exit Screen ......................................................................................9-24 The Reboot After Changing the ECU Screen .........................................................9-25 The Main Menu of the Standalone Utility ..............................................................
Revision Record This Revision Record provides a concise publication history of this manual. It lists the manual revision levels, release dates, and reasons for the revisions. It also describes how the changes to affected pages are marked in the manual. The following revision history lists all revisions of this publication and their effective dates. The publication part number is included in the Revision Level column, with the last entry denoting the latest revision.
About This Guide This section identifies the audience of this guide and describes the contents (chapter by chapter) and structure. In addition, this section includes a list of associated documents and the conventions used in this guide.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Organization This guide contains the following: Chapter 1: Overview of RAID and the RAID Array 200 Overview of RAID and the RAID Array 200 discusses the definition of RAID, the different levels, key concepts, and also describes StorageWorks RAID Array 200 Subsystems.
About This Guide Chapter 6: Configuring Your Array Configuring Your Array describes how to determine the version of your controller firmware, set controller parameters, and set fault management and battery backup options. This chapter also specifies how to configure your disk drive resources for the first time into drive groups, logical RAID drives, and hot spare drives, using either an automatic or interactive process.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Conventions This guide uses the following conventions: Style Meaning boldface monospace type plain monospace type italic type screens, To be input by the user Screen text For emphasis, manual titles, utilities, menus, and filenames Special Notices This guide uses in the following to emphasize specific information.
About This Guide Related Documentation Refer to the RAID Array 200 Online Management Utility for your operating system User's Guide for information on your operating system drive load procedure and the online management utilities. EK–SWRA2–IG.
1 Overview of RAID and RAID Array 200 Subsystems This chapter presents definitions and descriptions of RAID (Redundant Array of Independent Disks) subsystems, including the levels of RAID available to users of StorageWorks RAID Array 200 Subsystems. 1.1 What is RAID? Hardware RAID (Redundant Array of Independent Disks) is a set of multiple disk drives and a specialized array controller that manages how data is distributed across the disk drives.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 1.1.1 Implementing RAID through Hardware, or through Software RAID can be implemented in storage subsystems through dedicated hardware, or through software. In a hardware implementation the RAID algorithms run on the controller board attached to your server I/O bus. In a software implementation, the RAID algorithms run on your server CPU in concert with the operating system.
Chapter 1. Overview of RAID and RAID Array 200 Subsystems Striping offers a high I/O rate when compared to the I/O rate of a single disk. RAID 0 does not provide redundancy, therefore, if any drive fails all data is lost. (Other RAID levels provide redundancy by generating array parity information for reconstructing data if a drive fails, or by mirroring disks).
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 1.1.2.2 RAID 1 RAID 1 writes a segment of data to two drives simultaneously, as shown in Figure 1–2. This is the simplest way to achieve data redundancy, known as mirroring. If one drive fails the controller can retrieve the data from the other drive in that set. The cost of data storage is greater than for a single drive, since double the disk space is required.
Chapter 1. Overview of RAID and RAID Array 200 Subsystems 1.1.2.3 RAID 0 + 1 RAID 0 + 1 is a combination of striping and mirroring data, as shown in Figure 1–3. RAID 0 + 1 writes data across the drives in the same striping fashion as RAID 0, and achieves redundancy by mirroring data similar to RAID 1. In RAID 0 + 1, unlike RAID 1, the data disks are also the mirror disks. RAID 0 + 1 mirrors data back onto the data disks rotated by 1 drive.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 1.1.2.4 RAID 5 RAID 5 combines striping (writing data across a set of drives) and redundancy, as shown in Figure 1–4. RAID 5 provides redundancy by generating parity information. RAID 5 stripes both segments of data and parity information.
Chapter 1. Overview of RAID and RAID Array 200 Subsystems 1.1.2.5 JBOD JBOD (Just a Bunch Of Drives) allows you to install and access a disk in a StorageWorks RAID Array 200 Subsystem as a conventional disk drive. Figure 1–5 shows a JBOD configuration. As with any non-RAID drive configuration, JBOD does not provide data redundancy. Figure 1–5 A JBOD Configuration SCSI-2 Disk Array Controller SCSI SCSI SCSI Data 1 Data 2 Data 3 Block 1 - End Block 1 - End Block 1 - End EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 1.2 Key Concepts The following sections define key terminology used to describe and operate RAID arrays, or StorageWorks RAID Array 200 Subsystems. 1.2.1 Disk array Disk array, or array refers to a set of disk drives and a specialized array controller. The array controller keeps track of how data is distributed across the drives. 1.2.
Chapter 1. Overview of RAID and RAID Array 200 Subsystems 1.2.4.2 Write-Through caching Write-Through caching refers to a caching policy in which the data is written to disk before the controller acknowledges that a write operation has completed successfully. If you choose this caching policy and there is a power failure without battery backup, you minimize the chance of data loss. 1.2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 1.3 About the Storage Works RAID Array 200 Subsystems These unique products, ideal for desktop systems or workgroup servers, provide the power and flexibility of controller-based RAID with the scaleability of StorageWorks packaging.
Chapter 1. Overview of RAID and RAID Array 200 Subsystems 1.3.2 An Array of Disks in a Storage Enclosure StorageWorks RAID Array 200 Subsystems support the use of between 1 and 21 disk drives: (See Release Notes for a list of supported disk drives with part numbers.) You can install these drives in a StorageWorks storage pedestal; or your system's internal storage enclosure. 1.3.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 1.3.4 The RAID Array 200 Standalone Configuration Utility The RAID Array 200 Standalone Configuration Utility is MS-DOS, bootable software for Intel systems and ARC compliant for AXP systems.
2 Preparing to Install This chapter presents the system requirements and, a detailed overview of the procedures required to install a StorageWorks RAID Array 200 Subsystem with an EISA or PCI bus. 2.1 Installation Overview Thank you for purchasing a StorageWorks RAID Array 200 Subsystem.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Table 2-1 Roadmap for Installing Your RAID Array 200 Subsystem for the First Time Number of Channels EISA PCI 1-channel Chapter 2 Preparing to Install Chapter 2 Preparing to Install Chapter 3 Updating EISA Information Chapter 4 Installing a 1-Channel Controller Chapter 4 Installing a 1-Channel Controller Chapter 6 • Determining version of Controller firmware • Setting Controller Parameters • Configuring Your Ar
Chapter 2. Preparing to Install 2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 2.2.1 Verifying User Supplied Hardware and Software (System Requirements) StorageWorks RAID Array 200 Subsystems require the following user-supplied hardware and software: • Intel or AXP-based computer A 3.5”, 1.
Chapter 2. Preparing to Install 2.2.2 Verifying the Controller Kit and Storage Enclosure The specific components of the controller kit and storage enclosure vary depending upon whether you purchased a 1- or 3-channel controller and depending upon for which bus, and operating system you purchased it. The following Sections 2.2.2.1 and 2.2.2.2 specify the components you will receive for each subsystem configuration. 2.2.2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 2.2.3 Verifying the Cables Required for your Subsystem Configuration Tables 2–2 and 2–3 describe the cables required to connect an EISA or PCI controller to an external storage enclosure. You order these cables separately; (see the Release Notes for current part numbers) they do not come as part of the purchase of your controller or storage enclosures.
Chapter 2. Preparing to Install To install an EISA RAID controller go on to Chapter 3 to update your EISA configuration file. To install a PCI RAID controller go on to Chapter 4 to install a 1-channel controller, or to Chapter 5 to install a 3-channel controller. To upgrade your controller's firmware or BIOS, go to Chapter 9. EK–SWRA2–IG.
3 Updating EISA Information This chapter describes the procedures required for updating EISA Configuration information on computer systems into which you install an EISA RAID controller. The procedures require you to run the EISA configuration (or system configuration) utility. 3.1 Updating EISA Information You need to run the EISA Configuration Utility (ECU) to update the configuration information stored on nonvolatile memory in your system whenever you add or remove EISA controllers.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 3.2 Running the ECU You need to run the EISA Configuration Utility (ECU) to update the configuration information stored on nonvolatile memory in your system whenever you add or remove EISA controllers. The system BIOS uses the contents of the EISA nonvolatile memory during boot to initialize EISA controllers installed in your computer.
Chapter 3. Updating EISA Information Figure 3–1 EISA Configuration Utility Main Menu EISA Configuration Utility Steps in configuring your computer STEP 1: Important EISA configuration information STEP 2: Add or remove boards STEP 3: View or edit details STEP 4: Examine required details STEP 5: Save and exit Select=ENTER 5. Choose the Add or remove boards option (Step 2 in this example) and press the Enter key. 3.2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 3–2 The Add or Remove Board Screen Step 2: Add or remove boardsHelp=F1 Listed are the boards and options detected in your computer. ♦ To add boards or options which could not be detected, or which you plan to install, press Insert key. ♦ To move the highlighted board to another slot, press the F7 key. ♦ To remove the highlighted board from the configuration, press the Del key.
Chapter 3. Updating EISA Information 2. Use your arrow keys to select an empty slot for the 1-channel controller and press the Insert key. The ECU displays a screen similar to Figure 3–3. Figure 3–3 The Add Board Screen Step 2: Add or remove boardsHelp=F1 Add To add a board to the list, you must locate the diskette containing the boards configuration (.CFG) file. • If there is an option configuration diskette included with your board or option, insert that diskette and press ENTER.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 3–4 The Add Configuration File Screen Step 2: Add or remove boards Help=F1 Add Configuration (CFG) file Select a file to add. Directory: A:\*.CFG !MLX0077.CFG Digital SWXCR-EA (1-ch) EISA RAID Cntlr (Generic) !MLX0075.CFG Digital SWXCR-EB (3-ch) EISA RAID Cntlr (Generic) AMLX0077.CFG SWXCR-EA (1-ch) EISA RAID Cntlr for OSF, VMS AMLX0075.CFG SWXCR-EB (3-ch) EISA RAID Cntlr for OSF, VMS Select=ENTER 4.
Chapter 3. Updating EISA Information Figure 3–5 The Insert Diskette Screen Destination Diskette Insert the SYSTEM CONFIGURATION diskette. Ok=ENTER 5. Remove the RAID Array 200 Management Utility diskette, insert the ECU diskette, and press the Enter key. The ECU displays an add confirmation screen similar to Figure 3–6. Figure 3–6 The Add Board Confirmation Screen Step 2: Add or remove boards Add confirmation Board Name:Digital SWXCR-EA (1-ch) EISA RAID Cntlr (Generic) Ok=ENTER 6.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 3–7 The Add Slot Screen Add Select an acceptable slot for the board and press ENTER. Slot 1(Empty) Slot 2(Empty) Slot 3(Empty) Slot 4(Empty) Slot 5(Empty) Slot 6(Empty) à The ( ) indicates an acceptable slot for the board >Ok=Enter< 7. 3–8 Select the slot where you want to install the controller (the slot appears highlighted) and press the Enter key.
Chapter 3. Updating EISA Information Figure 3–8 Add Slot Step 2 Step 2: Add or remove boardsHelp=F1 Listed are the boards and options detected in your computer. ♦ To add boards or options which could not be detected, or which you plan to install, press the Insert key. ♦ To move the highlighted board to another slot, press the F7 key. ♦ To remove the highlighted board from the configuration, press the Del key. When you have completed this step, press the F10 key.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 8. Press the F10 key. The Steps in configuring your computer menu appears similar to Figure 3–9. Figure 3–9 The ECU Main Menu EISA Configuration Utility Steps in configuring your computer STEP 1: Important EISA configuration information ü STEP Add or remove boards 2: STEP 3: View or edit details STEP 4: Examine required details STEP 5: Save and exit Select=ENTER 3–10 EK–SWRA2–IG.
Chapter 3. Updating EISA Information 3.2.3 Setting BIOS Address and Interrupt The .CFG file that you copied during the Add or remove boards procedure sets the BIOS and Interrupt parameters with default values. You may need to change these settings as described in Steps 2 and 3. NOTE The Add or remove boards procedure sets the BIOS for Intel-based systems only; Alpha systems do not use the BIOS 1.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 2. 3. Intel systems boot from the adapter board with the lowest BIOS address. If your system boots off an EISA adapter board, then you need to view the BIOS address of all the controllers installed in your system to make sure that the adapter from which you boot has the lowest BIOS address.
Chapter 3. Updating EISA Information Figure 3–11 The ECU Main Menu EISA Configuration Utility Steps in configuring your computer ü ü STEP 1: Important EISA configuration information STEP 2: Add or remove boards STEP 3: View or edit details STEP 4: Examine required details STEP 5: Save and exit Select=ENTER 5. Select the Save and exit option (Step 5 in this example) and press the Enter key. A save and exit screen appears similar to Figure 3–12. EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 3–12 The Save and Exit Screen Step 5: Save and Exit Help=F1 In order to complete the configuration process, you must save your configuration. In this step, you must select whether to save your configuration or discard your changes before exiting this program.
Chapter 3. Updating EISA Information Figure 3–13 The Reboot After Changing the ECU Screen EISA Configuration Utility Help=F1 Your configuration file has been saved, and if possible a backup SYSTEM.SCI file has been made on the current drive. To complete your configuration, you must do one of the following: If you need to install boards or change switches and jumpers on boards already installed, turn off your computer and do so.
4 1-Channel RAID Controller Installation This chapter contains the information needed to install either the EISA or PCI 1-Channel RAID Controller Board in a host computer. The 1-channel RAID Controller Board combines the functionality of a SCSI-based RAID controller with the host computer’s internal bus. The EISA or PCI 1-channel controllers each have two channel-0 connectors, one on the top of the printed circuit board and the second on the external connector.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility EISA computer – in the slot selected when you ran the ECU PCI computer – in any available PCI slot. When the system is powered-on, the host system will locate and establish communications with the PCI board.
Chapter 4. 1-Channel RAID Controller Installation To perform the physical installation of the RAID Controller board, take precautions to protect the board from static discharge and follow these steps: CAUTION To protect the board from static discharge, wear an electrostatic discharge (ESD) wrist strap. 1. Turn off the power to your computer system and attached peripherals. 2. Unscrew and take off the remove the computer cover.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 4.2.1 Shelf_OK Jumper Installation and Verification NOTE SHELF_OK allows the fault signals from the Expansion Storage Pedestal to be fed back to the RAID Controller. The Shelf_OK jumpers are located under the blowers on the rear of the pedestal. Use the following steps, as appropriate for your pedestal, to verify or install the jumpers. 1.
Chapter 4. 1-Channel RAID Controller Installation 4. Determine if the pedestal’s backplane has a jumper block located as shown in Figure 4-4. If it does, make sure that the pins are jumpered as shown in the balloon (this enables “Shelf_OK_External_Cables). 5. If there is no jumper block, it is necessary to remove both the SCSI backplane active terminator board and the SCSI backplane jumper board from the backplane to access the Shelf_OK jumpers.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 6. Terminator – Check that the SHELF_OK jumper is installed as shown in Figure 4-5. Figure 4–5 Shelf_OK Jumper on the SCSI Backplane Terminator Board 7. Jumper – Check that the SHELF_OK jumper is installed as shown in Figure 4-6. Figure 4–6 Shelf_OK Jumper on the Jumper 8. Replace both the SCSI backplane active terminator board and the SCSI backplane jumper board previously removed from the backplane. 9.
Chapter 4. 1-Channel RAID Controller Installation The Expansion Storage Pedestal has an internal wiring length equivalent to 1 meter of cabling, therefore, the external cabling cannot exceed 2 meters. There are three methods of routing the cable within the pedestal. Read each cable installation procedure and then choose the best one for your location, depending upon the length of the cable used and the appearance desired. 4.2.2.1 Cable Installation - Method 1 1.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 4–7 Routing the SCSI Cable — Method 1 4.2.2.2 Cable Installation - Method 2 4–8 1. Open the front and rear bezel doors and remove both bezels from the pedestal by pressing down on the locking tabs at the bottom of each bezel. 2. Remove a filler panel on the rear bezel that is closest to the host computer (see Figure 4-8). 3.
Chapter 4. 1-Channel RAID Controller Installation Figure 4–8 Removing a Knockout Panel Figure 4–9 Routing the SCSI Cable — Method 2 EK–SWRA2-IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 4.2.2.3 Cable Installation — Method 3 1. Open the front and rear bezel doors and remove both bezels from the pedestal by pressing down on the locking tabs at the bottom of each bezel. 2. Remove the filler panel on the front bezel that is closest to the host computer (see Figure 4-8). 3.
Chapter 4. 1-Channel RAID Controller Installation 4.2.2.4 Labeling the Installed Drives Label the disk drives that are installed in the Expansion Storage Pedestal to identify their Device Type, Channel, and SCSI ID (for example, Dev: RZ26L, CH: 0, ID: 1). NOTE The SCSI ID is determined by the slot number in the Expansion Storage Pedestal, as shown in Figure 4-11. To support the Expansion Storage Pedestal’s hot swap option, check the label on the power supply SBB to ensure it is BA35X-HA Rev. L01 or later.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 4.2.3 Power Cable Installation 1. Remove the rear bezel. 2. Thread the female end of the ac power cable under the handle of the pedestal base and connect the cord to the ac receptacle on the ac distribution unit. (See Figure 4-12). 3. Connect the other end of the ac power cable to an ac power source. 4. Replace the front and rear bezel doors. 5. Power up the storage pedestal. 6.
Chapter 4. 1-Channel RAID Controller Installation 7. On Intel systems with the BIOS enabled, a message similar to the following will appear during the boot process. This confirms proper installation of the RAID Controller. SWXCR BIOS Version v.v Digital Equipment Corporation SWXCR Firmware Version x.x SWXCR RAM: x Mbytes or The equivalent for PCI If the message does not appear or the boot process aborts, refer to Chapter 8, Troubleshooting.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility NOTE The order in which you turn-on and -off your system and storage enclosures effects the operation of your RAID Array 200 Series Subsystem. If the RAID controller can not access the drives in your storage enclosures, it marks the drives as failed.
5 3-Channel RAID Controller Installation This chapter contains the information needed to install either the EISA or PCI 3-Channel RAID Controller Board in a host computer. The 3-channel RAID controller boards combine the functionality of a SCSIbased RAID controller with the host computer’s internal EISA or PCI bus. The EISA board has four connectors: two channel-0 connectors, a channel-1 connector, and a channel-2 connector.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 5.1 Installing the 3-Channel RAID Controller CAUTION To avoid static damage, wear a grounded wrist strap while installing the RAID controller board. To install the RAID controller board, follow these steps. 1. Turn off power to the computer system and disconnect the power cable. 2. Remove the cover from the host computer system.
Chapter 5. 3-Channel RAID Controller Installation 6. Install the RAID controller board. NOTE On some computer system bulkheads, various size knockout panels are provided for mounting external connectors. The channel-1/channel-2 EISA internal cable connector or the channel-2 PCI internal cable connector can be mounted in one of these knockout panels. • EISA computer – in the slot selected when you ran the ECU.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 5–2 Board Layout of the 3-Channel Controller (PCI Version) 5.1.1 EISA Controller Internal Cabling 1. Orient the internal bus cable as shown in Figure 5-3. Insert the short internal cable connector into the internal channel-1 connector on the RAID controller. 2. Insert the long cable connector into the internal channel-2 connector. 3.
Chapter 5. 3-Channel RAID Controller Installation Figure 5–3 Internal Cable Connections for the 3-Channel EISA Controller EK–SWRA2-IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 5.1.2 PCI Controller Internal Cabling 1. Orient the internal bus ribbon cable as shown in Figure 5-4 (PCI). Insert the 90 degree connector of the internal ribbon cable into the internal channel-2 edge connector on the PCI controller. 2. Fold the cable as shown. 3. Attach the bulkhead panel with its 68-pin connector to the host system bulkhead and tighten the screw.
Chapter 5. 3-Channel RAID Controller Installation 5.2 Cabling Cabling from the RAID controller board can be to an internally mounted storage array or to the Expansion Storage Pedestal. If the board is connected to an internal array, refer to the documentation that came with the array to see that it is properly configured. When using the Expansion Storage Pedestal, the proper installation of the Shelf_OK signal jumpers must be verified.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 5.2.1 Shelf_OK Jumper Installation and Verification NOTE SHELF_OK allows the fault signals from the Expansion Storage Pedestal to be fed back to the RAID Controller. The Shelf_OK jumpers are located under the blowers on the rear of the pedestal. Use the following steps, as appropriate for your pedestal, to verify or install the jumpers. 1.
Chapter 5. 3-Channel RAID Controller Installation Figure 5–5 Removing a Blower 4. Determine if the pedestal’s backplane has a jumper block located as shown in Figure 5-6. If it does, make sure that the pins are jumpered as shown in the balloon (this enables “Shelf_OK_External_Cables). 5. If there is no jumper block, it is necessary to remove both the SCSI backplane active terminator board and the SCSI backplane jumper board from the backplane. EK–SWRA2-IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 5–6 Pedestal Backplane Active Terminator and Jumper Board Locations 6. Terminator – Check that the SHELF_OK jumper is installed as shown in Figure 5–7. Figure 5–7 Shelf_OK Jumper on the SCSI Backplane Terminator Board 5–10 EK–SWRA2–IG.
Chapter 5. 3-Channel RAID Controller Installation 7. Jumper – Check that the SHELF_OK jumper is installed as shown in Figure 5–8. Figure 5–8 Shelf_OK Jumper on the Jumper 8. Replace both the SCSI backplane active terminator board and the SCSI backplane jumper board previously removed from the backplane. 9. Replace both blowers. Align each blower with its power connector on the pedestal’s backplane and insert the blower straight in.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Cabling external to the Expansion Storage Pedestal cannot exceed 2 meters. The Expansion Storage Pedestal has an internal wiring length of approximately 1 meter, therefore, the external cabling cannot exceed 2 meters. There are three methods of routing the cable within the pedestal.
Chapter 5. 3-Channel RAID Controller Installation Figure 5–10 External Cable Connections — PCI EK–SWRA2-IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 5.2.2.1 Cable Installation - Method 1 1. Open the front and rear bezel doors of each pedestal and remove both bezels from the pedestal by pressing down on the locking tabs at the bottom of each bezel. 2. Thread one end of the SCSI cable under the rear handle of the pedestal base, and through the opening at the top of the pedestal to the front of the unit (see Figure 5–11). 3.
Chapter 5. 3-Channel RAID Controller Installation 5.2.2.2 Cable Installation - Method 2 1. Open the front and rear bezel doors of each pedestal and remove both bezels from the pedestal by pressing down on the locking tabs at the bottom of each bezel. 2. Remove a knockout panel on the rear bezel that is closest to the host computer and route the SCSI cable through the cutout. (See Figure 5–12). 3.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 5–13 Routing the SCSI Cable — Method 2 5.2.2.3 Cable Installation — Method 3 5–16 1. Open the front and rear bezel doors of each pedestal and remove both bezels from the pedestal by pressing down on the locking tabs at the bottom of each bezel. 2. Remove a knockout panel on the front bezel that is closest to the host computer (see Figure 5–12). 3.
Chapter 5. 3-Channel RAID Controller Installation Figure 5–14 Routing the SCSI Cable — Method 3 EK–SWRA2-IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 5.2.2.4 Labeling the Installed Drives Label the disk drives that are installed in the Expansion Storage Pedestal to identify their Device Type, Channel, and SCSI ID (for example, Dev: RZ26L, CH: 0, ID: 1) (see Figure 5–15). NOTE The SCSI ID is determined by the slot number in the Expansion Storage Pedestal, as shown in Figure 5–15.
Chapter 5. 3-Channel RAID Controller Installation 5.2.3 Power Cable Installation 1. Open the rear bezel door of each pedestal and remove the rear bezel by pressing down on the locking tabs at the bottom of each bezel. 2. Thread the end of the ac power cable under the handle of the pedestal base and connect the cord to the ac receptacle on the ac distribution unit. (See Figure 5–16.) 3. Connect the end of the ac power cable to an ac power source. 4. Replace the front and rear bezel doors. 5.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7. On Intel systems with the BIOS enabled, a message similar to the following will appear during the boot process. This confirms proper installation of the RAID Controller. SWXCR BIOS Version v.v Digital Equipment Corporation SWXCR Firmware Version x.x SWXCR RAM: x Mbytes or The equivalent for PCI If the message does not appear or the boot process aborts, refer to Chapter 8, Troubleshooting.
Chapter 5. 3-Channel RAID Controller Installation NOTE The order in which you turn-on and -off your system and storage enclosures affects the operation of your RAID Array 200 Series Subsystem. If the RAID controller can not access the drives in your storage enclosures, it marks the drives as failed. Therefore to avoid the controller trying to access the drives with the storage enclosure turned off, power-on and off your system and storage enclosures in the following order: Power-on 1.
6 Configuring Your Array This chapter describes how to configure your array, automatically or interactively; including defining a spare drive, initializing a logical RAID drive; and saving the RAID configuration to a diskette. 6.1 Getting Started After installing your StorageWorks RAID Array 200 Series Subsystem, you need to configure drive groups and logical RAID drives on your array. If you configured your array previously and want to change the configuration, see Chapter 7.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 6.1.1 Turning-On and -Off Your System and Storage Enclosures The order in which you turn-on and -off your system and storage enclosures effects the operation of your RAID Array 200 Series Subsystem. If the RAID controller can not access the drives in your storage enclosures, it marks the drives as failed.
Chapter 6. Configuring Your Array Figure 6–1 The Main Menu of the Standalone Utility Go to Sections 6.1.2.3 and 6.1.2.4 to learn how to use the utility, and then to Section 6.3 to set options. EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 6.1.2.2 Invoking the Standalone Utility on AXP Systems To invoke the Standalone Utility on AXP systems, follow these steps: 1. Invoke the ARC console menu shown in Figure 6–2. Consult your AXP system documentation to invoke the ARC console. Figure 6–2 The ARC Console for An AXP System ARC Multiboot DEC Version 2.
Chapter 6. Configuring Your Array Figure 6–3 The Main Menu of the Standalone Utility Go to Sections 6.1.2.3 and 6.1.2.4 to learn how to use the utility, and then to Section 6.3 to set options. 6.1.2.3 Using the Standalone Utility From the standalone utility main menu, you can invoke each of the listed options. Use the arrow keys to move through the menu and highlight your selection, or you can type the highlighted letter (usually the first letter of the option). Press the Enter key to select the option.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 6.1.2.4 Exiting the Utilities Press the Esc key twice from the main menu to exit the standalone utility. The utility prompts you to confirm that you want to exit. Select Yes and press the Enter key to exit. 6.2 6.3 Determining Version of Controller Firmware 1. Refer to the Release Notes to determine the current (latest) version of firmware for the type of controller you have, EISA or PCI. 2.
Chapter 6. Configuring Your Array Figure 6–4 The Edit/View Parameters Menu 6.3.1.1 Completing the Controller Parameters To set the Controller Parameters, follow these steps. 1. Use the arrow keys to highlight the Data Parameters option on the Edit/View Parameters menu and press the Enter key. The Physical Parameters screen appears, similar to the one shown in Figure 6–5, with the Default rebuild rate option highlighted. 2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–5 The Physical Parameters Screen NOTE You must set this option prior to creating logical drives. If you set this option when you have existing logical RAID drives, you will lose all of the data on the existing logical RAID drives. 4. Press the Enter key to scroll through the available data chunks sizes that the controller will stripe across disks. The default stripe size is 8K bytes.
Chapter 6. Configuring Your Array 6.3.1.2 Setting the SCSI Transfer Parameters To set the SCSI Transfer Parameters, follow these steps. 1. Use the arrow keys to highlight the SCSI Xfr Parameters option on the Edit/View Parameters menu and press the Enter key. An Enter Channel # box appears, similar to the one shown in Figure 6–6, at the bottom right of the screen. Figure 6–6 Enter Channel Box Appears at Bottom Right 2. Enter a channel number of the attached controller and press the Enter key.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–7 The SCSI Transfer Parameters for the Specified Channel 3. 4. 5. 6. 6–10 Press the Enter key to scroll through the Data transfer rate options. The default is 10 MHz. The 10 MHz setting provides the best performance, and supports only a 3 meter SCSI cable length. Select the 5 MHz setting if you plan to use a 6 meter SCSI cable.
Chapter 6. Configuring Your Array 6.3.1.3 Setting the Startup Parameters To set the Startup Parameters, follow these steps. 1. Use the arrow keys to highlight the Startup Parameters option on the Edit/View Parameters menu and press the Enter key. The Start up Parameters menu appears, with the Spin up option highlighted shown in Figure 6–8. Figure 6–8 The Start Up Parameters Menu 2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility When you set the Spin up option to automatic, you can specify how many devices you want the controller to spin up at a time in the Number of devices per spin field. You can also specify in the Delay field, for what interval the controller waits before spinning up the next number of devices. (The controller spins up 2 devices per spin at six seconds apart by default.
Chapter 6. Configuring Your Array Figure 6–9 Edit/View Parameter Menu 2. Use the arrow keys to highlight the Hardware Parameters option and press the Enter key. The utility displays the current status of the StorageWorks Fault Management and Battery Backup options, as shown in Figure 6–10. EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–10 The Hardware Parameters Screen 3. The Battery Backup option appears highlighted. Press the Enter key to change the setting if necessary. 4. Use the arrow keys to highlight the StorageWorks Fault Management option, and press the Enter key to change the setting, if necessary. 5. Press the Esc key to exit when you finish setting these options. The Edit/View Parameters menu appears. 6.
Chapter 6. Configuring Your Array Now, go on to Section 6.4 to configure the array. 6.4 Configuring the Array When you configure your array, you allocate your disk drive resources into drive groups and hot spares. You then create logical RAID drives, which allow your computer to view the combined disk space of each of the disk drives in the group as a single drive.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Hot Spare A hot spare drive is a drive in your storage enclosure that you do not bind into a drive group, but designate as a hot spare. The drive remains unused and available in your storage enclosure until a disk fails from a drive group on which you configured a redundant logical RAID drive. Then, the RAID controller automatically starts to rebuild the failed drive's data onto the hot spare disk.
Chapter 6. Configuring Your Array 6.4.2 Planning the Configuration You already started planning your configuration when you selected what to purchase for your StorageWorks RAID Array 200 Series Subsystem. Prior to actually configuring the subsystem, you need to plan how you want to maximize the resources that you purchased. To that end, this section includes two sample configurations to show you ways that you can configure to maximize the potential of your subsystem.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Table 6–1 Data Availability Configuration Through RAID 5 Drive Group Number of Drives in Group Drive Location Group Type Usable Capacity A 3 Drive 1 = Ch 0, SCSI ID 0 RAID 5 2GB RAID 5 2GB RAID 5 2GB Drive 2 = Ch 1, SCSI ID 0 Drive 3 = Ch 2, SCSI ID 0 B 3 Drive 1 = Ch 0, SCSI ID 1 Drive 2 = Ch 1, SCSI ID 1 Drive 3 = Ch 2, SCSI ID 1 G 3 Drive 1 = Ch 0, SCSI ID 6 Drive 2 = Ch 1, SCSI ID 6 Drive 3 = Ch
Chapter 6. Configuring Your Array 6.4.2.2 Sample Configuration for Drive Connectivity and Performance The configuration shown by this example provides drive connectivity and performance in the event that you want to configure the total possible number of drives, 21, and maximize their usable capacity. You can not achieve high availability with this configuration, because, in order to maximize usable capacity, and performance, you can not utilize redundancy.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 6.4.
Chapter 6. Configuring Your Array 6.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 4. 5. Press the Enter key to select No. This sets the cache policy to Write Through (the recommended policy, see Section 6.6.2.2 Choosing a Caching Policy for a description of the cache options). The utility displays a window with Automatic Configuration at the top of the screen and the message, Saving configuration, please wait ..., at the bottom of the screen.
Chapter 6. Configuring Your Array 6.5.2 Initializing a Logical RAID Drive Initialize a logical RAID drive before you use it. The utility initializes the logical RAID drive by writing a pattern of zeros to it. This creates a starting parity for a logical RAID drive with parity, or starting data for a logical RAID drive which does not have parity. CAUTION Do not initialize a logical RAID drive if it has valid data. Initialization overwrites and destroys all data.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–12 Initialize Logical Drive Screen 3. 4. 5. Press the Enter key. A confirmation window appears displaying the following message: Do you want to proceed with initialization? Select Yes. An Initialize Logical Drive status bar appears at top of screen indicating amount of initialization completed. The bar gradually fills as the initialization process completes.
Chapter 6. Configuring Your Array 6.5.3 Saving the RAID Configuration to a Diskette Save a copy of your RAID configuration on a diskette. Then, in the event that your controller ever fails, you can restore your configuration onto a new controller from a backup copy on floppy disk. To save the configuration, follow these steps: 1. Insert a blank diskette in your system's floppy drive. 2. Press the Enter key to select the Tools option from the main menu.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 4. 5. Press any key to Continue. The Backup/Restore Conf menu appears. Select Backup from the Backup/Restore Conf menu. The utility prompts you to enter a name for the file. 6. Enter the path (for example, a:) and an appropriate file name with up to eight characters and a three character file extension (for example, a:newconf.sav) and press the Enter key.
Chapter 6. Configuring Your Array 6.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 6.6.1 Creating a Drive Group A drive group is from one to eight drives that operate as a single drive. Determine how many drives to use for each drive group based on the following: • The RAID levels of the logical RAID drives you will create See Table 6–3 to see the minimum and maximum number of drives allowed for each RAID level. (You can create multiple logical RAID drives of varying RAID levels on a drive group.
Chapter 6. Configuring Your Array Table 6–3 Number of Drives You Can Use In a Drive Group for Each RAID Level RAID Level Number of Drives in Drive Group Data Redundancy 2 to 8 Amount of Storage Available for Unique Data 100% 0 1 2 50% Yes 0+1 3 to 8 50% Yes 5 3 to 8 66%87% Yes JBOD 1 100% No No NOTE The following equation determines the amount of storage available for unique information in a RAID 5 logical RAID drive.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Creating a drive group requires the following procedures: • Defining a Drive Group • Arranging a Drive Group Determine how you want to allocate your drive resources then follow Sections 6.6.1.1 to 6.6.6 to configure the drives in your array. 6.6.1.1 Defining a Drive Group Use this option to bind drives together into drive groups.
Chapter 6. Configuring Your Array Figure 6–14 The New Configuration Screen 3. Press the Enter key to select the Define Drive Group option. The utility displays a drive matrix that shows the drives connected to the adapter and the status of each, as shown in Figure 6–15. The Create Group function appears highlighted. NOTE If you are uncertain about the size of a particular drive, select the Device Information option on the Define Drive Group screen to check the size before you create a drive group.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–15 The Group Definition Menu 4. 5. Press the Enter key to select the Create Group option. The cursor moves to the drive matrix. Position the cursor on each drive with a status of RDY(ready) that you want to add to the drive group, one at a time, and press the Enter key.
Chapter 6. Configuring Your Array 6. 7. Press the Esc key after you add all the drives that you want for this drive group. Repeat Steps 3 through 6 of this procedure to create additional drive groups. If you plan to define a hot spare, leave at least one drive with RDY status. This drive must be of equal or greater capacity to the drives you assigned to drive groups. If you assign all the physical drives to drive groups, the system automatically highlights the Arrange Group option.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–16 Each Drive Assigned to a Group Appears with the Group Letter and a Number 6–34 EK–SWRA2–IG.
Chapter 6. Configuring Your Array 6.6.1.2 Arranging a Drive Group Arrange drive groups to specify the order in which you want to use them. The configuration utility allows you to create logical RAID drives on only one drive group at a time. You must use all of the disk space available on a drive group before you can begin creating logical RAID drives on the next group. To arrange the drive groups in the order in which you want to use them, follow these steps: 1.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–17 Arrange Drive Window 6–36 EK–SWRA2–IG.
Chapter 6. Configuring Your Array 6.6.2 Creating a Logical RAID Drive You create a logical RAID drive with part or all of the space available on a drive group. The logical drive allows your operating system to see and respond to that portion of the drive group as one physical drive. The logical RAID drive also defines how your system will store data on that disk space, based on the RAID level selected.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–18 Logical RAID Definition Menu 2. 6–38 Press Enter to select the Create Logical Drive option. A pop-up window displays a RAID level list, as shown in Figure 6–19. RAID levels require certain numbers of drives.
Chapter 6. Configuring Your Array Figure 6–19 Select RAID Level 3. 4. Use the up and down arrow keys to move to the RAID level for the logical RAID drive and press the Enter key to select. The amount of space available on the first drive group in the Grp/Drvs table displays in a pop-up window. Type the amount of space that you want to use for this logical RAID drive, and press the Enter key, or press the Enter key to select all available space.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–20 Logical RAID Drive Status Block 5. 6–40 Select Yes to confirm that you want to create this logical RAID drive. The utility adds the logical RAID drive to the list at the lower-left of the screen, and displays the write mode (caching policy), as shown in Figure 6–21. EK–SWRA2–IG.
Chapter 6. Configuring Your Array Figure 6–21 The New Logical RAID Drive Appears in List at Bottom Left 6. Repeat Steps 1–5 for up to eight logical RAID drives, or until you use all the capacity of all the available drive groups, whichever comes first. You can only create logical RAID drives on one drive group at a time and must use all of the space on a drive group before you can go on to the next one. The utility displays each logical RAID drive in the table on the lower-left of the screen.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 6.6.2.2 Choosing a Caching Policy The caching policy determines what procedure the RAID controller uses to write data to the logical drives. You can choose one of the following caching policies: • Write-Back caching: A caching policy in which the controller acknowledges that a write operation has completed successfully before data is written to the disks.
Chapter 6. Configuring Your Array 6.6.3 Defining Hot Spare Drives Define a hot spare to keep a drive available in your subsystem on which the RAID controller can automatically start to rebuild information. A hot spare drive replaces a drive that fails from any drive group on which you created a redundant logical RAID drive only. The hot spare drive must have a capacity equal to, or greater than, the failed drive.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 2. Use the arrow keys to select the drive with a status of RDY you want to define as a spare and press the Enter key. The utility changes the drive status to HSP (hot spare), as show in Figure 6–23. If you select the wrong drive or decide that you do not want a hot spare drive, press the Enter key again. The status of the drive returns to its previous status.
Chapter 6. Configuring Your Array 6.6.4 Saving the Logical RAID Drive Configuration To save the logical RAID drive configuration that you created, follow these steps: 1. Press the Esc key from the New Configuration menu or from the Define Spare screen. The utility displays a confirmation window, as shown in Figure 6–24. Figure 6–24 Configuration Confirmation 2. Use the up and down arrow keys to highlight Yes and press the Enter key to save the logical RAID drive configuration.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility NOTE If you start your system with the storage enclosure disconnected, with the storage enclosure's power turned-off, with different drives installed in subsystem slots, or with other physical changes, the system will abort the installation. (An Intel system will display the following BIOS message: Installation Aborted. Alpha systems do not have BIOS.
Chapter 6. Configuring Your Array 6.6.5 Initializing a Logical RAID Drive Initialize a logical RAID drive before you use it. The utility initializes the logical RAID drive by writing a pattern of zeros to it. This creates a starting parity for a logical RAID drive with parity, or starting data for a logical RAID drive which does not have parity. CAUTION Do not initialize a logical RAID drive if it has valid data. Initialization overwrites and destroys all data.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–25 Initialize Logical RAID Drive Screen 2. 3. 6–48 Use the arrow keys to move to each logical RAID drive that you want to initialize and press the Enter key to select it. A check mark appears beside each logical drive that you selected. Once you select all available logical drives, the utility automatically highlights the Start button.
Chapter 6. Configuring Your Array Figure 6–26 Proceed with Initialization Confirmation Message 4. Select Yes. An Initialize Logical Drive status bar appears at top of screen, as shown in Figure 6–27, indicating amount of initialization completed. The bar gradually fills as the initialization process completes. When done initializing, the utility prompts you to press any key to continue. EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 6–27 Progress Bar Displays Status of Initialization 5. Press any key. The utility displays a message indicating that it is saving the configuration, then the main menu appears. Go to Section 6.6.6 to continue with the next step of the installation, saving the configuration to a diskette. 6–50 EK–SWRA2–IG.
Chapter 6. Configuring Your Array 6.6.6 Saving the RAID Configuration to a Diskette Save a copy of your RAID configuration on a diskette. Then, in the event that your controller ever fails, you can restore your configuration onto a new controller from a backup copy on floppy diskette. To save the configuration, follow these steps: 1. Insert a blank diskette in your system's floppy drive. 2. Use the arrow keys to highlight the Tools option from the main menu, and press the Enter key to select it.
7 Maintaining the Array with the Standalone Configuration Utility This chapter presents information about maintaining the array with the standalone configuration utility. The tasks involve viewing the configuration, changing the configuration, checking parity, and working with drives 7.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility In addition, the standalone configuration utility floppy diskette contains utilities to update Intel system’s BIOS and the RAID controller firmware. 7.1.1 Turning-On and -Off Your System and Storage Enclosures The order in which you turn-on and -off your system and storage enclosures effects the operation of your RAID Array 200 Series Subsystem.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility 7.1.2 Using the Utility Use the Standalone utility to configure and maintain your RAID Array 200 Subsystem. Use the standalone utility to initially configure your subsystem and then to maintain the subsystem by changing the configuration, if necessary, and to view the status of the logical and physical drives. In addition, use the standalone utility to rebuild and format the drives as necessary. 7.1.2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.1.2.1.1 Invoking the Utility on an Intel System To invoke the standalone configuration utility on an Intel System, follow these steps: 1. Insert the Standalone Configuration utility diskette for Intel Systems in your floppy drive and boot from that drive. 2.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–2 Main Menu 7.1.2.1.2 Invoking the Utility on an AXP System To invoke the standalone configuration utility on an AXP system, you must first invoke the ARC console menu shown in Figure 7–3 on the ARC console. Consult your AXP system documentation to invoke ARC console menu. EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7–3 The ARC Console for an AXP System ARC Multiboot DEC Version 2.07 Copyright (c) 1993 Microsoft Corporation Copyright (c) 1993 Digital Equipment Corporation Boot Menu Boot Windows NT Boot an alternate operating system Run a program Supplementary menu ... Use the arrow keys to select, then press Enter. To invoke the standalone configuration utility, follow these steps: 1.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Press the Enter key to select the highlighted option. A description of the main menu screen appears in Figure 7–4. Figure 7–4 Elements of the Utility Screens Title Bar displays: version of utility, number of RAID controller channels, RAID controller physical location, and version of controller firmware loaded. Select one of the major functions which you can perform with the standalone configuration utility.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.2 Viewing the RAID Subsystem Configuration Use the standalone configuration utility to view and update the current subsystem configuration.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–5 View/Update Configuration Screen 2. Use the up and down arrow keys to highlight the View/Define Drive Group option from the View/Update Configuration menu and press the Enter key. The Group Definition menu appears with a disk drive matrix and drive group table displayed, as shown in Figure 7–6. EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–6 Group Definition Menu The drive matrix displays the following: • Target ID • Channel number • Drive group designator, if any, which allows you to see which disks belong to which drive groups, and how many disks belong to the group, based on the numbers assigned to the drives, 0–7.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Table 7–1 Drive Status Display FLD Drive Status Failed Meaning The device failed due to errors or you manually failed it. FMT Formatting The device is formatting. HSP Hot spare The device is configured as a hot spare for use in an automatic rebuild in the event of a disk failure in a redundant RAID configuration. OPT Optimal The device is online and configured for use.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 3. 4. Use the up and down arrow keys to highlight the Device Information option on the Group Definition menu and press the Enter key. The cursor appears in the drive matrix. Use the up and down arrow keys to move to the drive for which you want information and press the Enter key. The Device Information box replaces the Drive Group table, as shown in Figure 7–7. Figure 7–7 Device Information 5. 6. 7.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility 7.2.2 Viewing Logical RAID Drive Information Use the standalone configuration utility to view the following disk drive information: • Status of each disk drive • Current logical RAID drive configuration • Which logical RAID drives are associated with which drive groups To view disk drive and logical RAID drive information, follow these steps: 1.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 3. 4. 5. 7–14 The View Matrix list displays all of the logical RAID drives configured onto the disk drives in your subsystem. Use the up and down arrow keys to highlight a logical RAID drive and press the Enter key. The cursor moves to the drive matrix. It appears at disk drive 0 of the drive group associated with the selected logical RAID drive.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility 7.2.3 Viewing the Configuration through a Hard Copy Representation You can view your configuration by printing out a hard copy representation of it. To print a representation of your configuration, follow these steps: 1. Select the Tools option from the main menu and press the Enter key. The Tools menu appears as shown in Figure 7–9. Figure 7–9 Tools Menu 2. 3.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 4. 5. 6. 7. 8. 7–16 Select Yes and press the Enter key if you want to create a file with the name that you specified. If a file with the same name already exists, the utility will write over it. Select No and press the Enter key to return to the previous menu without creating a file. When you select Yes, the following prompt appears: Saved configuration print file.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility *********************************************************** ** Digital Disk Array Controller - Configuration Utility * • Version 2.20 * *********************************************************** ** CONFIGURATION INFORMATION OF : ============================== 1 Channel - 7 Target 1.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility • Saving a copy of the RAID configuration on a diskette Your RAID subsystem stores the configuration information on flash EEPROM/NVRAM on the RAID controller. In the event that your RAID controller fails, you must restore your configuration from a backup copy on floppy disk, otherwise you can not access your existing subsystem configuration.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.3.1. Creating a Drive Group You can create a drive at any time. After you initially configure the subsystem, you can create a drive group with drives that you did not previously configure into drive groups, or with new drives you add to the subsystem.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Table 7–2 Number of Drives You Can Use in a Drive Group for Each RAID Level RAID Level 0 Number of Drives in Drive Group 2 to 8 Usable Storage All Data Redundancy No 1 2 50% Yes 0+1 3 to 8 50% Yes 5 3 to 8 66%87% Yes JBOD 1 All No NOTE To maximize the I/O performance of your multichannel RAID subsystem, locate each member of a drive group on a separate SCSI channel.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.3.1.1 Defining a Drive Group Use this option to bind drives together into drive groups. To define a drive group, follow these steps: 1. Use the up and down arrow keys to highlight the View/Update Configuration option from the main menu and press Enter key to select it.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–11 The Define Drive Group 3. 4. Press the Enter key to select the Create Group option. The cursor moves to the drive matrix. Position the cursor on each drive you want to add to the drive group, one at a time, and press the Enter key.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–12 Adding a New Drive Group 5. 6. 7–24 Press the Esc key after you add all the drives that you want for this drive group. Repeat Steps 3 through 6 of this procedure to create additional drive groups. If you plan to define a hot spare, leave at least one drive with RDY (ready) status. This drive must be of equal or greater capacity to the drives you used in drive groups.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility NOTE If you select a drive for the drive group by mistake or you want to redefine a drive group, highlight the Cancel Group option and press the Enter key. The cursor appears on the first drive in a group on the matrix. Move the cursor to the drive group you want to cancel and press the Enter key. Check the drive groups that you defined to make sure you want these drive groups. Make any changes to the drive groups now.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Otherwise, repeat this for each drive group that you defined. When you arrange the last drive group, the New Configuration menu appears with the Define Logical Drive option highlighted. This completes the creation of your drive groups. Now, follow Section 7.3.2 to create logical RAID drives on your drive groups. Figure 7–13 Arrange Drive Window 7–26 EK–SWRA2–IG.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility 7.3.2 Creating a Logical RAID Drive You create a logical RAID drive with part, or all of the space available on a drive group. The logical RAID drive allows your operating system to see and respond to the selected space of the drive group as one physical drive. The logical RAID drive also defines how your system will store data on that disk space, based on the RAID level selected.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–14 Logical RAID Definition Menu 2. 7–28 Press Enter to select the Create Logical Drive option. A pop-up window, similar to the one shown in Figure 7–15, displays the RAID levels available for that logical RAID drive. Unavailable levels appear (black in this manual) gray (on you screen); you cannot select them.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–15 Logical RAID Definition Window 3. 4. Use the up and down arrow keys to move to a RAID level valid for the number of drives in this drive group (See Table 7–2 for a description of the number of drives required for each RAID level) and press the Enter key to select. A pop-up window appears, displaying the available space of the first drive group valid for this RAID level.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–16 Create Logical Drive Confirmation 5. 7–30 Select Yes to create this logical RAID drive. The utility adds the logical RAID drive to the list at the lower-left of the screen, similar to the screen shown in Figure 7–17 Or, Select No if you do not want to create this logical RAID drive. The confirmation box disappears. EK–SWRA2–IG.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–17 Displaying New Logical RAID Drive 6. Repeat Steps 1–5 for up to eight logical RAID drives, or until you use all the capacity of all the available drive groups, whichever comes first. You can only create logical RAID drives on one drive group at a time and must use all of the space on a drive group before you can go on to the next one.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.3.2.2 Choosing a Caching Policy The caching policy determines what procedure the RAID controller uses to write data to the logical drives. You can choose one of the following caching policies: • Write-Back caching: A caching policy in which the controller acknowledges that a write operation has completed successfully before data is written to the disks.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility If you plan to use one of your drives as a spare drive, go on to Section 7.3.3 to define a hot spare drive. Otherwise, go to Section 7.3.4 to save your array configuration. 7.3.3 Defining Hot Spare Drive Define a hot spare to keep a drive available in your subsystem on which the RAID controller can automatically start to rebuild information from a drive that fails. To define a spare drive, follow these steps: 1.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–18 The Define Spare Drive Screen 7–34 EK–SWRA2–IG.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility 7.3.4 Saving the Logical RAID Drive Configuration To save the logical RAID drive configuration that you created, follow these steps: 1. Press the ESC key from the Update/View Configuration menu or from the Define Spare screen. The utility displays a confirmation window, as shown in Figure 7–19 Figure 7–19 Configuration Confirmation Screen 2. Select Yes to save the logical RAID drive configuration.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.3.5 Initializing a Logical RAID Drive You must initialize a logical RAID drive before you can use it to ensure consistent RAID parity information. The utility initializes the logical RAID drive by writing a pattern of zeros to it. This creates a starting parity for a logical RAID drive with parity, or starting data for a logical RAID drive which does not have parity.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–20 Initialize Logical RAID Drive Screen 2. 3. Use the arrow keys to move to each logical RAID drive that you just created and press the Enter key to select it. A check mark appears beside each logical drive selected. Once you select all available logical drives, the utility automatically highlights the Start button. Otherwise, use the arrow keys to move the cursor to the Start button. Press the Enter key.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–21 Initialization Confirmation Window 4. 5. Select Yes. An Initialize Logical Drive status bar appears at the top of screen indicating amount of initialization completed. The bar gradually fills as the initialization process completes. When done initializing, the utility prompts you to press any key to continue. Press any key.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility 7.3.6 Saving a Copy of the RAID Configuration on a Diskette Save a copy of your RAID configuration on a diskette, because the utility stores the configuration on EEPROM/NVRAM on the controller board. If your controller ever fails, you will need to restore the configuration from disk after you install a new controller. To save the configuration, follow these steps: 1. Insert a blank diskette in your system's floppy drive. 2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.3.7 Restoring RAID Configuration onto a New Controller In the event that your RAID controller fails, you will need to restore the configuration information onto the new RAID controller. You can restore the RAID configuration information if you saved a copy of the configuration onto a diskette. To restore the configuration, follow these steps: 1.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility 4. 5. 6. 7. 8. 9. Press any key to continue. Press the Enter key to select the Restore Configuration option. The utility prompts you for a file name. Enter the path (for example, a:) and the name of the saved configuration file and press the Enter key. The utility prompts you to confirm you want to restore. Select Yes and press the Enter key.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.3.8 Deleting a Drive Group or Logical RAID Drive You use the same procedure to delete a drive group or a logical RAID drive. If you delete a drive group, you will be deleting any logical RAID drives associated with it. If you delete a logical RAID drive, you will be deleting the drive group on which it was configured and any other logical RAID drives configured on that drive group.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility NOTE You can only delete drive groups in the reverse order in which they were arranged. For example if you create drive groups a, b and c, and arrange them in that order, then you must delete drive groups c and b before you can delete drive group a. To delete a drive group or logical RAID drive, follow these steps: 1.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.4 Running Parity Check/Repair Use Parity Check on logical RAID drives with a redundant RAID level, such as, RAID 1, RAID 0+1, and RAID 5 to check the consistency of the RAID parity information. When you select Parity Check, the utility reads the data from the logical RAID drives and computes the parity for each series of blocks.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–23 Parity Check Screen Figure 7–24 Parity Check Progress Screen EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–25 Parity Check Passed Screen If the check fails, as shown in Figure 7–26, press any key to restore parity. A screen similar to Figure 7–27 appears. Press any key again to restore parity. The utility displays the results of the parity restoration on a screen similar to the one shown in Figure 7–28. 7–46 EK–SWRA2–IG.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–26 Parity Check Failed Screen Figure 7–27 Restore Parity Screen EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–28 Parity Successfully Restored Screen 7.5 Working with Drives This section describes the following activities you can perform with disk drives: • Format a drive • Fail a drive • Rebuild a drive • Mark a drive as optimal You can access these options from the Tools menu.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility 7.5.1 Formatting a Drive You can use the Standalone Configuration utility to perform a SCSI format of any unformatted drive with a RDY (ready) state, prior to using it in a drive group. It takes approximately 30 to 45 minutes for the utility to format a drive. To format a disk drive, follow theses steps: 1. Use the up and down arrow keys to highlight the Tools option from the main menu and press the Enter key to select it.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.5.2 Failing a Drive Use the Fail Drive option to change the status of a drive to failed when you want to prevent the controller from writing information to it. You would do this, for example, if you wanted to remove the drive from the storage enclosure, because you believed it was not operating properly.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–29 The Message Displayed When You Select a Drive to Fail 4. Press any key, and the utility displays a confirmation window as shown in Figure 7–30 EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 7–30 The Utility Prompts you to Confirm Failing the Selected Drive 5. 7–52 Highlight Yes and press the Enter key, and the utility spins down the selected drive. The status of the drive changes to FLD (failed), similar to the screen shown in Figure 7–31. EK–SWRA2–IG.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–31 The Utility Changes the Drive Status to FLD EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.5.3 Rebuilding a Drive Rebuilding a drive recreates a failed drive's data onto a replacement drive. You can rebuild a drive only for configurations with redundant RAID levels (RAID 1, RAID 0 + 1, and RAID 5). If a drive fails in a configuration without a redundant RAID level (RAID 0, JBOD) you can not recover data from the failed drive using the standalone configuration utility.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility To manually rebuild a drive, follow these steps: 1. Replace the failed drive with a working drive. 2. Use the up and down arrow keys to highlight the Rebuild option in the main menu and press the Enter key to select it. The utility displays the drive matrix, showing the drives and their status. 3. Use the up and down arrow keys to highlight a drive with a FLD (failed) status and press the Enter key to select it. 4.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.5.4 Troubleshooting a Failed Rebuild Sometimes the utility fails to rebuild data onto a replacement disk. A rebuild failure occurs because of errors with one of the disks from which the utility tries to rebuild the data.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility If the Rebuild Bad Block Table contains error entries, this indicates some internal error with one of the drives which the utility used to try to rebuild data. If no entries appear in the Rebuild Bad Block Table, check for physical problems, such as whether the drives in the drive group are properly seated, or if a connecting cable is loose. Attempt to rebuild the data onto the replacement drive again.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.5.5 Marking a Drive as Optimal Use the Make Optimal option to change the status of a drive to optimal when you want the controller to write information to it. For example, if you mark a drive failed to remove it safely from the storage enclosure, you would then make it optimal when you returned it to the storage enclosure.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–34 Mark a Drive Optimal 3. 4. 5. Use the arrow keys to move the cursor to the drive you want to change to optimal status and press the Enter key. The utility displays a warning message. Press any key to continue. A confirmation window appears. Select Yes and the utility starts the drives, and changes state of the selected drive to optimal. Press the ESC key to return to the main menu. EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 7.5.6 Drive Error Counts The standalone configuration utility keeps a count of drive errors that occur while the utility is running. You can view the number of drive error occurrences and the general type of error (hard, soft, and others) in a table. View the table to see the number and nature of errors being produced by a drive. Use this information to determine the reliability of a drive and whether to replace it.
Chapter 7. Maintaining the Array with the Standalone Configuration Utility Figure 7–35 Error Count Window EK–SWRA2–IG.
8 Troubleshooting and Service Information This chapter contains an overview of subsystem indicators, troubleshooting subsystem problems, and removal and replacement procedures. 8.1 Storage Pedestal Status Indicators (SBBs) This section provides an overview of the operation of the various StorageWorks components. Review these sections before you start troubleshooting.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility You can determine the status of both the pedestal blowers and each power supply by looking at the power supply LEDs (green) as shown in Figure 8-1. The left LED displays the pedestal cooling status and the right LED displays the power supply status.
Chapter 8. Troubleshooting and Service Information Table 8–1 Pedestal and Single Power Supply (PS) Status LEDs Shelf Status Power Supply Status Indicates On On Normal. Pedestal functioning properly. Off On Bad blower unit. Replace faulty blower. Off Off Power supply bad. Replace faulty power supply. NOTE When the pedestal is equipped with two power supplies, you must observe the LEDs on both power supplies to determine the status.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 8.1.3 Drive SBB Status LEDs Figure 8-2 shows a typical 3.5-inch disk drive SBB. The SBB has two LED indicators that display the status of the device. The status conditions of the LEDs are listed in Table 8-3. The LEDs have three states: on, off, and flashing. • The left LED (green) is the device activity LED and is on or flashing when the drive is active.
Chapter 8. Troubleshooting and Service Information Table 8–3 Disk Drive SBB Status LEDs 8.2 Activity Status Fault Status Indicates On Off Normal: Device is operating properly. Off Off Normal: Device is inactive and operating properly. On On Error: Device is hung up. Replace the device. Off On Error: Device is inactive and spun down. Replace the device. On/Off Flashing Error: Device is active and spinning down due to the fault. (When you turn the system on, brief flashing is normal.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Using the StorageWorks storage pedestal or shelves: Turn off the host computer. 1. Turn off power to the StorageWorks pedestal or shelves. 2. Check that the SCSI cables are connected correctly. Refer to Chapters 4 and 5 for cabling instructions. 3. Turn power on to the StorageWorks pedestal or shelves. 4. Verify that the LEDs on all the drives flash when power is applied. 5.
Chapter 8. Troubleshooting and Service Information Table 8–4 Troubleshooting Techniques Symptom Possible Cause(s) Action(s) to Take Drive SBB Fault Light is On Drive failed. Replace drive using the Replacing a Drive SBB section of this chapter. Drive SBB Fault and Activity Lights are On Drive failed or is hung. Replace drive using the Replacing a Drive SBB section of this chapter. Drive SBB Fault Light is Flashing Drive failed and is spinning down.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Table 8–4 Troubleshooting Techniques (continued) Symptom Possible Cause(s) Action(s) to Take Random fault lights or all fault lights light by drives appear to be working. Shelf supports StorageWorks Fault Management signals, but Fault Management is not enabled. Enable StorageWorks Fault Management signals, see Section 6.2.2 of this guide.
Chapter 8. Troubleshooting and Service Information Table 8–4 Troubleshooting Techniques (continued) Symptom Possible Cause(s) Action(s) to Take Drive has a WOL Status (Cont) Shelf failure occurred resulting in the need for multiple rebuild operations to be initiated. (The controller can only rebuild one disk at a time. The remaining failed disks are left with a WOL status.) • After the rebuild completes, fail the drive in WOL state using the on-line utilities.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Table 8–4 Troubleshooting Techniques (continued) Symptom Automatic Rebuild Does Not Start Possible Cause(s) • Automatic rebuild feature is not supported for one of the following reasons: • A StorageWorks pedestal is not being used. • Fault Management is disabled.
Chapter 8. Troubleshooting and Service Information Table 8–4 Troubleshooting Techniques (continued) Symptom Possible Cause(s) Action(s) to Take Rebuild Attempt Unsuccessful You attempted to rebuild a drive in a nonredundant configuration (RAID 0 or JBOD) or multiple failures have occurred in a redundant RAID level configuration. Restore your data from backup copies of the disks. Rebuild Completes with Error Error during rebuild. Check drive logs.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Table 8–4 Troubleshooting Techniques (continued) Symptom Rebuild Completes 100%, but Drive Status Remains WOL Power Supply SBB Shelf Status and Power Supply Status LEDs are both Off Possible Cause(s) Action(s) to Take Errors occurred on a drive during a rebuild. The drive is in a WOL state. Check the drive error logs for information. Manually set the drive state back to optimal using the Standalone utilities.
Chapter 8. Troubleshooting and Service Information 8.3 Error Messages and Recovery This section lists error messages that can appear and provides suggestions for the action to take to resolve them. Table 8–5 Error Messages Diagnostic Messages Error/Problem Probable Cause Action(s) to Take SWXCR fatal error memory test failed! • DRAM SIMMs are • Remove controller and reinsert not properly inserted. • RAID Controller is the DRAM SIMMs • Replace with new RAID controller defective.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Table 8–5 Error Messages (continued) BIOS Messages Error/Problem Probable Cause Action(s) to Take Cannot find SWXCR in any slot: no drives installed • RAID controller not • Remove and reseat the controller. • • • • SWXCR not responding - no drives installed 8–14 properly seated in EISA slot. RAID BIOS is not enabled on the board in the lower EISA slot. BIOS on more than one RAID controller is enabled.
Chapter 8. Troubleshooting and Service Information Figure 8–5 Error Messages (continued) Error/Problem Probable Cause Action(s) to Take No Logical drives found: None installed • Logical RAID • Check configuration. drives cannot be found. • A logical drive is not configured. • Configuration has 1. 2. 3. 4. Shut off power to the system. Shut off power to the drives. Check for loose cabling. Check that the cables are connected to the correct channels. 5. Turn on power to the drives. 6.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 8–5 Error Messages (continued) Error/Problem Installation Abort Probable Cause • Configuration • • • • change has occurred from last controller saved configuration. No power to StorageWorks pedestal or shelves. Drive failure on power-up. Incorrect cabling. Cable is defective.
Chapter 8. Troubleshooting and Service Information Figure 8–5 Error Messages (continued) Error/Problem Probable Cause Installation Abort (continued) Action(s) to Take You can choose to ignore the configuration error and start a new configuration. This is done by overriding the display process by entering the following: SWXCRMGR -o You have the option of quitting from the utility or saving the new configuration. CAUTION: If you save this configuration you will lose your data.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 8–5 Error Messages (continued) Error/Problem Probable Cause Action(s) to Take Warning: x system drive is degraded Drive failed in a redundant RAID Logical Drive. • Run the utilities to check the drive status. • Replace the appropriate failed drive. Warning: x system drive is dead Drive failed in a nonredundant RAID Logical Drive (0 or JBOD).
Chapter 8. Troubleshooting and Service Information Figure 8–5 Error Messages (continued) Error/Problem Probable Cause Action(s) to Take SWXCR RAM : 4 Mbytes Drives were removed and replaced in the wrong slot. • Use the message to identify the drives that have been misplaced. Device identified for Chn 0, Tgt 1 found at Chn 0, Tgt 2 • Power off your system and StorageWorks pedestal or shelves. • Correct the problem.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 8.4 Removal and Replacement This section describes the following: • Replacing a drive SBB • Replacing a power supply SBB • Replacing a blower • Replace an RAID controller 8.4.1 Replacing a Drive SBB CAUTION Once a device has been configured by the RAID controller, moving the device to another bus or changing the device address can cause problems or loss of data.
Chapter 8. Troubleshooting and Service Information 8.4.2 Replacing a Power Supply SBB A power supply must be replaced when the LEDs indicate a fault condition (as indicated in Tables 8-1, 8-2, and 8-3). Replacing a Primary Pedestal (Nonredundant) Power Supply Use the following procedure to replace a pedestal primary power supply: 1. 2. Shut down the host computer/server. Power down the pedestal by setting the power switch on the ac distribution unit to off.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 8–3 Removing a Storage Device 8–22 EK–SWRA2–IG.
Chapter 8. Troubleshooting and Service Information 8.4.3 Replacing a Redundant Power Supply CAUTION To support the warm-swap option, ensure that you replace the power supply SBB with a BA35X-HA Rev. L01 or later. The warm-swapping method of replacing a power supply can be used when there are two power supplies. This method allows you to remove the defective power supply while the other power supply continues to supply dc power to the pedestal.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 8.4.4 Replacing a Blower WARNING Due to hazardous high-current energy levels present in the backplane area, use extreme caution while swapping blowers. Keep all metal objects, including rings and jewelry, out of the blower/backplane cavity. CAUTION To prevent an overheating condition, the replacement blower should be readily available to immediately replace the faulty blower.
Chapter 8. Troubleshooting and Service Information 7. Align the replacement blower connector and insert the module straight in, making sure that both locking tabs are firmly seated in the pedestal. 8. Replace the safety screw in the corner of the blower. 9. Verify that the pedestal and all SBBs are operating properly (refer to pedestal status, Tables 8-1 and 8-2). 10. Replace the rear bezel and ensure the bezel locking tabs snap into place.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 8.4.5 Replacing the RAID Controller The following procedure describes replacing a defective RAID controller. Use this procedure in the event that the ECU cannot find the controller or you suspect a controller problem. The following procedure describes replacing the RAID controller. 1. Turn off the system. 2. Turn off the storage pedestal(s). 3.
Chapter 8. Troubleshooting and Service Information 8.4.6 Swapping EEPROM between Controllers The following procedure describes removing the EEPROM from a defective RAID controller and inserting it into a new RAID controller. This procedure is used in the event that the existing configuration cannot be saved to a diskette. CAUTIONS To avoid static damage, follow adequate antistatic procedures when handling the RAID controller.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 8–5 Locating EEPROM U33 on 1-Channel or 3-Channel Controller 10. Power on the system. The system displays the following message: Mismatch between NVRAM and flash EEPROM configuration. Spinning up drives... 11. Invoke the utilities as described in Chapter 5. The utilities display the following message: The NVRAM and flash EEPROM configurations do not match.
Chapter 8. Troubleshooting and Service Information 14. Press S to save the displayed configuration and Esc to quit. 15. Press the reset button on your system or power the system off and then turn it back on to reboot. 16. Invoke the utilities as described in Chapter 5. Make sure that the system configuration matches the previous configuration. 17. Use the View/Update option on the main menu to verify the status of your drives. 18. Rebuild any failed drives. 19.
9 Upgrading This chapter describes the procedures required for updating EISA or PCI configuration information on computer systems into which you install an EISA or PCI RAID controller. The procedures require you to run the EISA or PCI configuration (or system configuration) utility. 9.1 Introduction This chapter describes how to upgrade the firmware for your EISA, or PCI controller, and also how to update the BIOS for an intel-based system containing an EISA controller.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility NOTE Omit the next step if you have a PCI controller, or an EISA controller with firmware later than V1.99. • For EISA controllers with V1.99 firmware, go to Section 9.4.2 and set the controller parameters before upgrading your firmware, then continue with Section 9.2. 9.1.1 Spanning The new version of the utilities does not support the creation of spanned logical drives.
Chapter 9. Upgrading 9.2.1 Updating the Firmware on an Intel System To update your firmware on an Intel system, follow these steps: 1. With the system running, insert the latest RAID Array 200 Standalone Configuration Utility diskette for Intel Systems into your floppy drive. 2. Enter either of the following commands depending on whether you have single or multiple RAID controllers. For a single RAID controller, type: A:\SWXCR> SWXCRFW xxxx.xxx where xxxx.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility ********************************************************* ******* SWXCR Controller supporting 7 targets per channel found at slot 3 ********************************************************** ****** Hit any key to proceed. . . . ********************************************************** ****** Current firmware version = 2.15 ********************************************************** ****** Reading file SWXCRFWA.
Chapter 9. Upgrading ********************************************************** ****** PLEASE CYCLE SYSTEM POWER . . . . 3. Start the standalone utility, view the firmware version displayed on the main menu to verify the update. Then: • For a PCI controller, exit the utility, and remove the standalone utility diskette from the floppy drive. This completes the firmware update for PCI controllers, return to Section 6.3 to set controller parameters. • For an EISA controller no greater than version 1.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 9.2.2 Updating the Firmware on an AXP System To update your firmware on an AXP-based system, follow these steps: 1. Consult your AXP system documentation to invoke the boot menu shown below. ARC Multiboot DEC Version 2.07 Copyright © 1993 Microsoft Corporation Copyright © 1993 Digital Equipment Corporation Boot Menu Boot Windows NT Boot an alternate operating system Run a program Supplementary menu ...
Chapter 9. Upgrading The system displays messages similar to the following: ********************************************************* ******* SWXCR Firmware Download Utility (V3.02, Nov 29, 1994) ********************************************************* ******* This utility is used to upgrade the firmware on the SWXCR controller.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility ********************************************************** ****** Hit any key to proceed. . . . ********************************************************** ****** Programming (This could take up to 1 minute.). . . . first SWXCR controller successfully programmed. ********************************************************** ****** Hit any key to proceed. . . .
Chapter 9. Upgrading 9.3 Updating ECU File If your EISA controller is version 1.99 or earlier, you need to run the EISA Configuration Utility (ECU) to update the configuration information stored on nonvolatile memory in your system whenever you add or remove EISA controllers. The system BIOS uses the contents of the EISA nonvolatile memory during boot to initialize EISA controllers installed in your computer. You need to do the following to update EISA information: • Start the ECU.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 1. Boot from your system ECU configuration diskette, for Intel-based systems. For AXP-based systems running DEC OSF/1 or OpenVMS for AXP systems, boot to console prompt and type: runecu. For AXP-based systems running Microsoft Windows NT for AXP systems choose Run ECU From Floppy from the ARC menu. 2. Select the function that configures your system and press the Enter key. 3.
Chapter 9. Upgrading Figure 9–2 ECU Details for a 1-Channel Controller Slot 5 – Digital SWXCR–EA EISA RAID Controller (1-channel) Disk Spin-up 2 disks every 6 seconds – Default Channel 0 tag-queuing (SCSI-2) Enable tag-queuing – Default Channel 0 transfer rate (Max) Synchronous, 10 MB/s (fast) – Default BIOS (16K) Base Address Disable BIOS Interrupt Interrupt 11 (edge) Default Edit=ENTER 5.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 9–3 The ECU Main Menu EISA Configuration Utility Steps in configuring your computer STEP 1: information ü STEP 2: Add or remove boards STEP 3: View or edit details STEP 4: Examine required details STEP 5: Save and exit Select=ENTER 9–12 Important EISA configuration EK–SWRA2–IG.
Chapter 9. Upgrading Figure 9–4 The Add or Remove Board Screen Step 2: Add or remove boards Help=F1 Listed are the boards and options detected in your computer. ♦ To add boards or options which could not be detected, or which you plan to install, press Insert key. ♦ To move the highlighted board to another slot, press the F7 key. ♦ To remove the highlighted board from the configuration, press the Del key. ♦ When you have completed this step, press the F10 key.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 9–5 The Add Board Confirmation Screen Step 2: Add or remove boards Remove confirmation Board Name:Digital SWXCR-EA (1-ch) EISA RAID Cntlr (Generic) Ok=ENTER 3. 9–14 Press the Enter key and the Add or remove boards screen appears, similar to the screen shown in Figure 9–6. The controller you removed no longer displays on this screen. EK–SWRA2–IG.
Chapter 9. Upgrading Figure 9–6 The Add or Remove Board Screen Step 2: Add or remove boards Help=F1 Listed are the boards and options detected in your computer. ♦ To add boards or options which could not be detected, or which you plan to install, press Insert key. ♦ To move the highlighted board to another slot, press the F7 key. ♦ To remove the highlighted board from the configuration, press the Del key. When you have completed this step, press the F10 key.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 9.3.3 Adding an Updated Board to the ECU To add an updated board to the ECU, follow these steps: 1. Use the up and down arrow keys to select a slot in which to install the controller. • To install an SWXCR-EA 1-channel controller, you need one empty EISA slot. • 2. To install an SWXCR-EB 3-channel controller, you need two empty EISA slots in close proximity, for cabling purposes, during the hardware installation.
Chapter 9. Upgrading 3. Remove the ECU diskette and insert the RAID Array 200 Standalone Configuration Utility diskette for your operating system (this diskette contains the .CFG files) and press the Enter key. The ECU displays an Add Configuration (CFG) file screen similar to Figure 9–8. NOTE The .CFG file on the RAID Array 200 Standalone Configuration Utility diskette is the most current .CFG file. Use this instead of any versions that may be on your system ECU diskette.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 4. • • • • Select the appropriate .CFG file for your RAID controller as follows and press the Enter key: Select !MLX0077.CFG for a 1-channel controller in an Intel-based computer running any operating system, or in Alpha running Microsoft Windows NT for AXP systems Select !MLX0075.
Chapter 9. Upgrading Figure 9–10 The Add Slot Screen Add Select an acceptable slot for the board and press ENTER. Slot 1 (Empty) Slot 2 (Empty) Slot 3 (Empty) Slot 4 (Empty) Slot 5 (Empty) Slot 6 (Empty) à The ( ) indicates an acceptable slot for the board >Ok=Enter< 6. To install the controller, select the slot it was previously installed in. (This slot was noted in step 2 of Section 9.3.2.). Press the Enter key. Figure 9–11 shows Slot 6 selected for the installation.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 9–11 Add Slot Step 2 Step 2: Add or remove boards Help=F1 Listed are the boards and options detected in your computer. ♦ To add boards or options which could not be detected, or which you plan to install, press Insert key. the ♦ To move the highlighted board to another slot, press the F7 key. ♦ To remove the highlighted board from the configuration, press the Del key.
Chapter 9. Upgrading 7. Press the F10 key. The Steps in configuring your computer menu appears similar to Figure 9–12. Figure 9–12 The ECU Main Menu EISA Configuration Utility Steps in configuring your computer STEP 1: ü Important EISA configuration information STEP 2: Add or remove boards STEP 3: View or edit details STEP 4: Examine required details STEP 5: Save and exit Select=ENTER EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 9.3.4 Setting BIOS Address and Interrupt The .CFG file that you copied during the Add or remove boards procedure sets the BIOS (for Intel-based systems only; Alpha systems do not use BIOS) and Interrupt parameters with default values. You may need to change these settings.
Chapter 9. Upgrading 3. 4. 5. Set the BIOS address to the value previously recorded in step 5 of Section 9.3.1. Set the interrupt level to the value previously recorded in step 5 of Section 9.3.1. Press the F10 key when you finish setting these parameters. The Steps in configuring your computer appears similar to Figure 9–14.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure 9–15 The Save and Exit Screen Step 5: Save and Exit Help=F1 In order to complete the configuration process, you must save your configuration. In this step, you must select whether to save your configuration or discard your changes before exiting this program.
Chapter 9. Upgrading Figure 9–16 The Reboot After Changing the ECU Screen EISA Configuration Utility Help=F1 Your configuration file has been saved, and if possible a backup SYSTEM.SCI file has been made on the current drive. To complete your configuration, you must do one of the following: If you need to install boards or change switches and jumpers on boards already installed, turn off your computer and do so.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 9.4.1.1 Invoking the Standalone Utility on Intel Systems To invoke the standalone utility on an Intel (486 and up) system, follow these steps: 1. Insert the RAID Array 200 Standalone Configuration Utility for Intel Systems diskette in your floppy drive. 2. Start or reboot your computer, leaving the diskette in the floppy drive. Your computer boots from the RAID Array 200 Standalone Configuration Utility V3.
Chapter 9. Upgrading 9.4.1.2 Invoking the Standalone Utility on AXP Systems To invoke the Standalone Utility on AXP systems, follow these steps: 1. Invoke the ARC console menu shown in Figure 9–18. Consult your AXP system documentation to invoke the ARC console. Figure 9–18 The ARC Console for An AXP System ARC Multiboot DEC Version 2.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 9.4.2 Setting Controller Parameters Previously, to set parameters, such as for EISA controllers you needed to use the EISA Configuration Utility (ECU). Presently, you use the Standalone Configuration Utility to set these parameters for both EISA and PCI controllers.
Chapter 9. Upgrading 1. Use the arrow keys to highlight the Data Parameters option on the Edit/View Parameters menu and press the Enter key. The Physical Parameters screen appears, similar to the one shown in Figure 9–20, with the Default rebuild rate option highlighted. Figure 9–20 The Physical Parameters Screen 2. Press the Enter key and a box appears at the bottom right corner of the screen in which you can type a rebuild rate from 0–50.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 3. Use the arrow keys to highlight the Controller read ahead option. This option is enabled by default. Leave Controller Read Ahead enabled for a subsystem processing primarily sequential, long file transfers. Disable Controller read ahead for a subsystem processing primarily small, or random transfers. Press the Enter key to disable this option.
Chapter 9. Upgrading 2. Enter the channel number of the attached controller and press the Enter key. The SCSI Transfer Parameters of Channel x screen appears similar to the one shown in Figure 9–22. The Data transfer rate option appears highlighted. Figure 9–22 The SCSI Transfer Parameters for the Specified Channel 3. 4. 5. 6. Press the Enter key to scroll through the Data transfer rate options. Select the original value previously noted. Use the arrow keys to highlight the Command tagging option.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 9.4.2.3 Setting the Startup Parameters To set the Startup Parameters, follow these steps. 1. Use the arrow keys to highlight the Startup Parameters option on the Edit/View Parameters menu and press the Enter key. The Start up Parameters menu appears, with the Spin up option highlighted shown in Figure 9–23. Figure 9–23 The Start Up Parameters Menu 2.
Chapter 9. Upgrading 9.4.3 Exiting the Utility Press the Esc key twice from the main menu to exit the standalone utility. The utility prompts you to confirm that you want to exit. Select Yes and press the Enter key to exit. Return to Section 9.2 to upgrade your firmware, or to Section 6.3 to configure your array. 9.5 Updating BIOS for an Intel-Based System Containing an EISA Controller This section describes how to update the BIOS for your EISA controller in an Intel-based system.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility To update multiple controllers with a single version of the BIOS, type: A:\SWXCR>SWXCRBIO -v xxx where xxx is the version of the BIOS, 215 for example To update multiple controllers with multiple versions of the BIOS, type: A:\SWXCR>SWXCRBIO xxxx.xxx xxxx.xxx where xxxx.xxx xxxx.xxx are the BIOS filenames and versions of the BIOS that you want to load, SWXCRBIO.xxx SWXCRBIO.xxx, for example.
A Installing Controller Options This appendix contains procedures for installing cache memory and battery backup options on the 1 and 3-channel PCI RAID controllers. The same procedure applies for installing cache memory on the 1 and 3-channel EISA RAID controllers. (Battery backup is not applicable to EISA RAID controllers.) A.1 Installing Cache Memory This procedure applies to 1 and 3-channel PCI and EISA RAID controllers. A PCI RAID controller is shown in the illustrations.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility Figure A–1 Installing Cache Memory Module on PCI RAID Controller Figure A–2 Cache Memory Module Installed on PCI RAID Controller A–2 EK–SWRA2–IG.
Appendix A. Installing Controller Options A.2 Installing Battery Backup Board This procedure applies to 1 and 3-channel PCI RAID controllers, only. CAUTION To avoid static damage, wear a grounded wrist strap while working on the RAID controller board. 1. Position PCI RAID controller on workbench as shown in Figure A–3 and locate battery backup board connector cover. Figure A–3 Location of Battery Backup Board Connector Cover EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 2. Remove battery backup board connector cover from battery backup board connector as shown in Figure A–4. Figure A–4 Removing Battery Backup Board Connector Cover A–4 EK–SWRA2–IG.
Appendix A. Installing Controller Options 3. Install battery backup board on PCI RAID controller so battery backup connectors mate, and white plastic locater stud on battery backup board goes into locater hole on controller as shown in Figure A–5. Figure A–5 Installing Battery Backup Board on PCI RAID Controller EK–SWRA2–IG.
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility 4. Figure A–6 shows battery backup board installed on PCI RAID controller. Figure A–6 Battery Backup Board Installed on PCI RAID Controller A–6 EK–SWRA2–IG.
Index A ARC console, 7–6, 9–6 automatic configuration selecting this option, 6–21 initializing a logical RAID drive, 6–23 saving the RAID configuration to diskette, 6–25 B backing up your system, 2–6 bad block table, 7–56 battery backup 6–6, 6–12, A–3 BIOS address, 3–11 message, 6–46 updating on an Intel-based system containing an EISA controller, 9–33 C cables, 2–6 length, 4–6, 4–7 rearranging, 7–36 cabling 1-channel RAID controller, SCSI, 2–6, 4–6, 4–7, 4–8, 4–10 3-channel RAID controller, internal, EIS
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility C D configuring, 6–1, 6–15 automatically, 6–21 interactively, 6–27 for data availability, 6–17 for drive connectivity and performance, 6–19 understanding the methods, 6–20 data recovery, 6–15 configuring interactively, 6–27 creating a drive group, 6–28 defining a drive group, 6–30 arranging a drive group, 6–35 creating a logical RAID drive, 6–37 choosing a caching policy, 6–42 defining a hot spare drive, 6–43 savin
Index use, 6–16 E ECU, see EISA configuration utility edge, 3–12 EEPROM swapping between controllers, 8–27 EISA updating EISA information, 3–1 slots, 3–3, 3–4, 3–8 EISA configuration utility (ECU) adding a new board, 3–3 running, 3–2 setting BIOS address and interrupt, 3–11 starting, 3–2 error messages, 8–13 F failed, 7–11 fault management, 6–6, 6–12 FLD, 7–11 FMT, 7–11 format, 7–11 firmware determining version, 6–6 updating on an Intel-system, 9–3 updating on an AXP system, 9–6 H hardware user-supplied,
StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility L R logical RAID Drive creating, 6–37, 7–27 choosing a caching policy, 6–42 defined, 1–8 defining a hot spare drive, 6–43 deleting, 7–42 initializing, 6–47 redundant, 6–39 saving the logical RAID drive configuration, 6–45 viewing, 7–13 RAID defined, 1–1 hardware, 1–2 software, 1–2 N Novell NetWare, 2–4 O online management utility for your operating system, 1–12, 6–26 RAID array 200 standalone configuration utilit
Index S saving the RAID configuration to diskette, 6–25, 6–51, 7–39 system turning-on and -off, 6–2, 7–2 SCSI bus termination jumpers, 5–2 T SCSI channel, 6–32, 7–21 SCO UNIX, 2–4 shelf_OK jumper 4–4, 5–8 setting parameters and options, 6–6, 6–7 terminator, 4–6, 5–10 troubleshooting a failed rebuild, 7–56 your system, 8–5 spin up, 6–11 turning-on and -off your system and storage enclosures, 6–2, 7–2 software user-supplied, 2–4 U standalone configuration utility, 1–12 exiting, 9–33, 6–6, 7–7 invok
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