HP NetRAID Series User Guide HP Part Number 5969-5983 February 2000
Notice The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
Contents Introduction ..................................................................................................... 1 1 Overview of HP NetRAID Utilities................................................................ 3 HP NetRAID Assistant ................................................................................... 4 HP NetRAID Assistant Menus.................................................................... 5 HP NetRAID Config ...............................................................
Contents Adding a Hot Spare ................................................................................. 39 Adding a New Logical Drive..................................................................... 39 Changing Logical Drives Currently in Use ................................................ 40 Reclaiming a Hot Spare........................................................................... 43 Changing Logical Drive Parameters.........................................................
Contents G Formatting Physical Drives...................................................................... 72 Media Errors............................................................................................ 72 Formatting Options .................................................................................. 73 4 HP NetRAID Express Tools ....................................................................... 75 Overview ............................................................................
Contents Planning for Online Capacity Expansion under NetWare 4.2 ...................110 Preparation Steps for NetWare 4.2 .........................................................110 Expanding Capacity Online under NetWare 4.2 ......................................114 Expanding Capacity under NetWare 4.2 with Virtual Sizing Disabled.......116 Capacity Expansion under NetWare 5 ........................................................116 About Online Capacity Expansion under NetWare 5 ......................
Introduction The HP NetRAID-1Si and HP NetRAID-3Si adapters and the integrated HP NetRAID controllers built into certain HP NetServers let you link multiple hard disk drives together to write data across them as if they were one large drive You configure your linked drives in a RAID (redundant array of independent disks) subsystem. Initial installation and configuration of HP NetRAID Series adapters is described in the HP NetRAID Series Installation and Configuration Guide.
1 Overview of HP NetRAID Utilities Three HP NetRAID utilities can configure and manage HP NetRAID Series subsystems. Integrated HP NetRAID controllers and HP NetRAID Series adapters (HP NetRAID-1Si and HP NetRAID-3Si) use the same utilities. However, all utilities are not available to all network operating systems. • HP NetRAID Assistant is used only with Microsoft Windows NT and Windows 2000.
Chapter 1 Overview of HP NetRAID Utilities HP NetRAID Assistant HP NetRAID Assistant is an object-oriented GUI management utility. It runs under Microsoft Windows NT and Windows 2000, and it allows you to reconfigure and manage your HP NetRAID subsystem and to monitor its status. For complete instructions on using this utility, see Chapter 2, "HP NetRAID Assistant," in this guide.
Chapter 1 Overview of HP NetRAID Utilities HP NetRAID Assistant Menus Main Menu Configuration Adapter Physical Drive Logical Drive Progress Help Configuration Menu Wizard Display Print Save Load Clear Configuration Exit Adapter Menu Update Firmware Flush Cache Performance Monitor On/Off Properties Rebuild Rate Rescan View Log Alarm Control Alarm Control Menu Disable/Enable Alarm Silence Alarm Physical Drive Menu Change Status Menu Rebuild Format Update Drive Firmware Change Status Properties Make O
Chapter 1 Overview of HP NetRAID Utilities HP NetRAID Config HP NetRAID Config is a character-based, non-GUI utility that runs under all supported operating systems other than Microsoft Windows NT and Windows 2000. HP NetRAID Config allows you to reconfigure and manage your HP NetRAID subsystem and to monitor its status.
Chapter 1 Overview of HP NetRAID Utilities HP NetRAID Config Menus Management Menu Configure Initialize Objects Format Rebuild Check Consistency Advanced Menu Select Adapter Configure Menu Automatic Configuration Easy Configuration New Configuration View/Add/Delete Configuration Clear Configuration Objects Menu Adapter Logical Drive Physical Drive SCSI Channel Battery Backup Adapter Menu Clear Configuration View Adapter Performance Power Fail Safeguard Disk Spin-up Timings View/Update Parameters Adapte
Chapter 1 Overview of HP NetRAID Utilities HP NetRAID Express Tools HP NetRAID Express Tools is available to all network operating systems because this utility is contained in the firmware. HP NetRAID Express Tools contains some advanced management and diagnostic utilities that are not available with HP NetRAID Assistant or HP NetRAID Config. NOTE To access HP NetRAID Express Tools you must restart the HP NetServer. To start HP NetRAID Express Tools: 1.
Chapter 1 Overview of HP NetRAID Utilities HP NetRAID Express Tools Menus Tools Management Menu Configure Initialize Objects Format Rebuild Check Consistency Disable BIOS Change Adapters Alarm Control Adapter Menu Configure Menu Easy Configuration New Configuration View/Add/Delete Configuration Clear Configuration Objects Menu Adapter Logical Drive Physical Drive SCSI Channel Battery Backup Reset to Default Settings Power Fail Safeguard Memory Type Read Modify Write Mode Change Disk Geometry Disk Spin-
Chapter 1 Overview of HP NetRAID Utilities HP NetRAID Utility Comparison Chart The three HP NetRAID utilities (HP NetRAID Assistant, HP NetRAID Config, and HP NetRAID Express Tools) perform many of the same functions, but they are not identical. Parameters with default values and functions that are not shared by each of these utilities are listed in the Table 1-2. (Most functions common to all three utilities are not listed.) Table 1-2.
Chapter 1 Overview of HP NetRAID Utilities Memory Type HP NetRAID-1Si HP NetRAID-3Si & integrated HP NetRAID Power Fail Safeguard X EDO* Not Available Enabled* X Print Config X RAID Level X Read Modify Write Mode OFF* X X Read Policy Adaptive* X X X Rebuild Rate 50%* X X X Reset to Default Settings X Save/Load Config from File SCSI-2 Command Tagging X Enhanced Qtag Scheduling* X SCSI Termination X HP NetRAID-3Si & HP NetServer LH 3000/3000r, LH 6000/6000r & LT 6000r Terminate
Chapter 1 NOTE Overview of HP NetRAID Utilities Write-Back means that data is written to disk only when it is forced out of the cache. Write-Back is efficient because an entry may be written many times in the cache without a disk access. While this setting increases performance, data can be lost if power fails. Write-Back is NOT recommended unless one of the following is true: • The HP NetRAID adapter is an HP NetRAID-3Si, which has a Battery Backup Unit.
Chapter 1 Overview of HP NetRAID Utilities HP NetRAID Drivers and Utilities Table 1-3 lists the filenames of drivers and utilities specific to your network operating system (NOS). For information on installing drivers and configuration utilities for HP NetRAID, see the HP NetRAID Installation and Configuration Guide or the HP NetServer Integrated NetRAID Controller Configuration Guide. Table 1-3.
2 HP NetRAID Assistant Overview HP NetRAID Assistant is an object-oriented, graphical user interface (GUI) management utility that runs under Microsoft Windows NT or Windows 2000. HP NetRAID Assistant allows you to control and monitor the status of hard disk drives on the local HP NetServer or over a network with several servers. This section provides the following information: A. HP NetRAID Assistant Main Window B. HP NetRAID Assistant Menu Options C.
Chapter 2 HP NetRAID Assistant Configuration Menu Adapter Menu Physical Drive Menu Logical Drive Menu Server Selector Adapter Selector Progress Menu Help Menu Toggle Between Views Physical Drives Figure 2-1. HP NetRAID Assistant Main Window The HP NetRAID Assistant window contains the following elements: • Menu bar: The menu bar activates pull-down menus for Configuration, Adapter, Physical Drives, Logical Drives, Progress, and Help.
Chapter 2 HP NetRAID Assistant • Server Selector box: The Server Selector box shows the name of the current server. If HP NetRAID Assistant is started on a client or server over the network, you must select the server you want to access from the pull-down list. • Adapter box: The Adapter box shows the number of the current adapter. If the HP NetServer contains more than one adapter, you can change the current adapter by using the Adapter box pull-down list.
Chapter 2 HP NetRAID Assistant • Logical Devices box: The Logical Devices box shows the current adapter and its global hot spare pool. When arrays, logical drives, and hot spares have been defined, they are displayed here. Clicking on Logical View or Physical View switches between showing logical drives and physical drives. Clicking on the + sign in the yellow diamond expands the view if it is collapsed (physical or logical drives, or hot spares are hidden).
Chapter 2 HP NetRAID Assistant Configuration Menu The following Configuration menu options assist you in configuring your HP NetRAID system. • Wizard: Lets you configure the arrays, logical drives, and parameters of your system. For complete information on the Wizard, see Part C of this chapter, "Using the Wizard to Configure Arrays and Logical Drives.
Chapter 2 HP NetRAID Assistant • Exit: Select this option to quit HP NetRAID Assistant. You cannot exit if disk operations are ongoing. NOTE New configurations are not saved when exiting unless you saved them by using the Wizard. Adapter Menu The options on the HP NetRAID Assistant Adapter menu are described below. • Update Firmware: This selection is not available. • Flush Cache: Writes all data in cache to physical drives.
Chapter 2 HP NetRAID Assistant • View Log: Displays the contents of the View Log File, which records adapter activities and conditions such as battery backup charge, logical drive properties, and changes to configurations along with the date and time changes are made. • Alarm Control: Changes the onboard tone generator settings as described below. (This option is not available with the integrated HP NetRAID controller.) ◊ Enable/Disable Alarm: Enables or disables the onboard tone generator.
Chapter 2 HP NetRAID Assistant • Update Drv Firmware: This selection is not available. • Change Status: Changes the status of the physical drive: ◊ Make Online: Puts the drive online and available to the adapter. ◊ Make Offline: Puts the drive offline and unavailable to the adapter. ◊ Spin Up: Sets the method and timing for spinning up the hard disk drives. ◊ Spin Down: Sets the method and timing for spinning down the hard disk drives.
Chapter 2 HP NetRAID Assistant Logical Drive Menu The Logical Drive menu options are described below. • Initialize: Initializes one or more logical drives. To initialize one or more drives, first select the logical drive(s) to be initialized, then choose Initialize. After configuration, a logical drive must be initialized before it can be used.
Chapter 2 HP NetRAID Assistant • Change Config: Changes the parameters of a logical drive. To use this option, first select the logical drive or drives to change, then click Change Config. ◊ Cache: There are two Cache policies: ∗ Direct I/O specifies that only repeated reads to same locations are cached. ∗ Cached I/O specifies that all reads are cached.
Chapter 2 HP NetRAID Assistant • Initialize • Check Consistency • Change Policy (changes Write, Read, and Cache Policies) • Advanced Menu ◊ Change Config (changes RAID level only) ◊ Add Drive • Properties Progress Menu Using the Progress option, you can access and view the following utility monitors: • Rebuild Progress • Diagnostics Progress • Initialize Progress • Check Consistency Progress • Reconstruction Progress • Performance Monitor Help Menu The Help Menu option yields the following choices:
Chapter 2 Configuration Menu HP NetRAID Assistant Adapter Menu Physical Drive Menu Logical Drive Menu Progress Menu Server Selector Adapter Selector Help Menu Toggle Between Views Physical Drives Figure 2-3. HP NetRAID Assistant Main Window NOTE Since HP NetRAID-1Si is a single-channel adapter, the HP NetRAID Assistant Main window for HP NetRAID-1Si contains only Channel 0 information.
Chapter 2 HP NetRAID Assistant • Define your physical arrays. • Assign dedicated hot spares, if desired. • Define logical drives. • Preview configuration and save it to NVRAM (non-volatile memory). • Save the configuration to a binary file. • Print the configuration. • Configure any other adapters. • Initialize logical drives. • Exit HP NetRAID Assistant. Select the Adapter to Configure Look in the Adapter box to see if the adapter you wish to configure is displayed.
Chapter 2 HP NetRAID Assistant 3. Reset the rate as necessary by dragging the slider with the mouse. 4. Click OK. 5. If you have more than one adapter, select the next adapter, and repeat this procedure. NOTE Clearing the configuration does not affect the rebuild rate. Assign Global Hot Spares To assign any physical drives to the global hot spare pool for the adapter: 1. Click on a Ready physical drive in the Physical Devices box.
Chapter 2 HP NetRAID Assistant Figure 2-4. HP NetRAID Assistant Wizard Starting Window 3. Click one of the following configuration modes: ◊ Select Custom if you want to define the arrays and logical drives and set their parameters. ◊ Select Automatic if you want the HP NetRAID Assistant Wizard to define the arrays and logical drives and set their parameters for you automatically. When you select Automatic mode, you can toggle the Redundancy check box at the bottom of the window.
Chapter 2 HP NetRAID Assistant ∗ If an array contains two drives, and you checked Redundancy, the logical drive is assigned RAID level 1. ∗ If an array contains three to five drives, and you checked Redundancy, the logical drive is assigned RAID level 5. ∗ If an array contains only one drive, the logical drive is assigned RAID level 0. (No redundancy is possible on a logical drive containing just one physical drive.) ∗ Automatic configuration does not create hot spares. 4. Click the Next button. 5.
Chapter 2 HP NetRAID Assistant To assign physical drives to the new array: 1. Select all the Ready physical drives that you want to put into the new array. Clicking on a drive either selects or deselects it. 2. Click the Add to Array button. Physical drives show "A:new" to indicate the drive has been added to a new array, but has not been accepted yet. 3. If you want to remove a physical drive from a new array, select the drive in the new array and click the Reclaim button. 4.
Chapter 2 HP NetRAID Assistant 3. Click the Dedicated to button, and then click the down arrow to pull down a list of valid arrays. 4. Click the array to which you want to dedicate the hot spare. 5. Click OK. 6. Continue defining arrays and hot spares. To reclaim (undo) one or more hot spares: 1. Select one or more hot spares. 2. Click the Reclaim button to convert the hot spares to Ready physical drives. When you are finished defining arrays and hot spares: Click the Next button.
Chapter 2 HP NetRAID Assistant • The Logical Drive Parameters box shows the number of the logical drive being defined and has boxes to set its RAID level and size. • The Advanced button leads to more parameters, which are preset but can be changed. • The Span Arrays check box turns array spanning on or off. • The Logical Devices box depicts the arrays on the current adapter, the logical drives on each array, and the global hot spare pool for the adapter.
Chapter 2 HP NetRAID Assistant To create a logical drive that spans two or more arrays: NOTE The arrays to be spanned must have sequential array numbers and must contain the same number of physical drives. HP NetRAID Assistant will attempt to span up to four arrays. Array spanning stops when: • It has created a logical drive of the size you specify in Step 2 below. • The next sequentially numbered array has a different number of drives.
Chapter 2 HP NetRAID Assistant Preview Configuration The HP NetRAID Assistant Wizard Configuration Preview window, shown in Figure 2-7, displays the configuration proposed for the physical and logical drives. Figure 2-7. HP NetRAID Assistant Wizard Configuration Preview Window NOTE The RAID level of a logical drive that spans arrays lacks the terminal zero. Mentally add it to make RAID 1 into RAID 10, RAID 3 into RAID 30, and RAID 5 into RAID 50.
Chapter 2 HP NetRAID Assistant To display the properties of a physical drive: Double-click the physical drive in the Physical Devices box. To change a logical drive: 1. Click the Back button to back up to the previous window. 2. Delete the last logical drive defined (accepted) by clicking the Undo button. Keep clicking Undo until you have removed the logical drive you want to change. 3. Configure the logical drives again, or click Back to back up and change array definitions.
Chapter 2 HP NetRAID Assistant Save Your Configuration and Initialize In this step you will do the following: • Save the configuration to a binary file. • Print a copy of the configuration. • Initialize the logical drives. Save the Configuration to a File To save the configuration to a binary file: 1. Choose Save from the Configuration menu. The Save Configuration dialog box appears. 2. Type the file name and directories to be used to save the configuration. The file type should be *.cfg. 3.
Chapter 2 HP NetRAID Assistant 5. Launch the HP NetRAID Assistant Wizard by selecting Wizard from the Configuration menu. 6. Use the Wizard to configure the adapter’s arrays and logical drives. 7. Save the configuration and print it. Initialize Logical Drives All logical drives must be initialized. CAUTION Initializing a logical drive by using the Initialize menu selection destroys all data currently on the disk modules.
Chapter 2 HP NetRAID Assistant D Managing RAID with HP NetRAID Assistant Procedures for performing some of the most common RAID management functions are described in this section. Many of the adapter’s management functions can be performed by using the drag-and-drop feature of the HP NetRAID Assistant window. Rebuilding a Failed Physical Drive For complete information, see Chapter 5, "Reconstructing and Rebuilding Drives." Adding a Hot Spare Hot spares can be global or dedicated.
Chapter 2 HP NetRAID Assistant Changing Logical Drives Currently in Use You can make several kinds of changes to logical drives that are currently in use. You can: • Change the RAID level. • Remove a physical drive. • Add a physical drive. See Chapter 6, "Capacity Expansion," in this guide for complete instructions. All such changes to existing logical drives require reconstructing the data. Reconstruction is the process of reorganizing the data to correspond to a change in the HP NetRAID system.
Chapter 2 HP NetRAID Assistant Table 2-1.
Chapter 2 HP NetRAID Assistant Removing a Physical Drive from a Logical Drive The procedures for removing a physical drive from a logical drive vary depending on the RAID level of the logical drive. RAID Level 0 There is no data redundancy in a RAID 0 system, so you cannot remove a physical drive while the HP NetServer is available. To remove a physical drive from a RAID 0 logical drive, you must back up your data, reconfigure the logical drive, then restore the data.
Chapter 2 HP NetRAID Assistant d. Return to the main menu of HP NetRAID Assistant. 5. Configure this Ready disk by using the Configuration Wizard. Reclaiming a Hot Spare If a physical drive has been configured as a Hot Spare, you can reclaim it and convert it to the Ready state at any time. 1. Select Configure from the main menu of HP NetRAID Assistant. 2. Select Wizard. 3. Select (highlight) the hot spare in the Logical Devices box. 4. Click the Reclaim box. 5.
Chapter 2 HP NetRAID Assistant • From the main menu, you can choose Physical Drv, then Change Status. You can change the drive status by using the Make Offline or Make Online selection. ◊ When you select Make Offline, the physical drive is changed to the Fail state. An audible warning sounds if the drive is controlled by an HP NetRAID Series adapter. (For an integrated HP NetRAID controller, there is no audible warning.) The logical drive state also changes.
Chapter 2 HP NetRAID Assistant 2. HP NetRAID Registration Server: Start it before the others by double-clicking on its Windows icon or by loading NetWare module reg_serv.nlm. 3. HP NetRAID Access Service: Start it by double-clicking on its Windows icon or by loading NetWare module raidserv.nlm. NOTE To change the password for a server using Windows NT or Windows 2000, run setpass.exe under \netraid\dll\.
Chapter 2 HP NetRAID Assistant password. Full Access mode activates features that let you change the HP NetRAID configuration and the states of physical and logical drives. For example, in Full Access mode, you can initiate recovery from a disk failure, or make a new hot spare. • View Only mode does not require a password, and does not permit users to change the configuration. All menu selections that would change the configuration are inactive.
Chapter 2 HP NetRAID Assistant Exit HP NetRAID Assistant Exit HP NetRAID Assistant by choosing Exit from the Configuration menu, or by clicking the Exit button in the toolbar, or by double-clicking the upper-left corner of the main window. F Windows NT Monitor Service for HP NetRAID NOTE HP NetRAID NT monitor service for HP NetRAID supports Windows NT and Windows 2000.
Chapter 2 HP NetRAID Assistant The options are defined as follows: -cons Perform consistency check. -w# Scheduled intervals. Valid options are: -w0 = daily -w1 = every week -w2 = biweekly -w4 = every month -w12 = every three months -w24 = every six months -d# Day of the week. Valid options are -d1( Sunday) through -d7 (Saturday) -h# Hour in 24-hour format. Valid options are -d0 (12:00 a.m.) through -d23 (11:00 p.m.) -date Start date in mm/dd/yyyy format.
3 HP NetRAID Config Overview HP NetRAID Config is a character-based, non-GUI utility that configures and monitors RAID systems. HP NetRAID Config runs under the following operating systems: • Novell NetWare • IBM OS/2 • SCO OpenServer • SCO UnixWare NOTE The instructions in this section on using HP NetRAID Config refer specifically to the Novell NetWare network operating system.
Chapter 3 HP NetRAID Config A Starting and Exiting HP NetRAID Config You do not need to restart your HP NetServer to use HP NetRAID Config.
Chapter 3 HP NetRAID Config • The Format option lets your format physical drives. • The Rebuild option lets you rebuild a logical drive in which one physical drive has failed. • The Check Consistency option lets you verify the data in your logical drives. • The Advanced menu lets you reconstruct a logical drive. Configure Menu Choose the Configure option to select a method for configuring arrays and logical drives. Refer to "Configuring Arrays and Logical Drives" in this chapter for instructions.
Chapter 3 HP NetRAID Config Adapter Choose Adapter from the Objects menu to select an integrated HP NetRAID controller or HP NetRAID Series adapter (if your HP NetServer has more than one) and to modify parameters. • Clear Configuration: Erases the current configuration from the adapter’s nonvolatile memory. • View Adapter Performance: Displays the selected adapter's read/write performance. • Power Fail Safeguard: Lets you enable or disable the Power Fail Safeguard feature.
Chapter 3 HP NetRAID Config Logical Drive Choose this option to perform the listed actions. You must first select the logical drive on which you want to perform these options. • Initialize: After configuration, a logical drive must be initialized before it can be used. This option initializes the logical drives by writing zeros to the data fields and generating corresponding parity fields on drives with RAID levels 3, 5, 30, or 50.
Chapter 3 HP NetRAID Config Physical Drive Choose this option to select a physical device and to perform the operations listed below. When you choose this option, a selection menu is displayed showing the physical drives in the HP NetServer. Move the cursor to the desired disk drive and press Enter. The following menu options become available: • Rebuild: Choose this option to rebuild the selected disk drive. • Format: Choose this option to low-level format the selected hard disk drive.
Chapter 3 HP NetRAID Config eight bits. This setting is required if the selected SCSI channel is terminated with 8-bit devices at both ends. • Terminate Wide Channel: Enables Wide termination for the selected channel. This is required if the HP NetRAID Series adapter is at one end of the SCSI bus for the selected channel. The default setting is Wide Termination. • Disable Termination: Disables termination on the adapter for the selected channel.
Chapter 3 HP NetRAID Config Format Option Choose the Format option to low-level format one or more physical drives. Since most SCSI disk drives, including all HP drives, are low-level formatted at the factory, this step is usually not necessary. You typically must format a disk only if: • The disk drive was not low-level formatted at the factory. • There is an excessive number of media errors detected on the disk drive.
Chapter 3 HP NetRAID Config 4. When the consistency check is finished, press any key to clear the progress display and press Esc to return to the Management menu. NOTE Check Consistency might fail if the firmware could not complete parity and data writes due to a power failure or a system hang, or if the logical drive degraded or failed when a physical drives went offline. Advanced Menu Reconstruct Logical Drive Use this option if you want to add a physical drive or change a RAID level.
Chapter 3 HP NetRAID Config configuration information is not disturbed. For instructions on using this selection, see "Using Easy Configuration" in this chapter. • New Configuration also lets you create arrays and hot spares, but this selection lets you configure spanned arrays. If you select New Configuration, the existing configuration information on the selected adapter is destroyed when the new configuration is saved.
Chapter 3 HP NetRAID Config Logical Drive Settings Auto Configuration uses the following defaults to configure your drives: Table 3-1. HP NetRAID Config Automatic Settings for Logical Drives Parameter Setting Stripe size 64 KB Write Policy Write-Back in HP NetRAID-3Si and integrated HP NetRAID in HP NetServer LH 3000/3000r, LH 6000/6000r, and LT 6000r (See note below table.
Chapter 3 HP NetRAID Config You can change the write policy, read policy, and cache policy after the configuration is complete. Choose Objects, then Logical Drive, then Properties to change this information. User Actions Perform the following steps when using Auto Configuration. 1. Choose Configure from the HP NetRAID Config Management menu. 2. Designate hot spares if desired by using the Easy Configuration selection. (Auto Configuration does not create any hot spares.) 3.
Chapter 3 HP NetRAID Config 5. Press the Spacebar to add the highlighted physical drive to the current array. The indicator for the selected drive changes from Ready to Onlin A [array number]-[drive number]. For example, Onlin A2-3 refers to array 2 drive 3. Add physical drives to the current array as needed. Try to use drives of the same capacity in the same array.
Chapter 3 HP NetRAID Config • Cache policy: This parameter identifies the read cache mode during data transfers involving the current logical drive. (For definitions of the Write policy, Read policy, Cache policy, and their options, see the "Glossary" in this guide.) Press Esc to exit the Advanced menu. 10. When you are finished defining the current logical drive, highlight Accept and press Enter. The array selection window appears if there are any unconfigured disk drives left. 11.
Chapter 3 HP NetRAID Config 3. Press the arrow keys to highlight specific physical drives. 4. Press F4 to configure the highlighted drive as a hot spare. 5. Press the Spacebar to add the highlighted physical drive to the current array. The status of the selected drive changes from Ready to Onlin A [array number]-[drive number]. For example, Onlin A2-3 means array 2, disk drive 3. Add physical drives to the current array as needed. Try to use drives of the same capacity in the same array.
Chapter 3 HP NetRAID Config NOTE The arrays to be spanned must have sequential array numbers and must contain the same number of physical drives. If you select CanSpan, HP NetRAID Assistant will attempt to span up to four arrays. Array spanning stops when: • It has created a logical drive of the size you specify in Step 10 below. • The next sequentially numbered array has a different number of drives. Spanned arrays must contain the same number of drives in each array. 10.
Chapter 3 HP NetRAID Config 12. When you are finished defining the current logical drive, highlight Accept and press Enter. If there is space remaining in the arrays, the next logical drive to be configured appears. Repeat Steps 8 to 11 to configure another logical drive. If the array space has been used up, a list of the existing logical drives appears. 13. Save your configuration by responding to the save prompt. 14. Initialize the logical drives you have just configured.
Chapter 3 HP NetRAID Config in an array, all the drives in the array are treated as though they have the capacity of the smallest drive. The number of physical drives in an array determines the RAID levels that can be implemented with the array. 6. Press Enter when you are finished creating the current array. To continue defining arrays, repeat Steps 3 through 5. To configure your logical drives, go to Step 7. 7. Press F10 to configure logical drives. The logical drive configuration window appears.
Chapter 3 HP NetRAID Config • If you want to create more than one logical drive in an array, set a size of less than the actual capacity. • If you want to span only two or three arrays, rather than the four-array maximum, set a size that reflects the number of arrays you want to span. 11. Choose the Advanced menu to set the following options. • Stripe size: This parameter specifies the size of the segment written to each disk in a logical drive.
Chapter 3 HP NetRAID Config • Configuration Menu. You can create a hot spare by using the Easy, New, or View/Add Configuration mode. When you choose any of these configuration options in the Configure menu, a window listing all physical devices connected to the current adapter is displayed. Press the arrow keys to highlight a disk drive that has a Ready indicator and press F4 to designate it as a hot spare. The indicator changes to HotSp. or • Objects Menu.
Chapter 3 HP NetRAID Config 3. When you have selected the logical drives you want to initialize, press F10 and choose Yes at the confirmation prompt. The progress of the initialization for each drive is shown in bar graph format. 4. When initialization is complete, press any key to continue. Press Esc to return to the Management menu. Individual Initialization To initialize one logical drive, perform the following steps: 1. Choose Objects from the HP NetRAID Config Management menu. 2.
Chapter 3 HP NetRAID Config Changing the RAID Level of a Logical Drive To make RAID level changes, refer to the valid RAID level changes listed in Table 3-1 before altering a logical drive. NOTE You cannot change the RAID level of any logical drive that spans arrays (RAID levels 10, 30, or 50). Table 3-1.
Chapter 3 HP NetRAID Config Removing a Physical Drive from a Logical Drive The procedures for removing a physical drive from a logical drive vary depending on the RAID level of the logical drive. RAID Level 0 There is no data redundancy in a RAID 0 system, so you cannot reconstruct this data while the HP NetServer is available. To remove a physical drive from a RAID 0 logical drive, you must back up your data, reconfigure the logical drive, then restore the data.
Chapter 3 HP NetRAID Config c. Use the arrow keys to highlight the Failed drive that you want to make available. d. Press Enter. An action menu appears. e. Select Make Online. f. Press Esc repeatedly to return to the HP NetRAID Config Management menu. 5. Configure this Ready disk by using the Easy Configuration or View/Add Configuration option from the Configure menu. Reclaiming a Hot Spare To change a hot spare into a Ready drive: 1. Choose Objects from the HP NetRAID Config Management menu. 2.
Chapter 3 HP NetRAID Config You do not have to use the Format option to erase existing information on your SCSI disks, such as a DOS partition. That information is erased when you choose the Initialize menu selection to initialize logical drives. Formatting Options Since most SCSI disk drives are low-level formatted at the factory, this step is usually not necessary.
4 HP NetRAID Express Tools Overview HP NetRAID Express Tools resides in the HP NetRAID BIOS, and is therefore available to all supported operating systems. This utility duplicates many of the management functions found in HP NetRAID Assistant and HP NetRAID Config. Because you must restart the HP NetServer to start HP NetRAID Express Tools, it is recommended that you use HP NetRAID Assistant or HP NetRAID Config whenever possible.
Chapter 4 HP NetRAID Express Tools • Memory Type (for HP NetRAID-1Si) • Power Fail Safeguard Parameter (also available with HP NetRAID Config) • Read Modify Write Mode • Reset to Default Settings • SCSI-2 Command Tagging • SCSI Termination (for HP NetRAID-3Si and integrated HP NetRAID in HP NetServer LH 3000/3000r, LH 6000/6000r, and LT 6000r; also available with HP NetRAID Config) • SCSI Transfer Rate • Span • Synchronous Negotiation • View/Add/Delete Config (also available with HP NetRAID Config) • Vir
Chapter 4 HP NetRAID Express Tools Option: Experienced users may press for HP NetRAID Express Tools now. Firmware Initializing When the system stops scanning, HP NetRAID Express Tools starts immediately. To exit HP NetRAID Express Tools 1. Press Esc at the Tools Management menu. 2. Choose Yes at the prompt. 3. Restart the HP NetServer. B HP NetRAID Express Tools Management Menu The HP NetRAID Express Tools Management menu options are described below.
Chapter 4 HP NetRAID Express Tools NOTE For internal mass storage in HP NetServer LH 3000/3000r, LH 6000/6000r, and LT 6000r, SCSI ID 5 is reserved for the SAF-TE processor that manages the hot-swap mass storage cage. For an external mass storage enclosure with a SAF-TE processor, a SCSI ID is reserved for that processor. The number of the reserved SCSI ID varies with the type of external enclosure. The SAF-TE processor is displayed as PROC.
Chapter 4 HP NetRAID Express Tools Objects Menu Choose the Objects option from the HP Express Tools Management Menu to access the adapters, logical drives, physical drives, and SCSI channels individually. You can also change settings for each object. The Objects submenu options are described below. Adapter To modify parameters of an HP NetRAID Series adapter or an integrated HP NetRAID controller, choose Adapter from the Objects menu. After selecting your adapter, the following submenu is displayed.
Chapter 4 HP NetRAID Express Tools ◊ For optimal performance of RAID 5 logical drives, use separate adapters to control arrays with three physical drives and arrays with four or more physical drives. • Change Disk Geometry: Changes the layout of logical drives presented to the NOS. The default setting is 8 GB, and the alternative is 2 GB. Different operating systems use different disk geometries. Your NOS documentation may indicate the disk geometry it uses.
Chapter 4 HP NetRAID Express Tools • Initiator ID: Changes the Initiator ID assumed by the HP NetRAID controller (adapter) at system boot-up. The default setting is SCSI ID 7. Logical Drive To perform a logical drive procedure, choose Logical Drive from the Objects menu. The logical drive options are: • Initialize: Initializes the selected logical drive. See "Initializing Logical Drives" in this chapter for more information.
Chapter 4 HP NetRAID Express Tools NOTE You do not need to use the Format option if you simply want to erase existing information on your hard drives, such as a DOS partition. Choosing the Intialize menu selection, and initializing the logical drive(s) erases that information. • Make Online: Changes the state of the selected disk drive to Online. • Fail Drive: Changes the state of the selected disk drive to Fail.
Chapter 4 HP NetRAID Express Tools adapter is at one end of the SCSI bus for the selected channel, you must use this option. This is the default setting. • Disable Termination: Available for HP NetRAID-3Si and integrated HP NetRAID in HP NetServer LH 3000/3000r, LH 6000/6000r, and LT 6000r. Disables termination on the adapter for the selected channel. Use this option if the selected SCSI channel is terminated with Wide devices at both ends.
Chapter 4 HP NetRAID Express Tools To format a physical drive, it must be in the Fail state. (You can change it to the Fail state by choosing Objects, then Physical Drive, then Fail Drive.) To format a hard drive, select Format, then select the drive you want to format from the drives listed. Press F10 to start the format. Rebuild Option Choose the Rebuild option from the HP NetRAID Express Tools Management menu to rebuild one or more failed disk drives.
Chapter 4 HP NetRAID Express Tools Disable/Enable BIOS Option This option disables or enables the BIOS firmware. The default setting is Enabled. If the BIOS is disabled, DOS cannot read logical drives, and you cannot boot from RAID. You might disable the BIOS in order to boot off the embedded SCSI instead of the adapter.
Chapter 4 HP NetRAID Express Tools create a hot spare that is dedicated to one specific logical drive. Users with other operating systems do not have the ability to create hot spares that are dedicated to one logical drive. Use one of the two methods described below to designate physical drives as global hot spares. • You can create a global hot spare by using the Objects selection from the Management menu. 1. Choose Objects from the Tools Management menu. 2. Select Physical Drive.
Chapter 4 HP NetRAID Express Tools Creating Arrays by Using Easy Configuration In Easy Configuration, each array is associated with exactly one logical drive. (It does not permit array spanning.) Follow the steps described below to create arrays by using Easy Configuration. 1. Choose Configure from the HP NetRAID Express Tools Management menu. 2. Choose Easy Configuration from the Configure menu, and the array selection menu appears. Hot key information is displayed at the bottom of the window.
Chapter 4 HP NetRAID Express Tools #Stripes The number of stripes (physical drives) in the associated physical array StrpSz The stripe size DriveState The state of the logical drive 5. To set the RAID level for the logical drive, highlight RAID and press Enter. The available RAID levels for the current logical drive are displayed. Select a RAID level and press Enter to confirm. 6. Set the stripe size, Write policy, Read policy, and Cache policy from the Advanced Menu.
Chapter 4 HP NetRAID Express Tools NOTE The New Configuration option erases the existing configuration information on the selected adapter. To create arrays by using New Configuration: 1. Choose Configure from the HP NetRAID Express Tools Management menu. 2. Choose New Configuration from the Configure menu. An array selection window is displayed showing the devices connected to the current adapter. Hot key information appears at the bottom of the window.
Chapter 4 HP NetRAID Express Tools 5. Press F10 to configure logical drives. The logical drive configuration window appears, as shown below: The window shows the logical drive that is currently being configured as well as any existing logical drives.
Chapter 4 HP NetRAID Express Tools (For definitions of the Write policy, Read policy, Cache policy, and their options, see the "Glossary.") Press Esc to exit the Advanced Menu. 9. Highlight Span and press Enter to set the spanning mode for the current logical drive. The options are: • CanSpan: Array spanning is enabled for the current logical drive. The logical drive can occupy space in up to four arrays. • NoSpan: Array spanning is disabled for the current logical drive.
Chapter 4 HP NetRAID Express Tools current adapter. Hot key information appears at the bottom of the window. The hot key functions are: Space Add the highlighted drive to the current array. Enter Stop adding drives to the current array, and configure the logical drive. F2 Display the manufacturer data and the adapter error count for the highlighted drive. F3 Display the logical drives that have been configured. F4 Designate the highlighted drive as a hot spare.
Chapter 4 HP NetRAID Express Tools LD The logical drive number RAID The RAID level Size The logical drive size #Stripes The number of stripes (physical drives) in the associated physical array StrpSz The stripe size Drive-State The state of the logical drive 6. To set the RAID level for the logical drive, highlight RAID and press Enter. The available RAID levels for the current logical drive appear. Select a RAID level and press Enter to confirm. 7.
Chapter 4 HP NetRAID Express Tools 9. Open the Advanced menu to set the remaining options. • Stripe Size: This parameter specifies the size of the segment written to each disk in a RAID logical drive. • Write Policy: This parameter specifies the cache write policy. You can set the write policy to Write-Back or Write-Through. • Read-Ahead: This parameter enables the SCSI Read-Ahead feature for the logical drive. You can set this parameter to Normal, Read-Ahead, or Adaptive.
Chapter 4 HP NetRAID Express Tools 1. Choose Initialize from the HP NetRAID Express Tools Management menu. A list of the current logical drives appears. 2. Press the arrow keys to highlight the drives you want to initialize. Press the Spacebar to select the highlighted logical drive for initialization. Press F2 to select/deselect all logical drives. 3. When you finish selecting logical drives, press F10 and choose Yes at the confirmation prompt. Initialization progress is displayed for each drive. 4.
Chapter 4 HP NetRAID Express Tools 2. Select Physical Drives, and choose a device. 3. Press F2 to display the Physical Drive Information window. The error count is displayed at the bottom of the Properties window. If you feel that the number of errors is excessive, you should probably format the disk drive. NOTE You do not need to use the Format option if you simply want to erase existing information on your SCSI disks, such as a DOS partition.
Chapter 4 HP NetRAID Express Tools Power Fail Safeguard, Alarm Control, and Cache Flush Timings. (You do not need to record the configuration of your physical and logical drives.) 4. Remove the old HP NetRAID Series adapter and insert the new one following these steps: a. Turn off the system, unplug the power cord(s) from the system, remove the HP NetServer cover or panel, and disconnect the SCSI cables from the existing HP NetRAID Series adapter.
Chapter 4 HP NetRAID Express Tools a. Choose Select Adapter from the Tools Management menu. b. Choose the adapter with the mismatched configuration. 8. Choose Configure from the Tools Management menu. 9. Choose View/Add/Delete from the Configure menu. 10. Choose View Disk Configuration from the View/Add/Delete menu. 11. After scanning has finished, press Esc. 12. Choose Yes to save the configuration.
5 Reconstructing and Rebuilding Drives Reconstructing and rebuilding are two important features of HP NetRAID systems. It is important to know the difference between these two terms. • Reconstructing is the process of reorganizing data when you make a fundamental change to your system such as changing RAID levels. See "Reconstructing Data" in this chapter for more information. • Rebuilding is the process of recreating data on a replacement drive after a drive failure.
Chapter 5 Reconstructing and Rebuilding Drives there is no risk of losing any data. The Power Fail Safeguard feature is an option that you can enable or disable by using HP NetRAID Express Tools (if you are using Windows NT or Windows 2000) or HP NetRAID Config utilities (if you are the Novell NetWare, IBM OS/2, SCO OpenServer, or SCO UnixWare). With or without PFS enabled, a reconstruction restarts automatically where it was interrupted by a power failure.
Chapter 5 Reconstructing and Rebuilding Drives 2. Restart the HP NetServer. Look for the following prompt during startup: Option: Experienced users may press for HP NetRAID Express Tools now. Firmware Initializing 3. Press . When the system stops scanning, HP NetRAID Express Tools starts. 4. Choose Objects from the Tools Management menu. 5. Choose Adapter from the Objects menu. 6. If you have more than one adapter, select the adapter for which you want to change the PFS setting. 7.
Chapter 5 Reconstructing and Rebuilding Drives Rebuilding Data If a disk drive fails in an array that is configured as a RAID 1, 3, 5, 10, 30, or 50 logical drive, you can recover the lost data by rebuilding the drive. If you have configured one or more hot spares, the drive can be rebuilt automatically. If you have not configured any hot spares, you can remove the failed drive, install a new one, and the HP NetRAID system begins rebuilding your data automatically.
Chapter 5 Reconstructing and Rebuilding Drives Changing the Autorebuild Setting The default setting for Autorebuild is enabled, so you normally do not need to change it. However, if you want to change this parameter, follow these instructions: 1. Log off all users, close all applications, and power down the HP NetServer. 2. Restart the server. Look for the following prompt during startup: Option: Experienced users may press for HP NetRAID Express Tools now. Firmware Initializing 3.
Chapter 5 Reconstructing and Rebuilding Drives You can view or change the Rebuild Rate from any of the three HP NetRAID utilities. To view or change the Rebuild Rate from HP NetRAID Express Tools: 1. If you have more than one adapter, choose Select Adapter from the Tools Management menu, and then select the adapter for which you want to change or view the Rebuild Rate. 2. Choose Objects from the HP NetRAID Express Tools Management menu. 3. Choose Adapter from the Objects menu. 4.
Chapter 5 Reconstructing and Rebuilding Drives • You installed a replacement drive in a different physical slot from the failed drive. • A logical drive of RAID level 0 shared space on the drive that needs to be rebuilt. To rebuild drives manually, you must have a Ready drive of equivalent size. The HP NetRAID system will not rebuild data onto a hot spare when you initiate the rebuild manually. You can select Manual Rebuild from all HP NetRAID management utilities.
Chapter 5 Reconstructing and Rebuilding Drives 2. Choose Rebuild from the Management menu. A device selection window is displayed showing the devices connected to the current adapter. The failed drives have FAIL indicators. 3. Use the arrow keys to highlight the first physical drive to be rebuilt then press the Spacebar to select it. 4. Use the arrow keys and Spacebar to select any additional physical drives to be rebuild. 5. Press F10 and type Yes at the confirmation prompt.
6 Capacity Expansion With HP NetRAID, you can expand capacity at any time by adding one or more new hard disks to your system. If you prepared for Online Capacity Expansion as described in the HP NetRAID Series Installation and Configuration Guide or the HP NetServer Integrated NetRAID Controller Configuration Guide, you can add disks to an existing logical drive without restarting the HP NetServer.
Chapter 6 Capacity Expansion • Preparation Steps for NetWare 4.2 explains how to enable Virtual Sizing and how to partition your physical drives to use Online Capacity Expansion. • Expanding Capacity Online under NetWare 4.2 describes how to use the Online Capacity Expansion feature to add physical drives to your system without restarting the HP NetServer. • Expanding Capacity under NetWare 4.
Chapter 6 Capacity Expansion Precautions When using the Online Capacity Expansion feature, it is very important that you do not create volumes that exceed the actual physical capacity. You must add up the capacities of all volumes that may be using the physical storage space, such as a DOS volume, SYS volume, Hot Fix Area, and any user volumes. This is most important if NetWare 4.2 will be installed on the disk array (rather than a SCSI disk outside of the HP NetRAID system).
Chapter 6 Capacity Expansion Planning for Online Capacity Expansion under NetWare 4.2 To permit easy capacity expansion of a NetWare 4.2 installation, plan ahead and consider your storage use. • Since NetWare 4.2 permits only one NetWare partition per logical drive, make the NetWare partition the size of the virtual logical drive in advance so that you can expand that volume. • Under NetWare 4.2, you cannot grow a partition, but you can add additional segments within an existing partition.
Chapter 6 Capacity Expansion I. Connect Disk Drives to HP NetRAID Connect physical drives to the HP NetRAID Series adapter or integrated HP NetRAID controller. For example, you might have four drives of 4 GB each connected to the HP NetRAID Series adapter. II. Configure HP NetRAID NOTE The Online Capacity Expansion feature is supported only on arrays that contain just one logical drive each. Configure your HP NetRAID Series adapter or integrated HP NetRAID controller and create your logical drives.
Chapter 6 Capacity Expansion 4. Choose Objects from the Tools Management menu. 5. Choose Logical Drive from the Objects menu. 6. From the Logical Drives menu, choose the logical drive you want to prepare for expansion. 7. From the Logical Drive menu for the drive you want to prepare, choose Properties. 8. Choose Virtual Sizing. 9. On the Virtual Size Feature menu, choose Enable, and confirm your choice. 10. Press Esc twice to return to the Logical Drive menu.
Chapter 6 Capacity Expansion V. Create the NetWare Volume How you create the NetWare volume depends on where you installed NetWare. • For drives that do not contain the NetWare 4.2 operating system, see "Create Volumes on Drives that do not Contain NetWare 4.2." • If NetWare 4.2 was installed on a disk array, see "Create Volumes on Drives That Contain NetWare 4.2." Create Volumes on Drives that do not Contain NetWare 4.2 Do the following to create a volume that does not contain the NetWare 4.
Chapter 6 Capacity Expansion NOTE A NetWare 4.2 SYS volume should be limited to 2 GB or to a smaller size appropriate for your system. Use the balance for a user volume. Virtual Sizing can be used with a disk array that is used as the boot device and also contains user data. If NetWare 4.2 must reside on the disk array, follow these steps: 1. Create a DOS partition of 500 MB or less for booting. 2. Create additional NetWare volumes after the DOS partition on the same logical drive for data.
Chapter 6 Capacity Expansion First, Install Additional Capacity Install the additional physical capacity (hot-swap disk drive modules) into the internal hot-swap mass storage cage or into the external enclosure. The cage or enclosure must already be connected to the integrated HP NetRAID controller or HP NetRAID Series adapter controlling the logical drive that you want to expand. Second, Reconstruct to Add Capacity 1. Load the HP NetRAID Config utility (megamgr.nlm module) under NetWare. 2.
Chapter 6 Capacity Expansion Expanding Capacity under NetWare 4.2 with Virtual Sizing Disabled If you already are using a logical drive without Virtual Sizing enabled, but now wish to add capacity to an existing volume, your options are limited. Here are the likely scenarios when Virtual Sizing has not been enabled. Without Restart Without restarting the HP NetServer, you can only add capacity as a new volume.
Chapter 6 Capacity Expansion • Expanding Capacity under NetWare 5 with Virtual Sizing Enabled describes how you can add disk capacity to an existing logical drive if you did not prepare your logical drive initially to use the Online Capacity Expansion feature. About Online Capacity Expansion under NetWare 5 Normally, to add capacity you must shut down the server to reconfigure and then restore data, or you must add the new storage space as a new volume.
Chapter 6 Capacity Expansion In most installations, the operating system is installed on a SCSI drive connected outside of the HP NetRAID system. However, NetWare 5 can reside on a disk array in the HP NetRAID system to achieve redundancy. Preparation Steps for NetWare 5 This section tells you how to enable Virtual Sizing and set up your partitions to permit easy capacity expansion. It assumes that you have already installed NetWare 5.
Chapter 6 Capacity Expansion III. Disable Virtual Sizing The only other requirement for online capacity expansion of your logical drive is that Virtual Sizing is disabled. This is the factory default setting. • If Virtual Sizing is Disabled (the factory default setting), no other preparation is necessary. • If Virtual Sizing is Enabled, disable Virtual Sizing in HP NetRAID Express Tools, as described below.
Chapter 6 Capacity Expansion 7. From the Logical Drive menu for the drive you want to prepare, choose Properties. 8. Choose Virtual Sizing. 9. On the Virtual Size Feature menu, choose Disable, and confirm your choice. 10. Press Esc twice to return to the Logical Drive menu. If you need to disable Virtual Sizing on another logical drive, choose the logical drive and repeat Steps 6 through 10. 11. If you have installed one or more HP NetRAID Series adapters, press Esc to return to the Objects menu.
Chapter 6 Capacity Expansion Second, Reconstruct to Add Capacity After you have installed the additional physical capacity, run HP NetRAID Config to reconstruct the HP NetRAID logical drive to include the added capacity, as follows: 1. Load the HP NetRAID Config utility (megamgr.nlm module) under NetWare. 2. The HP NetRAID Config Management menu is displayed. Choose the Advanced menu, and press Enter. 3. In the Advanced menu, the only item is Reconstruct Logical Drive. Press Enter to choose it. 4.
Chapter 6 Capacity Expansion 4. Choose Modify disk partitions and Hot Fix, and press Enter. 5. The available devices are shown. Choose the logical drive that you reconstructed in HP NetRAID Config, and press Enter. 6. The Disk Partition Type display shows the free space in the logical drive. On the Disk Options Selections menu, choose Create NetWare disk partition, and press Enter.
Chapter 6 Capacity Expansion 15. The segment is added to the existing volume, and the Volume Disk Segment List shows the new segment. Press the F10 function key to save changes and return to the Volume Name List. 16. Press Esc to save changes and return to the previous screen. 17. Answer Yes to the "Save volume changes?" question. Press Enter. 18. On the Select an action menu, choose Mount all volumes, and press Enter. 19. You return to the main menu.
Chapter 6 Capacity Expansion • About Online Capacity Expansion under Windows NT describes the Online Capacity Expansion feature. This feature allows new storage capacity to be added to an existing logical drive and put online for use without restarting the server. • Preparation Steps for Windows NT explains how you enable Virtual Sizing and how to partition your drives to use this feature of HP NetRAID.
Chapter 6 Capacity Expansion Precautions When using the Online Capacity Expansion feature, it is important that you do not create volumes that exceed the actual physical capacity. If you attempt to do this under Windows NT, the format operation will fail. If you extend an existing partition into virtual space, this is detected upon rebooting. In either case, be sure to use no more than the actual available physical capacity.
Chapter 6 Capacity Expansion NOTE The Online Capacity Expansion feature is supported only on arrays that contain just one logical drive each. For example, your array of four drives (of 4 GB each) might be configured as a single RAID 5 logical drive. This produces a logical drive of 12 GB of real storage capacity. III. Enable Virtual Sizing 1. Restart the host HP NetServer, and watch for the flashing message: Option: Experienced users may press for HP NetRAID Express Tools now.
Chapter 6 Capacity Expansion NOTE Clearing a previous configuration does not reset the Virtual Sizing setting for a logical drive. Use the Reset to Factory Defaults option in HP NetRAID Express Tools to disable Virtual Sizing for all logical drives or manually change the setting. IV. Start Windows NT and Enter the Disk Administrator. Start Windows NT and enter the Disk Administrator. Here you see the new logical drive shown as a single unpartitioned/unformatted drive of 500 GB.
Chapter 6 Capacity Expansion Partition and Format a Drive that Contains Windows NT Sometimes it is desirable to have the network operating system reside on a disk array. The advantage is that the NOS resides on a redundant drive. Virtual Sizing can be used with a disk array that is used as the boot device and also contains user data. The key limitation is that Windows NT only allows a FAT boot partition size of 4 GB or less.
Chapter 6 Capacity Expansion 2. Partition and Format New Capacity. 1. When the reconstruction is complete, enter the Disk Administrator. In our example, the original drive is still shown as E: and is 12 GB. 2. Select the unpartitioned area, and create a primary partition of 4 GB. 3. Format the new partition. In our example, you now have another drive (say F:) of 4 GB without restarting. 4. Exit the Disk Administrator and begin use of the new capacity on the F volume.
Chapter 6 Capacity Expansion Capacity Expansion under Windows 2000 This section describes how to expand disk capacity after the system has been in operation for a time. This section is divided into these parts: • About Online Capacity Expansion under Windows 2000 describes the Online Capacity Expansion feature. This feature allows new storage capacity to be added to an existing logical drive and put online for use without restarting the server.
Chapter 6 Capacity Expansion Preparation Steps for Windows 2000 This section tells you how to disable Virtual Sizing to permit online capacity expansion. Online capacity expansion under Windows 2000 requires the following: • Windows 2000 is already installed. • HP NetRAID Assistant is already installed. The version of HP NetRAID Assistant must be the same or newer than version A.02.02. • The logical drive that you plan to expand must be running in Basic Disk Mode in Windows 2000.
Chapter 6 Capacity Expansion NOTE It is important to initialize your logical drives. If the drives have been previously configured under an operating system, there can sometimes be residual partition/format information which subsequently causes misrepresentation of logical drives under the Windows 2000 Disk Management. For example, your array of four drives (of 4 GB each) might be configured as a single RAID 5 logical drive.
Chapter 6 Capacity Expansion a. Choose Adapter from the Tools Management menu. b. Choose the adapter controlling the logical drive. 4. Choose Objects from the Tools Management menu. 5. Choose Logical Drive from the Objects menu. 6. From the Logical Drive menu, choose the logical drive you want to prepare for expansion. 7. From the Logical Drive menu for the drive you want to prepare, choose Properties. 8. Choose Virtual Sizing. 9. On the Virtual Size menu, choose Disable, and confirm your choice. 10.
Chapter 6 Capacity Expansion First, Install Additional Capacity Install the additional physical capacity (hot-swap disk drive modules) into the internal hot-swap mass storage cage or into the external enclosure. The cage or enclosure must already be connected to the integrated HP NetRAID controller or HP NetRAID Series adapter controlling the logical drive that you want to expand.
Chapter 6 Capacity Expansion NOTE Verify that "Basic" is displayed below the disk number to the left of the existing volume to the left of the unallocated space. This confirms that the logical drive is in Basic Disk Mode. If "Dynamic" is displayed, the logical drive is in Dynamic Disk Mode, and you cannot expand capacity online as described in this section. In our example, Select the unpartitioned area, and create a primary partition of 4 GB. 3.
7 Monitor Alert List This chapter lists monitor messages for the supported network operating systems that provide information about the monitor utility, adapters (HP NetRAID adapters and integrated HP NetRAID controllers), physical drives, and logical drives. For BIOS error messages and other troubleshooting, refer to the "Troubleshooting" chapter in the HP NetRAID Series Installation and Configuration Guide or the HP NetServer Integrated NetRAID Controller Configuration Guide.
Chapter 7 Monitor Alert List IBM OS/2 Monitor Messages Table 7-2. OS/2 Monitor Messages Condition Messages Logical drive state change Adp = # LogDrv # state changed from (previous state) to (new state). Physical drive state change Adp = # PhysDrv at Ch # Tid # state changed from (previous state) to (new state).
Chapter 7 Monitor Alert List SCO OpenServer and UnixWare Monitor Messages Table 7-3. SCO OpenServer and UnixWare Monitor Messages Condition Messages Monitor starts HP NetRAID Monitor activated Monitor deactivated HP NetRAID Monitor deactivated No adapter found No HP NetRAID adapter found Adapter inquiry failed HP NetRAID inquiry failed for adapter x Physical drive state change Adapter: # PDrv Channel: SCSI ID # state change from (previous state) to (new state).
8 Alarm Control and Audible Warnings HP NetRAID Series adapters have onboard tone generators that indicate events and errors. NOTE The integrated HP NetRAID controller does not have alarm control or audible warnings. Table 8-1. Audible Warnings Tone Pattern Meaning Three seconds on and one second off A logical drive is offline. Examples One or more drives in a RAID 0 configuration failed. Two or more drives in a RAID 1, 3, 5, 10, 30, or 50 configuration failed.
Glossary HP NetRAID Terms and Technology Array: An array of disk modules combines the storage space on the disk modules into a single segment of contiguous storage space. HP NetRAID can group disk modules on one or more of its SCSI channels into an array. A hot spare disk module does not participate in an array. Array Spanning: Array spanning by a logical drive combines storage space of two, three, or four arrays of disk modules into a logical drive’s single, contiguous storage space.
Glossary Reconstruction is only permitted on a logical drive that occupies a single array and is the only logical drive in the array. You cannot use online capacity expansion on logical drives that span arrays (RAID levels 10, 30, or 50). Channel: An electrical path for the transfer of data and control information between a disk and a disk adapter or controller. Consistency Check: An examination of the disk system on a stripe-by-stripe basis to verify that data and parity are valid.
Glossary and the hot-spare disk must have sufficient capacity. The system administrator can replace the failed disk module and designate the replacement disk module as a new hot spare. Hot-Swap Disk Module: Hot-swap modules allow a system administrator to replace a failed disk drive in a server without powering down the server and suspending network services.
Glossary • Reconstructing: Participating disk modules are being reconstructed. • Rebuilding: Participating disk modules are being rebuilt. I/O operations can only be performed with logical drives that are online or degraded (critical). Logical Volume: An array virtual disk made up of logical disks rather than physical ones. Also called a partition. MB: A megabyte; an abbreviation for 1,048,576 (2 to the 20th power) bytes; used for memory or disk capacities.
Glossary RAID Levels: A style of redundancy applied to a particular logical drive. It may increase the performance of the logical drive, and it may decrease its usable capacity. Each logical drive must have a RAID level assigned to it. RAID levels 0, 1, 3, and 5 are for logical drives that occupy a single array (do not span arrays). Briefly, • RAID 0 has no redundancy. It requires one or more physical drives. • RAID 1 has mirrored redundancy. It requires two physical drives in an array.
Glossary Rebuild Rate: The speed at which a rebuild operation occurs. Each HP NetRAID Series adapter or integrated HP NetRAID controller is assigned a rebuild rate, which specifies the percentage of processor resources to be devoted to rebuild operations. Reconstruct: The act of remaking a logical drive after changing RAID levels. Redundancy: The provision of multiple interchangeable components to perform a single function to cope with failures and errors.
Glossary SCSI ID: Each SCSI device on an HP NetRAID SCSI bus must have a different SCSI address number (Target ID, or TID) from 0 to 15, but not 7, which is reserved for the SCSI controller. Drives IDs are determined by the slot positions or are set by switches. Consult your HP NetServer documentation and chassis labels for slot position IDs or correct switch settings. SNMP: (Simple Network Management Protocol) The Internet standard protocol developed to manage nodes on an Internet Protocol (IP) network.
Glossary Write Policy: When the processor writes to disk, the data is first written to the cache on the assumption that the processor will probably read it again soon. The two Write policies for HP NetRAID are: • Write-Through: In a write-through cache, data is written to disk at the same time as it is cached. Write-through is simpler than write-back, because an entry that is to be replaced can be overwritten in the cache, as it will already have been copied to disk.
Index A Abort Rebuild, 22 Activate Channel, 54 Adapter icon, 17 Adapter menu HP NetRAID Assistant, 20 HP NetRAID Config, 52 HP NetRAID Express Tools, 79 Adapter Type, 10, 80 Adapters, changing HP NetRAID Assistant, 17 HP NetRAID Config, 52 HP NetRAID Express Tools, 85 Adapters, swapping, 96 Advanced menu HP NetRAID Config, 57 Advanced Menu logical drive, 25 Alarm Control, 10, 141 HP NetRAID Assistant, 21 HP NetRAID Config, 52 HP NetRAID Express Tools, 85 Array spanning HP NetRAID Assistant, 34 HP NetRAID Co
Index Configuring Another Adapter HP NetRAID Assistant, 37 Configuring arrays and logical drives HP NetRAID Config, 57 HP NetRAID Express Tools, 85 Configuring arrays and logical drives, HP NetRAID Assistant, 25 Creating arrays HP NetRAID Express Tools, 86 D Deactivate Channel, 54 Dedicated hot spares, 31 Defining arrays, 30 Defining logical drives, 32 Delete last array, 24 Diagnostics, 10, 80 Disable BIOS, 10 Disable Termination, 55, 83 Disable/Enable BIOS, 85 Disk Geometry, 10, 80 Disk Spin-Up Timings, 1
Index HP NetRAID ConfigAdapter menu, 52 HP NetRAID drivers, 13 HP NetRAID Express Tools, 8, 75 Adapter menu, 79 Alarm Control menu, 52, 85 Battery Backup, 83 Configure menu, 78 Logical Drive menu, 81 Management menu, 77 Objects menu, 79 Physical Drive menu, 81 SCSI Channel menu, 82 starting, 8, 76 HP NetRAID NT monitor service, 47 HP NetRAID Series Installation and Configuration Guide, 1 HP NetRAID Series User Guide, 1 HP NetRAID utilities, 3, 10, 13 HP NetServer Integrated NetRAID Controller Configuration
Index OpenServer and UnixWare monitor messages, 139 OS/2, 13 OS/2 monitor messages, 138 P PCI class code, 10, 80 Performance Monitor On/Off, 20 Physical drive making offline/online, 43 Physical Drive menu HP NetRAID Assistant, 21 HP NetRAID Config, 54 HP NetRAID Express Tools, 81 Physical Drive right mouse button menu, 22 Physical drive states, 17 Power Fail Safeguard, 11, 52, 79, 99 Preview Configuration, 35 Print Config, 11 Print Configuration, 19, 37 PROC, 50, 78 Progress menu, 25 Properties adapter, 20
Index T Terminate High 8 Bits, 54, 82 Terminate Wide Channel, 55, 82 Tools, HP NetRAID Assistant, 22 U UnixWare, 13 UnixWare and OpenServer monitor messages, 139 Update Drive Firmware, 11 Update Drv Firmware, 22 Update Firmware, 20 Utilities, HP NetRAID, 3, 10, 13 V View Adapter Performance, 52 View Log, 11, 21 View Only mode, 46 View Parameters (SCSI channel), 55 View Performance, 53 View Rebuild Progress, 54 View/Add Configuration, 65 View/Add/Delete Config, 11 View/Add/Delete Configuration, 91 View/Upd
