Symptoms

This article provides the steps for creating and initializing a virtual array or virtual disk (VD) with the Dell BIOS Utility of PowerEdge RAID Controllers (PERC) Series 7, 8, and 9.

Cause

Not applicable

Resolution

The instructions below are valid for following PowerEdge RAID controllers (PERC): 5(i+e), 6(i+e), H700, H800, H310, H710, H810, H330, H730 and H830. For information about PERC 10 and PERC 11, reference How to Create a Virtual Disk on a Dell Raid Controller Series 10 and 11. Table of Contents: Create Virtual DiskInitialize Virtual DiskConverting Physical Disk to RAID CapableConverting disk to Non-RAIDMake global hot spare 1. Create Virtual Disk Perform the following steps to create virtual disks. During host system boot up, press Ctrl>R> when the BIOS banner displays. The Virtual Disk Management screen displays. If there is more than one controller, the main menu screen displays. Select a controller, and press Enter>. The Virtual Disk Management screen displays for the selected controller. Use the arrow keys to highlight Controller # or Disk Group #. Press F2> to display the actions you can perform. Figure 1: Creating New VD Select Create New VD and press Enter> (Figure 1 (English-only)). The Create New VD screen displays. The cursor is on the RAID Levels option. When adding a VD to a Disk Group, the Add VD in Disk Group screen displays. Go to step 10 to change the VD basic settings Press Enter> to display the possible RAID levels (Figure 2 (English-only)), based on the physical disks available. Figure 2: Possible RAID Levels Press the down-arrow key to select a RAID level and press Enter>. When creating a spanned virtual disk (RAID 10, 50 or 60), enter the number of physical disks per span in the PD per Span field (Figure 3 (English-only)) and press Enter>. Press Tab> to move the cursor to the list of physical disks. Figure 3: The PD per Span Field Use the arrow key to highlight a physical disk and press the spacebar>, Alt>, or Enter> to select the disk. Select additional disks, if wanted. Press Tab> to move the cursor to the Basic Settings box. Set the virtual disk size in the VD Size field. The virtual disk size displays in GB format. Press Tab> to access the VD Size field and type a virtual disk name. Press Tab> to move the cursor to Advanced Settings. Press the spacebar> to make the settings active so that you can change them. An X displays beside Advanced Settings. The settings are the stripe element size, read policy, and write policy. You can also choose advanced options such as forcing the cache policy to Write-Back, initializing the virtual disk, and configuring a dedicated hot spare. The defaults for these parameters are present when the window displays. You can accept the defaults or change them. Figure 4: Initializing the VD Perform the following steps to select the virtual disk parameters: Press Tab> to move the cursor to the parameters you want to change. Press the down-arrow key to open the parameters and scroll down the list of settings. To change the stripe element size, press Tab> to highlight Stripe Element Size. Press Enter> to display the list of stripe element sizes (8 KB, 16 KB, 32 KB, 64 KB, 128 KB, 256 KB, 512 KB, and 1024 KB). Press the down-arrow key to highlight the wanted option and press Enter>. Note: The default is 64 KB. If you must change the read policy, press Tab> to move the cursor to Read Policy. Press Enter> to display the options (No Read Ahead, Read Ahead, or Adaptive Read Ahead). Press the down-arrow key to highlight the wanted option and press Enter>. If you must change the write policy, press Tab> to move the cursor to Write Policy. Press Enter> to display the options (Write-Through, Write Back). Press the down-arrow key to highlight an option and press Enter>. Press Tab> to move the cursor to Force WB with no battery and press Enter>. If you chose Write-Through as the write policy, then this option is not available. Press Tab> to move the cursor to Configure Hot Spare and press Enter>. If you have chosen to create hot spares in the earlier steps, a pop-up window displays where drives with appropriate sizes are displayed. Press the spacebar> to select the drive size. After you select the drive size, click OK to finalize the selection or click Cancel to forfeit the selection. Select OK to accept the settings and press Enter> to exit this window or select Cancel and press Enter> to exit if you do not want to change any virtual disk parameters. 2. Initialize Virtual Disk Perform the following steps to initialize virtual disks. On the VD Mgmt screen, select Virtual Disk # and press F2> to display the menu of available actions. Select Initialization (Figure 5 (English-only)) and press the right-arrow key to display the Initialization submenu options. Figure 5: The Initialization Submenu Select Start Init. to begin a regular initialization or select Fast Init. to begin a fast initialization. A pop-up window displays indicating that the virtual disk has been initialized. Repeat the procedures in this section to configure another virtual disk. 3. Converting Physical Disk to RAID Capable Perform the following Convert Physical disk to raid capable: Press (Ctrl)(N) to access the PD Mgmt screen. A list of physical disks is displayed. The status of each disk is displayed under State. Press the down-arrow key to highlight a physical disk. Press to display the menu of available actions. Press the down-arrow key to highlight Convert to RAID Capable. Press Enter>. 4. Converting Physical Disk to Non-Raid Perform the following steps to convert physical disks to Non-raid: Press (Ctrl)(N) to access the PD Mgmt screen. A list of physical disks is displayed. The status of each disk is displayed under State. Press the down-arrow key to highlight a physical disk. Press F2> to display the menu of available actions. Press the down-arrow key to highlight Convert to Non-RAID. Press Enter>. 5.Using the PERC BIOS Controller to make global hot spare Perform the following steps to create global hot spares: Press the down-arrow key to highlight a physical disk to change to a global hot spare. Press to display the menu of available actions. Press the down-arrow key to highlight Make Global HS and press .

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