60 RAID Configuration and ManagementCreating Virtual DisksNOTE: PERC 5 does not support creation of a virtual disk that combines SAS and SATA physical disksPerform the following steps to create virtual disks.1 During host system bootup, press when the BIOS banner displays.The Virtual Disk Management screen displays.NOTE: This procedure describes the BIOS Configuration Utility screens in Tree View.2 Highlight Controller #.3 Press to display the actions you can perform, which are creating new virtual disks, resetting aconfiguration, and importing or clearing a foreign configuration.4 Select Create New VD and press .The Create New VD screen displays. The cursor is on the RAID Levels option.5 Press to display the RAID levels.6 Press the down arrow key to select a RAID level and press .7 Press to move the cursor to the list of physical disks.8 Use the down arrow key to highlight a physical disk and press the spacebar to select the disk.9 Select additional disks, if desired.10 Press to move the cursor to the box Basic Settings and set the virtual disk size and name.The virtual disk size displays in megabyte (MB) format.NOTE: For RAID levels 0, 1, and 5 only, you can use part of the available disk space to create one virtual diskand then use the rest of the disk space to create another virtual disk or disks.11 Press to move the cursor to Advanced Settings.12 Press the spacebar to make the settings active so that you can change them.An X displays next to Advanced Settings. The settings are the stripe element size and read policy. Youcan also choose advanced options such as forcing the cache policy to be Write-back, initializing thevirtual disk, and configuring a dedicated hot spare.The defaults for these parameters display when the window displays. You can accept the defaults orchange them. See "Virtual Disk Parameters and Descriptions" on page 59 for detailed informationabout the virtual disk parameters.13 Perform the following steps to select the virtual disk parameters:a Press to move the cursor to the parameters you want to change.b Press the down arrow key to open the parameters and scroll down the list of settings.c To change the stripe element size, press to highlight Stripe Element Size.d Press to display the list of stripe element sizes (8 KB, 16 KB, 32 KB, 64 KB, and 128 KB),then press the down arrow key to highlight an option and press .Dell_PERC5_UG.book Page 60 Tuesday, February 13, 2007 6:02 PM
