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Parameter DescriptionRead Policy Read-Ahead enables the read-ahead feature for the virtual disk. You can setthe parameter to Read-Ahead, No-Read-Ahead, or Adaptive-Read-Ahead.The default is Adaptive-Read-Ahead.Read-Ahead specifies that the controller uses Read-Ahead for the currentvirtual disk. Read-Ahead capability allows the controller to read sequentiallyahead of requested data and store the additional data in the cache memory,anticipating that the data is required soon.No-Read-Ahead specifies that the controller does not use read ahead for thecurrent virtual disk.Adaptive-Read-Ahead specifies that the controller begins using Read-Aheadif the two most recent disk accesses occurred in sequential sectors. If all readrequests are random, the algorithm reverts to No-Read-Ahead; however, allrequests are still evaluated for possible sequential operation.Virtual Disk ManagementCreating Virtual DisksNOTE: Combining SAS and SATA disk drives within a virtual disk is not supported. Also, combiningdisk drives and SSDs within a virtual disk is not supported.NOTE: To create secured virtual disks, see Security Key And RAID Management.Perform the following steps to create a virtual disk:1. During host system bootup, press after the BIOS screen is displayed.The Virtual Disk Management screen is displayed. If there is more than one controller, the mainmenu screen is displayed. Select a controller, and press . The Virtual Disk Managementscreen is displayed for the selected controller.2. Use the arrow keys to highlight PERC H730P Adapter or Disk Group #.3. Press .A list of available actions is displayed.4. Select Create New VD and press .The Create New VD screen is displayed. The cursor is on the RAID Level option. When adding avirtual disk to a Disk Group, the Add VD in Disk Group screen is displayed. Skip to step 11 to changethe basic settings of the virtual disk.5. Press to display the possible RAID levels.6. Press the down-arrow key to select a RAID level and press .7. When creating a spanned virtual disk (RAID 50 or 60), enter the number of physical disks per span inthe PD per Span field and press .8. Press to move the cursor to the list of physical disks.9. Use the arrow key to highlight a physical disk and press the spacebar, , or to select thedisk.10. Select additional disks, if required.11. Press to move the cursor to the Basic Settings box.44 |
