Dell PowerEdge RAID Controller 12 User’s Guide PERC H965i Adapter, PERC H965i Front, PERC H965i MX, and PERC H965e Adapter

Create virtual disk and configure virtual disk parameters

1. Enter the Dell PERC 12 Configuration Utility. See, Navigating to the Dell PERC 12 configuration utility.
2. Click Main Menu > Configuration Management > Create Virtual Disk.
3. Select the RAID level. You can select PDs from either unconfigured capacity or free capacity.
   The list of physical disks appear.
4. Click Select Physical Disks. See Select physical disks for creating VDs.
5. Select the physical disks for the selected RAID level and click OK.
6. Click Confirm and click Yes.
7. Click OK. The CONFIGURE VIRTUAL DISK PARAMETERS section is displayed.
   NOTE:Mixing of TCG Enterprise and TCG Opal SED protocols in a virtual disk is not supported.

   Table 1. Virtual disk parameters and their descriptionsVirtual disk parameters and their descriptions

   Virtual disk parameters	Description
   Virtual Disk Name	Enter the name of the virtual disk.
   Virtual Disk Size	Displays the maximum capacity available for the virtual disk.
   Virtual Disk Size Unit	Displays the virtual disk storage space either in GiB or TiB.
   Strip Element Size	Select the strip element size. The disk striping involves partitioning each physical disk storage space in stripes of the sizes 64 KiB and 256 KiB.
   Read Cache Policy	Displays the controller read policy. By default, the read cache policy is set to No Read-Ahead. You can set the Read policy to: Read-Ahead—The controller speeds up sequential Read operations on Write-Back virtual disks. This is supported only on HDDs. No Read-Ahead— Read-Ahead is not enabled for the virtual drive
   Write Cache Policy	Displays the controller write cache policy You can set the write policy to: Write-Through—The controller sends a data transfer completion signal to the host when the disk subsystem has received all the data in a transaction. Write-Back—The controller sends a data transfer completion signal to the host when the controller cache has received all the data in a transaction. Force Write-Back—The controller sends a data transfer completion signal to the host when the controller cache has received all the data in a transaction, even if the controller energy pack is below the threshold charge. By default, the Write Cache Policy is set to Write-Back.
   Disk Write Cache Policy	Select the disk cache policy to Default, Enable, or Disable. By default, the Disk Write Cache Policy is set to Default.
   Default Initialization	Select the default initialization to: No —Virtual disk is not initialized. Fast—The first and last 8 MB of the virtual disk is initialized. Full—Entire virtual disk is initialized. For more information, see Virtual disk initialization. By default, the default initialization is set to No.

8. Click Create virtual disk.
9. Click Confirm and click Yes. The virtual disk is created.