Intel® Virtual RAID on CPU (Intel® VROC) Various Strip Sizes Support

The Intel® VROC family of products provides the ability to change the strip size on existing volumes (migration required). Intel® VROC will support a strip size migration in conjunction with a RAID level migration.

Migration supports strip sizes for the respective RAID levels supported. Strip size support for values is in kilobytes.

The following table lists the available strip size configurations.

The user can assign a data strip size to a volume while creating a new volume or while changing the type of an existing volume. The user cannot change the strip size of an existing volume without changing its type.

The strip size refers to each logical contiguous data block used in a RAID 0, RAID 5, or RAID 10 volume. This setting is not available for RAID 1 volumes due to its redundant configuration. The default strip size for RAID 1 volumes is 128KB. The default value for all the RAID types is the recommended strip size based on the system configuration and the volume type selected; changing the pre-selection for RAID 0, 5 and 10 volumes is best suited for advanced users.

The following table describes the usage scenarios for the typical strip sizes. The data provided in this table may vary based on the brand, type, size, and speed of the disks used.

Setting the Strip Size When Creating a Volume

1. Using the Intel® VROC Graphical User Interface (GUI) application in Windows*, click Create Volume.
2. Select the volume type, and then click Next.
3. Make the required disk selection, and then select a new data strip size from the drop-down list in the Advanced section.
4. Complete the volume creation process as described in Intel® Virtual RAID on CPU (Intel® VROC) RAID Volume Creation Using the Intel® VROC Graphical User Interface (GUI).

Setting the Strip Size When Changing Volume Type

1. Using the Intel® VROC GUI application in Windows*, in the storage system view, click the RAID volume that the user wants to modify. The volume properties are now displayed on the right.
2. Click Change Type.
3. Make the necessary volume type and disk selections, and then select a new data strip size.
4. Click OK to change the type of the existing volume. The Manage page refreshes and reports the new volume configuration.