Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 44)

Perform the following steps to add array disks to a virtual disk or to change the virtual disk's RAID level:
1. Right-click a virtual disk.
2. Click Add Member.
A Virtual Disk Add Member dialog box appears. The available disks are listed in the left pane. You can choose
appropriate disks to add by selecting them and using Add Disk to move them to the right pane.
3. Choose the RAID level in the Virtual Disk Type pull-down menu.
4. Click OK to continue or Cancel to cancel the operation.
Add Member shows progress information in the right pane.
5. To view your progress, click the parent of the virtual disk.
The status of the virtual disk will be Reconstructing, and progress information displays until the Add Member
operation is finished. At the end of the operation, the Type category shows the changed RAID level.
Using Transform Type
The following is a list of supported RAID level migrations:
RAID 1 to RAID 0
RAID 5 to RAID 0
To change a RAID level of a virtual disk without adding or removing disks, perform the following steps:
1. Right-click the virtual disk whose type you want to transform.
The Virtual Disk Transform Type dialog box appears.
2. Select RAID Type or Stripe Size from the available choices.
3. Click OK to continue or Cancel to quit the operation.
A warning dialog box appears asking if you want to continue.
4. Click Yes.
Transform Type displays progress information in the right pane.
5. To view progress, click the parent of the virtual disk.
The status of the virtual disk will be Reconstructing, and progress information displays until the operation is finished.
At the end of the operation, the Type category shows the changed RAID level.
Using Change Policy
To change the cache policies of a virtual disk, perform the following steps:
1. Right-click a virtual disk.
2. Click Change Policy.
The Virtual Disk Change Policy dialog box displays.