Migrating the RAID Level without Adding or Removing Drives
For example, if you migrate the RAID level of your drive group from RAID 5 to RAID 0, the Modify Drive Group wizard lets you migrate the RAID level without adding or removing the drives.
In the Modify Drive Group window, select Migrate RAID level.
Click Next.
The RAID level is migrated. A confirmation message appears. You can monitor the progress of the reconstruction. See Background Operations Support.