Migrating the RAID Level Without Adding or Removing Drives

For example, if you migrate the RAID level of your array from RAID 5 to RAID 0, the Modify Array wizard lets you migrate the RAID level without adding or removing the drives.
Select Migrate RAID level in the Modify Array, and click Next.
The RAID level is migrated. A confirmation message appears. You can monitor the progress of the transformation. See Background Operations Support.