Consider this RAID level... | If your array has... |
RAID 0 |
One or more hard disk drives in an array. Notes:
|
RAID 1 | Two hard disk drives. The default for two hard disk drives is RAID level-1. |
RAID 1 Enhanced | Three or more disk drives. |
RAID 5 | Three or more disk drives. |
Note: If you plan to use Change RAID level, you must assign the same RAID level to all logical drives in the array.
Selecting a RAID level (Performance tuning)