## Selecting the RAID level by array capacity

Consider this RAID level... | If your array has...
RAID level-0 | One or more hard disk drives in an array.
Notes: | This is the only choice if the array contains only one hard disk drive. You can select RAID 0 for any logical drive.
RAID level-1 | Two hard disk drives. The default for two hard disk drives is RAID level-1.
RAID level-1E | Three or more disk drives.
RAID level-5 | Three or more disk drives.
RAID level-5E | Four or more disk drives.
RAID level-00 | Two or more disk drives.
RAID level-10 | Four or more disk drives.
RAID level-1E0 | Six or more disk drives.
RAID level-50 | Six 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.

### See also

Selecting a RAID level (Performance tuning)