Consider this RAID level... | If your array has... | ||
RAID level-0 |
One or more hard disk drives in an array.
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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.
Selecting a RAID level (Performance tuning)