The subsystem can implement several different levels of RAID technology. RAID levels supported by the subsystem are shown below.
RAID | Description | Min | |
Level | Drives | ||
| |||
0 | Block striping is provide, which yields higher performance than with | 1 | |
| individual drives. There is no redundancy. |
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1 | Drives are paired and mirrored. All data is 100% duplicated on an | 2 | |
| equivalent drive. Fully redundant. |
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3 | Data is striped across several physical drives. Parity protection is | 3 | |
| used for data redundancy. |
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5 | Data is striped across several physical drives. Parity protection is | 3 | |
| used for data redundancy. |
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|
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6 | Data is striped across several physical drives. Parity protection is | 4 | |
| used for data redundancy. Requires N+2 drives to implement |
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| because of |
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0 + 1 | Combination of RAID levels 0 and 1. This level provides striping | 4 | |
| and redundancy through mirroring. |
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Introduction |