| Mode |
Drive # |
Raid Configuration |
| |
1 |
2 |
3 |
4 |
JBOD |
RAID 0 |
RAID 1 |
RAID 0+1 |
RAID 1+0 |
RAID 5 |
| Capacity w/100GB Drives |
400 GB |
400 GB |
100 GB |
200 GB |
200 GB |
300 GB |
| 1 |
O |
O |
O |
O |
online |
online |
online |
online |
online |
online |
| Single drive failures |
| 2 |
O |
O |
O |
X |
fail |
fail |
online |
online |
online |
online |
| 3 |
O |
O |
X |
O |
fail |
fail |
online |
online |
online |
online |
| 4 |
O |
X |
O |
O |
fail |
fail |
online |
online |
online |
online |
| 5 |
X |
O |
O |
O |
fail |
fail |
online |
online |
online |
online |
| Two drive failures |
| 6 |
X |
X |
O |
O |
fail |
fail |
online |
online |
fail |
fail |
| 7 |
X |
O |
X |
O |
fail |
fail |
online |
fail |
online |
fail |
| 8 |
X |
O |
O |
X |
fail |
fail |
online |
fail |
online |
fail |
| 9 |
O |
X |
X |
O |
fail |
fail |
online |
fail |
online |
fail |
| 10 |
O |
X |
O |
X |
fail |
fail |
online |
fail |
online |
fail |
| 11 |
O |
O |
X |
X |
fail |
fail |
online |
online |
fail |
fail |
| Three drive failures |
| 12 |
X |
X |
X |
O |
fail |
fail |
online |
fail |
fail |
fail |
| 13 |
X |
X |
O |
X |
fail |
fail |
online |
fail |
fail |
fail |
| 14 |
X |
O |
X |
X |
fail |
fail |
online |
fail |
fail |
fail |
| 15 |
O |
X |
X |
X |
fail |
fail |
online |
fail |
fail |
fail |
| Four drive failures |
| 16 |
X |
X |
X |
X |
fail |
fail |
fail |
fail |
fail |
fail |
'X' means the drive failed, while 'O' means the drive is online.
In RAID 0+1, drives in pairs (1,2) and (3,4) are striped,
and then the pairs are mirrored.
In RAID 1+0 or 10, drives in pairs
(1,2) and (3,4) are mirrored, and then the pairs are striped.
|
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