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Vaughn's Site
| RAID Level: |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
10 |
53 |
0+1 |
RAID 10: Very High Reliability combined with High Performance  RAID Level 10 requires a minimum
of 4 drives to implement |
Characteristics/Advantages RAID 10 is implemented as a
striped array whose segments are RAID 1 arrays RAID 10 has the same fault tolerance as RAID level 1 RAID 10 has the same overhead for fault-tolerance as mirroring
alone High I/O rates are achieved by striping RAID 1 segments Under certain circumstances, RAID 10 array can sustain multiple
simultaneous drive failures Excellent solution for sites that would have otherwise gone with RAID 1
but need some additional performance boost |
Disadvantages Very expensive / High overhead All drives must move in parallel to proper track lowering sustained
performance Very limited scalability at a very high inherent cost |