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RAID 10

RAID10

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.

Recommended Applications:

  • Database server requiring high performance and fault tolerance.
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