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RAID Level: |
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RAID 10: Very High Reliability combined with High Performance 
RAID Level 10 requires a minimum of 4 drives to implement |
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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 |
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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 |
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