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