RAID 0+1
This should NOT be confused with RAID 10
High Data Transfer Performance
RAID Level 0+1 requires a minimum of 4 drives to implement.
- Advantages
RAID 0+1 is implemented as a mirrored array whose segments are RAID 0 arrays- RAID 0+1 has the same fault tolerance as RAID level 5
- RAID 0+1 has the same overhead for fault-tolerance as mirroring alone
- Excellent solution for sites that need high performance but are not concerned with achieving maximum reliability
- Disadvantages
RAID 0+1 is NOT to be confused with RAID 10. A single drive failure will cause the whole array to become, in essence, a RAID Level 0 array- Very expensive / High overhead
- Very limited scalability at a very high inherent cost
- All drives must move in parallel to proper track lowering sustained performance