RAID 10: Very High Reliability combined with High Performance
RAID 10:非常高可靠性与高性能的组合
Characteristics/Advantages
特征与优点
1. RAID 10 is implemented as a striped array whose segments are RAID 1 arrays
RAID 10 用了RAID 1 的带区阵列
2. RAID 10 has the same fault tolerance as RAID level 1
RAID 10 与 RAID 1有相同的容错性
3. RAID 10 has the same overhead for fault-tolerance as mirroring alone
RAID 10 和镜像比有相同的开销
4. High I/O rates are achieved by striping RAID 1 segments
传输速度比RAID 1快
5. Under certain circumstances, RAID 10 array can sustain multiple simultaneous drive failures
某些情况下,RAID 10阵列在多个硬盘故障的情况下仍然能正常工作
6. Excellent solution for sites that would have otherwise gone with RAID 1 but need some additional performance boost
替换RAID1的最佳方案
Disadvantages
缺点
7. Very expensive / High overhead
很贵
8. All drives must move in parallel to proper track lowering sustained performance
所有硬盘并行运行降低了持续的性能
9. Very limited scalability at a very high inherent cost
Recommended Applications 推荐用途
Database server requiring high performance and fault tolerance
数据库服务器需要高性能、极低的故障率
RAID 10 需要最少4个硬盘才能实现