不同 RAID 的 Write IO penalty
RAID | IO penalty |
1 | 2 |
5 | 4 |
6 | 6 |
10 | 2 |
資料來源:Understanding RAID Penalty
IOPS(1/(seek+latency)=IOPS)
Device | IOPS |
7,200 rpm SATA drives | 75 – 100 IOPS |
10,000 rpm SATA drives | 125 – 150 IOPS |
10,000 rpm SAS drives | 140 IOPS |
15,000 rpm SAS drives | 175 – 210 IOPS |
資料來源:IOPS