How Fast and Robust Is Your Storage? - Professional SQL Server 2005 Performance Tuning - page 446

Table 12-7: Two-Disk Test E Results (continued)

Read/Write Sequential/Random Block Size IOPS MB/Sec Avg Latency

W random 256 150.6 37.65 6

W random 512 102.7 51.35 9

W random 1024 73.4 73.4 13

W random 2048 33.84 67.69 29

W random 4096 20.23 80.94 48

W random 8192 11.36 90.91 87

R random 8 133.9 1.04 6

R random 16 124.6 1.94 7

R random 32 114.7 3.58 8

R random 64 110.5 6.9 8

R random 128 100.8 12.6 9

R random 256 90.3 22.57 10

R random 512 66.2 33.1 14

R random 1024 39 39 25

R random 4096 16.14 64.59 61

R random 8192 10.1 80.8 98

R sequential 8 5552.8 43.38 0

R sequential 16 4082.5 63.78 0

R sequential 32 2593.4 81.04 0

R sequential 64 1555.6 97.22 0

R sequential 128 789.7 98.71 1

R sequential 256 411.2 102.8 2

R sequential 512 205 102.5 4

R sequential 1024 102.3 102.3 9

Continued