Hi folks
I met a strange scenario here. i have a 4 sata disk raid0. i ran dd
write with 512K request size and got this.
it looks like 1 disk has particular low utilization compared with
others.
any idea? thanks!
ming
-----------------------------------------
avg-cpu: %user %nice %sys %iowait %idle
0.00 0.00 15.84 6.44 77.72
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
hda 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sda 4648.51 0.00 309.90 0.00 39667.33 0.00 19833.66
0.00 128.00 0.91 2.95 2.95 91.49
sdb 4648.51 0.00 309.90 0.00 39667.33 0.00 19833.66
0.00 128.00 0.90 2.90 2.90 89.90
sdc 4648.51 0.00 309.90 0.00 39667.33 0.00 19833.66
0.00 128.00 0.25 0.79 0.79 24.55
~~~~~~~~
sdd 4646.53 0.00 311.88 0.00 39667.33 0.00 19833.66
0.00 127.19 0.95 3.03 3.03 94.65
md0 0.00 0.00 19833.66 0.00 158669.31 0.00 79334.65
0.00 8.00 0.00 0.00 0.00 0.00
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