Hello,
I have a raid device /dev/md0 based on 4 devices sd[abcd].
When I write 4GB to /dev/md0, I see following output from iostat...
Ques:
Shouldn't I see write/sec to be same for all four drives? Why does
/dev/sdd always have higher value for BlksWrtn/sec?
My strip size is 1MB.
thanks for any pointers...
avg-cpu: %user %nice %system %iowait %steal %idle
0.02 0.00 0.34 0.03 0.00 99.61
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 1.08 247.77 338.73 37478883 51237136
sda1 1.08 247.77 338.73 37478195 51237136
sdb 1.08 247.73 338.78 37472990 51245712
sdb1 1.08 247.73 338.78 37472302 51245712
sdc 1.10 247.82 338.66 37486670 51226640
sdc1 1.10 247.82 338.66 37485982 51226640
sdd 1.09 118.46 467.97 17918510 70786576
sdd1 1.09 118.45 467.97 17917822 70786576
md0 65.60 443.79 1002.42 67129812 151629440
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