Hello,
I have a server is running at 100% util:
Code:
# iostat -x 1
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 77.00 1.00 409.00 8.00 3664.00 8.96 144.25 313.20 2.44 100.20
avg-cpu: %user %nice %system %iowait %steal %idle
0.75 0.00 0.00 49.12 0.00 50.13
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 61.00 7.00 402.00 56.00 3656.00 9.08 144.77 370.45 2.45 100.10
avg-cpu: %user %nice %system %iowait %steal %idle
1.00 0.00 0.25 48.75 0.00 50.00
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 125.00 4.00 350.00 32.00 3744.00 10.67 144.23 389.89 2.83 100.10
avg-cpu: %user %nice %system %iowait %steal %idle
8.25 0.00 0.50 47.00 0.00 44.25
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util
cciss/c0d0 0.00 276.00 20.00 363.00 160.00 4608.00 12.45 104.93 431.57 2.61 100.10
avg-cpu: %user %nice %system %iowait %steal %idle
0.00 0.00 0.25 24.75 0.00 75.00
Now I know there is disk utilization issue but how do I pinpoint the cause? What command can I use to find the high disk utilization culprit?
Thanks.