We have several servers installed Redhat AS 2.1
(update 3). I use "iostat -x 5" to check I/O
performance. It show some disks 100% utilize always.
I don't think it is correct. Does anyone know what
wrong it is and how to reset?
Output of "iostat -x 5":
avg-cpu: %user %nice %sys %idle
0.00 0.00 0.00 100.00
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s
avgrq-sz avgqu-sz await svctm %util
emcpowera
0.00 2.20 0.00 1.80 0.00 32.00
17.78 3620.00 0.00 5555.56 100.00
emcpowera1
0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
emcpowera2
0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
emcpowera3
0.00 2.20 0.00 1.80 0.00 32.00
17.78 600.00 0.00 5555.56 100.00
emcpowerc
0.00 0.00 0.00 0.00 0.00 0.00
0.00 660.00 0.00 0.00 100.00
emcpowerc1
0.00 0.00 0.00 0.00 0.00 0.00
0.00 350.00 0.00 0.00 100.00
sda 0.00 14.20 0.00 3.80 0.00 144.00
37.89 0.00 0.00 0.00 0.00
sda1 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sda2 0.00 11.00 0.00 1.40 0.00 99.20
70.86 0.00 0.00 0.00 0.00
sda3 0.00 3.20 0.00 2.40 0.00 44.80
18.67 0.00 0.00 0.00 0.00
sdb 0.00 3.20 0.00 2.40 0.00 44.80
18.67 0.00 0.00 0.00 0.00
sdb1 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdb2 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdb3 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdb4 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdb5 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdb6 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdb7 0.00 3.20 0.00 2.40 0.00 44.80
18.67 0.00 0.00 0.00 0.00
sdc 0.00 1.00 0.00 1.00 0.00 16.00
16.00 0.00 0.00 0.00 0.00
sdc1 0.00 1.00 0.00 1.00 0.00 16.00
16.00 0.00 0.00 0.00 0.00
sdf 0.00 0.00 0.00 0.80 0.00 17.60
22.00 8588474.59 0.00 12500.00 100.00
sdf1 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdf2 0.00 0.00 0.00 0.00 0.00 0.00
0.00 10.00 0.00 0.00 100.00
sdf3 0.00 0.00 0.00 0.80 0.00 17.60
22.00 8587094.59 0.00 12500.00 100.00
sdg 0.00 0.00 0.00 0.00 0.00 0.00
0.00 8589734.59 0.00 0.00 100.00
sdg1 0.00 0.00 0.00 0.00 0.00 0.00
0.00 8589414.59 0.00 0.00 100.00
sdh 0.00 0.00 0.00 1.00 0.00 14.40
14.40 8588224.59 0.00 10000.00 100.00
sdh1 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdh2 0.00 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00
sdh3 0.00 0.00 0.00 1.00 0.00 14.40
14.40 8586984.59 0.00 10000.00 100.00
sdi 0.00 0.00 0.00 0.00 0.00 0.00
0.00 80.00 0.00 0.00 100.00
sdi1 0.00 0.00 0.00 0.00 0.00 0.00
0.00 8589404.59 0.00 0.00 100.00
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