Carlos H. Reimer wrote:
avg-cpu: %user %nice %system %iowait %idle
50.40 0.00 0.50 1.10 48.00
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0.00 7.80 0.40 6.40 41.60 113.60 20.80
56.80 22.82 570697.50 10.59 147.06 100.00
sdb 0.20 7.80 0.60 6.40 40.00 113.60 20.00
56.80 21.94 570697.50 9.83 142.86 100.00
md1 0.00 0.00 1.20 13.40 81.60 107.20 40.80
53.60 12.93 0.00 0.00 0.00 0.00
md0 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
Are they not saturated?
What kind of parameters should I pay attention when comparing SCSI
controllers and disks? I would like to discover how much cache is
present in the controller, how can I find this value from Linux?
These number look a bit strange. I am wondering if there is a hardware
problem on one of the drives
or on the controller. Check in syslog for messages about disk timeouts
etc. 100% util but 6 writes/s
is just wrong (unless the drive is a 1980's vintage floppy).
