[CentOS] RAID on Email Server
Jerry Franz
jfranz at freerun.com
Fri Oct 10 18:21:25 UTC 2008
Matt wrote:
> Right now its running pretty good but here it is.
> 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 0.60 142.80 67.20 170.20 678.40 2292.80 339.20
> 1146.40 12.52 118.53 615.66 4.21 99.92
>
You have about 3 times more writing going on than reading. RAID1 isn't
going to do much for you. You might want to try four disks in a RAID10
instead. And put your mail folders and spool on partitions mounted using
'noatime'.
--
Benjamin Franz
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