Re: RAID on Email Server

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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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