Conor Wynne wrote:
> I would not rely on hdparm tests, they are not valid. They dont take into
> account disk cache etc. Never mind controller cache if applicable.
The buffered disk reads figure is useful as a rough indicator though,
and in this case it seems the array is really slow.
Bog standard Maxtor SATA (6Y120M0): ~49MB/sec
RAID-1 of decent SAS drives in a newish DELL server: ~100MB/sec
18MB/sec is low.
Have you tested the bare drives or a RAID-0 configuration?
If you can take the drives out the case and stick them in
a regular (x86) machine you should be able to see if it's the
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