Don O'Neil wrote:
[ ... ]
> Does this seem accurate? Should I only be seeing 4.7 MB/second throughput or
> is raidtest just not a good way to measure peak throughput?
> 
> Any thoughts would be appreciated.

It does not astonish me that you get 5 MB/s on a RAID-5 config, although if you
used SCSI and/or a real HW RAID-5 controller with significant cache (ie, 64+ MB)
that would help the performance by quite a bit.

Use RAID-5 for read-only or read-mostly situations and you'll be better off; use
RAID-10 for write-heavy filesystems instead.

-- 
-Chuck
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