Hello Ewan

On Dec 3, 2012, at 5:06 PM, Ewan Milne <emi...@redhat.com> wrote:

>> 
> 
> It sounds like your drive write cache is disabled, 7200RPM is 120
> revolutions/sec, and you are getting 7747584 / 1024 / 63.59 = ~119 IO/s
> I believe the write cache is enabled by default on SATA drives, which
> would explain the difference.

You were exactly right.  Thank you!

A quick "sdparm -S -set=WCE <dev>" and I was back to where I expected.

Thanks again,
-Greg
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