What raid level is your 12h array executing at?

If you have less than 50% spare permanent capacity, you are operating at
raid level 5 - which could explain partly why your peformance may be worse
than expected.

Maintaining spare capacity of greater than 50% on your 12h will result in
the use of raid-level 1 - which typically performs much better in an MPE/iX
environment.

Another thing to look at. Did you reduce the number of disk spindles when
converting from your 987? If so, by how many?

There may well be other factors affecting the disappointing performance of
your 996.

BTW, do we get any free ice cream if we can help?

At 09:47 PM 2000-10-04 -0500, [log in to unmask] wrote:
>      After upgrading from 987/150 to 996/400, performance
>doesn't seem to be any better.  I went from a non-raid fast
>wide jamaice box on the 987 to a model 12h array.  Is the model
>12 known to be slow?  Shouldn't I see some improvement?  As far as
>memory goes, I went from 1.5G to 3.5G. Anybody?
>
>
>Sent via Deja.com http://www.deja.com/
>Before you buy.

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Gilles Schipper
GSA Inc.
HP3000 & HP9000 System Administration Specialists
300 John Street, Box 87651   Thornhill, ON Canada L3T 7R4
Voice: 905.889.3000     Fax: 905.889.3001
Internet:  [log in to unmask]
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