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Cool.  Lets say they are in different ASP's, but the date is far from
critical.  What advantage do they get now?  Is it just some performance?

Thanks, Larry

Sorry about the subject slip!

Larry Ketzes
iSeries Senior System Administrator
American Life Insurance Company

One ALICO Plaza
600 King Street
Wilmington, DE 19801
Phone: 302-594-2146
Mobile: 302-559-1631

Fax: 302-830-4524


Email: larry.ketzes@xxxxxxx




-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Chris Bipes
Sent: Thursday, February 01, 2007 10:02 AM
To: Midrange Systems Technical Discussion
Subject: New DASD configuration

First of all please change the subject line when changing the subject of
the message.  I would not mirror some drives and raid-5 others unless
they were in separate ASP's.  Each ASP should have like drives with like
configurations.  It can really hurt performance if you start mixing
drive speed, size, and raid configurations.

Christopher Bipes
Information Services Director
CrossCheck, Inc.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Ketzes, Larry
Sent: Thursday, February 01, 2007 5:16 AM
To: Midrange Systems Technical Discussion
Subject: RE: HMC

If someone was looking for good performance, but has been running into
some dasd issues (running out of space), they decided to buy more dasd.
        No problem there, and they are running at Raid-5.  What
advantage do they get by configuring their new dasd at Raid-1
(mirroring)?  Wouldn't that be a waste if they are already at Raid-5,
and dasd has been an issue?



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