Hi Jeremy,

That is because QAD stores its data in the Progress database, which is VERY I/O write intensive because of the Progress before- and after-image logs.  That is why they do not want RAID5 as it sucks with high I/O writes.
You may give them RAID4 or RAID_DP without problems - trust me.  I have been involved in quite a few of the QAD implementations before.

The AIX admin is also still under misconception regarding the above - just correct him as well please.  :-)

Kind regards,

Wim Olivier
Senior Technical Support Analyst (Solaris, AIX, NetApp, Veritas, RedHat)
AL Indigo (Pty) Ltd.
Woodmead, Johannesburg, RSA
Tel:   +27 (0) 11 808 6300
Cell:  +27 (0) 82 655 3599
Fax:   +27 (0) 86 510 2227
e-mail:Wim.Olivier@alindigo.com



-----Original Message-----
From: owner-toasters@mathworks.com on behalf of Page, Jeremy
Sent: Wed 11/28/2007 23:02
To: NetApp list
Subject: QAD on NetApp

We are running an application called QAD that runs one of our
manufacturing plants. According to our pSeries administrator it can only
run on RAID1, does anyone have information about this? I am dubious but
want to be certain.

It's on a pSeries that would be FC connected to the filer.


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