i would love to see how the application determines what level of RAID if any was on the mountpoint it was installed on.  :)

it's similar to oracle dba's who ask how many physical drives are on each mountpoint even after you explain the concept of aggregates and flexvols 500 times...

give him a mountpoint/lun and tell him it's RAID1.



--
Daniel Leeds
Manager, Storage Operations
Edmunds, Inc.
1620 26th Street, Suite 400 South
Santa Monica, CA 90404

310-309-4999 desk
310-430-0536 cell



-----Original Message-----
From: owner-toasters@mathworks.com on behalf of Matthew Zito
Sent: Wed 11/28/2007 2:02 PM
To: Page, Jeremy; NetApp list
Subject: RE: QAD on NetApp

I would be shocked, *shocked*, to find out that the application
technically requires RAID-1.  More likely, the vendor has specified that
they "recommend RAID-1", and the admin has taken it as gospel.  The
specification for RAID-1 is typically a performance-driven one, based on
negative feelings towards RAID-5, and not aware of the NetApp as a
RAID-4 option.  Worst comes to worst, you could use the AIX LVM, I
believe, to make a RAID-1 mirror on top of two NetApp luns, and just
waste the disk space.

Thanks,
Matt

-----Original Message-----
From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com]
On Behalf Of Page, Jeremy
Sent: Wednesday, November 28, 2007 4:03 PM
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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