RE: Performance Impact of going from 2 parity drives to 4 parity drives in a 4-disk RAID set

From: Jones, John (US) <John.Jones@xxxxxxxxxx>
Subject: RE: Performance Impact of going from 2 parity drives to 4 parity drives in a 4-disk RAID set
To: "Midrange Systems Technical Discussion" <midrange-l@xxxxxxxxxxxx>
Date: Friday, August 22, 2008, 6:54 PM
What generation hardware was that?

--
John A. Jones, CISSP
Sr. Analyst, Global Information Security
Jones Lang LaSalle, Inc.
Voice: +1.630-455.2787
FAX: +1.312.601.1782
Email: john.jones@xxxxxxxxxx


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of jim t
Sent: Thursday, August 21, 2008 5:53 PM
To: Midrange Systems Technical Discussion
Subject: Re: Performance Impact of going from 2 parity
drives to 4
paritydrives in a 4-disk RAID set

When I first saw your question I had to ask myself why you
would go thru
all this work. When I worked for an AS400 maintenance
company I use to
have some free time to play around on different systems.
I did a
performance test and found no performance benefit.

If it were me I would not waste my time.


Jim


This email is for the use of the intended recipient(s)
only. If you have
received this email in error, please notify the sender
immediately and then
delete it. If you are not the intended recipient, you must
not keep, use,
disclose, copy or distribute this email without the
author's prior
permission. We have taken precautions to minimize the risk
of transmitting
software viruses, but we advise you to carry out your own
virus checks on
any attachment to this message. We cannot accept liability
for any loss
or damage caused by software viruses. The information
contained in this
communication may be confidential and may be subject to the
attorney-client
privilege. If you are the intended recipient and you do not
wish to receive
similar electronic messages from us in the future then
please respond to the
sender to this effect.

--
This is the Midrange Systems Technical Discussion
(MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit:
http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.