To: IBM-MAIN@bama.ua.edu
Sent: Thursday, March 27, 2008 9:29 AM
Subject: EMC Dasd and Performance Issues
I am supporting the DMX3 Disk Array from EMC. We have been experienceing
some performance issues with our Timefinder Snap process.
According to EMC this issue occurred due to microcode level
No, we share the frame with the mid range (Unix) side of the shop. However,
we do not use the same disks in the box, Mainframe dasd is mapped on
separate volumes from the Mid range dasd; I am told there is no
intermingling...
Lizette
Not sure of our microcode level,.. But is your DMX used
.
(not complaining about EMC Disk. It has serviced us well)
gabe
-Original Message-
Subject: Re: EMC Dasd and Performance Issues
No, we share the frame with the mid range (Unix) side of the shop.
However, we do not use the same disks in the box, Mainframe dasd is
mapped on separate volumes
I am supporting the DMX3 Disk Array from EMC. We have been experienceing some
performance issues with our Timefinder Snap process.
According to EMC this issue occurred due to microcode level 5671. We did this
upgrade 18 months ago and just now saw this issue and got it resolved.
I am just
Liz,
just how were the SNAPs affected ? do you have SRDF/A involved ?
- ravi.
On Thu, 27 Mar 2008 09:29:51 -0400, Lizette Koehler
[EMAIL PROTECTED] wrote:
I am supporting the DMX3 Disk Array from EMC. We have been experienceing
some performance issues with our Timefinder Snap process.
We are snapping 198 volumes. For the past several months it has been taking
20 mins to snap. As of Feb 08 it took 40 mins to snap.
After EMC cleaned up some table it now runs in 14 Mins.
SRDF/A is not involved. We are snapping a source volume to another volume
on the string we call SNPxxx.
Not sure of our microcode level,.. But is your DMX used only for
Mainframe storage? We had an instance where our P Series processors
effected our mainframe storage performance.
--cut
I am supporting the DMX3 Disk Array from EMC. We have been
experienceing some performance issues with our
7 matches
Mail list logo