Re: DIsk conversion question

I think your going to have to look at how you have them defined on the EMC
side. 60 drives defined between these 3?? So each one as 20?? You mention
LPAR's, are all 3 of these via wrkdsksts on just 1 LPAR. What OS version,
current on PTF's.

Maybe this might help you out.

http://www.linkedin.com/groups/IBM-I-in-SAN-Storage-162505.S.42026108?_mSplash=1


On Mon, May 21, 2012 at 1:26 PM, Midrange Information <ldwopt@xxxxxxx>wrote:

This is a P720 LPAR with the disk drives from the EMC san

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jack Kingsley
Sent: Monday, May 21, 2012 11:25 AM
To: Midrange Systems Technical Discussion
Subject: Re: DIsk conversion question

Are you talking with I on I with LPAR's with the host owning the drives or
a
EMC or DS8000 SAN or ??

On Mon, May 21, 2012 at 11:44 AM, <ldwopt@xxxxxxx> wrote:

I am confused when converting direct attach to a SAN system

Our old system was had 12 127 15k rpm drives. We converted to an
LPARed system with 3 Luns.
#1 572000M 7,200 rpm
#2 191000M 7,200 rpm
#3 763000M 7,200 rpm

I don't have the exact break down but there is supposed to be 60
drives allocated to the 3 luns.When we tried a test conversion this
past weekend a disk bottle neck occurred during part of the initial
start up when selected files were being reorged.

My thought on correcting the problem would be to:
1. Split the 3 luns into maybe 6 or more smaller units 2. Recreate the
luns using 15k drives 3. Recreate the drives into 6 luns with 15k
drives

Am on the correct track\?
Is there other option to consider?

TIA

Dave Willenborg
FNTS semi-retired
Omaha NE


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