Re: Moving DASD between LPARs

They can be dynamically reassigned if you build them that way in the first place. IASP is the keyword to look up.

Bill Epperson Jr.
Systems Communications Analyst
Memorial Health System
(719) 365-8831





Jim Essinger <dilbernator@xxxxxxxxx>

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02/16/2010 11:05 AM
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Re: Moving DASD between LPARs
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Thanks all - That's what I was thinking needed to be done, but I was hoping
that the disks could be moved while the system was active. I guess I was
hoping for too much. ;^)

Jim


On Tue, Feb 16, 2010 at 10:25 AM, Pete Massiello <pmassiello-ml@xxxxxxxxxxxx

wrote:

You need to IPL the partition to DST and remove the units now from the ASP.
Don't touch the raid set.

Then do a PWRDWNSYS restart(*NO) of the partition.

Now, change the partition profile to not have the RAID Controller, and for
the LPAR they are going to change that profile to add the disk controller.

Now, activate the partition we just took down (The one which is losing the
disks) and it will come up without the disk controller (and therefore
without the disks).

Then, at some point, PWRDWNSYS restart(*NO) of the partition they are going
to.

Activate that partition, and you should see 4 non configured disks (With
RAID fully configured). Now, just add them to the ASP. Then you can run a
STRASPBAL while the system is up.

Pete

Pete Massiello
iTech Solutions
http://www.itechsol.com

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-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jim Essinger
Sent: Tuesday, February 16, 2010 11:36 AM
To: Midrange Systems Technical Discussion
Subject: Moving DASD between LPARs

Greetings!

I have 4 disks that were in one LPAR, and were moved to the TEST LPAR
prior
to my starting here, and now we want to move them back to the original
LPAR> I ran the STRASPBAL command marking those drives with *ENDALC, then
I
ran the STRASPBAL *MOVDTA command. They are now at 1.2 or 1.3 % used.
They
are RAID protected.

STRSST shows them as follows;

Parity Resource Hot Spare
Set ASP Unit Type Model Name Status Protection
1 573D 001 DC04 RAID-5 N
1 3 4328 074 DD015 Active
1 4 4328 074 DD014 Active
1 1 4328 074 DD016 Active
1 2 4328 074 DD013 Active
2 571B 001 DC07 RAID-5 N
1 6 4328 074 DD018 Active
1 5 4328 074 DD017 Active
1 7 4328 074 DD019 Active
1 8 4328 074 DD020 Active

I want to remove parity set 2 - disk unites 5,6,7 and 8 from the ASP, make
them available to the other LPAR and add them to the ASP there.

What steps do I need to do now? I searched the archives, and IBM
InfoCenter
and didn't see the answer I need, although I'm sure it is there. Do I have
to IPL the LPAR to dedicated Service Tools to remove them from the ASP now?

The LPARs are HMC managed. The HMC is V7R3.3.0.

Thanks!

Jim

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