How to be notified when softcap is set?

David Andrews

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Mar 29, 2010, 11:23:18 AM3/29/10

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I'm experimenting with LPAR group capping (baby steps). How am I
notified that the 4h average has exceeded the group cap and softcapping
has begun? Is there a console message or event or specific SMF record?

--
David Andrews
A. Duda and Sons, Inc.
david....@duda.com

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Al Sherkow

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Mar 29, 2010, 11:41:06 AM3/29/10

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David --

There are no z/OS (WLM, RMF) messages when the cap is reached.

You can monitor this with RMF III from the CPC screen. I don't know about
the other monitors, but I expect they would have a similar capability.

Al Sherkow
I/S Management Strategies, Ltd.
Consulting Expertise on Capacity Planning, Performance Tuning,
WLC, LPARs, IRD and LCS Software
Seminars on IBM SW Pricing, LPARs, and IRD
Voice: +1 414 332-3062
Web: www.sherkow.com

Kelman, Tom

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Mar 29, 2010, 11:54:37 AM3/29/10

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Yes, OMEGAMON also has the ability to monitor the 4HRA when the LPAR is
soft capped.

In the SMF Type 70-1 record, the variable SMF70MSU has the defined
capacity for the LPAR and SMF70VPF is a flag where one of the bits
indicates the partition capping is enabled. However, I don't know if
that means that you've hit the cap, or just that capping is turned on.

If you run Barry Merrill's MXG code he has a couple of variables in the
TYPE70 dataset (and related datasets) that help with determining if
you've hit the cap. I'm sure other SMF analysis tools, such as MICS,
have the same.

Tom Kelman
Enterprise Capacity Planner
Commerce Bank of Kansas City
(816) 760-7632

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PeD

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Mar 29, 2010, 3:15:38 PM3/29/10

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maybe you can adapt this piece of code including a sleep, a recurrent
test, then an alert to be sent where you want.

Cheers

Pierre

/* REXX
*/
/* TRACE ?R
*/

CVT =
C2D(STORAGE(10,4))
RMCT = C2D(STORAGE(D2X(CVT+604),4)) /* POINT TO RMCT
*/
RCT = C2D(STORAGE(D2X(RMCT+228),4)) /* RESOURCE CONTROL TBL
*/
RCTLACS = C2D(STORAGE(D2X(RCT+196),4)) /* 4 HR MSU AVERAGE
*/
RCTIMGWU = C2D(STORAGE(D2X(RCT+28),4)) /* IMAGE DEFINED MSUS
*/
RCTCECWU = C2D(STORAGE(D2X(RCT+32),4)) /* CEC MSU CAPACITY
*/
SAY 'THE DEFINED MSU CAPACITY FOR THIS LPAR IS'
RCTIMGWU'.'
SAY 'THE 4 HOUR MSU AVERAGE USAGE IS'
RCTLACS'.'

EXIT
0