Response to "what am I trying to do?", I'm working on a yearly performance &
capacity review, and saw many many occasions that CPU overshoot the CAP line
about 3%. And I try to figure this out.

Thanks all, will check the PR/SM manual for the 1~3% saying.
On Thu, Nov 4, 2010 at 11:49 PM, Al Sherkow <a...@sherkow.com> wrote:

> That 3% is not unexpected. WLM works with PR/SM to implement the cap. WLM
> does the math and PR/SM does the actually "capping". If you read the PR/SM
> planning guides (as Peter referenced) you'll see that PR/SM manages LPARs
> to +-
> 3 percent.
>
> I believe that WLM does the calculation to account for the possible MINUS
> 3%. If
> you were trying to cap at 100 MSUs and you only got 97 MSUs while paying
> for
> 100 you would be upset. If you pay for 100MSUs and get 3 Bonus MSUs you are
> a
> satisfied customer. (I chose 100 MSUs to make the math easy)
>
> 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
>
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-- 
Cobe Xu

Best Regards
-----------------------------------------------------------
zOS Performance & Capacity Analyst
E2E Performance Analyst
Email: cob...@gmail.com
-----------------------------------------------------------

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