Yes....we set it to 2000 last week, and saw a reduction in Uncaptured.
(in fact, this APAR was created in part due to some excellent work by our
capacity & performance guy's, who saw a marked increase in Uncaptured when
we recently went to z9's, and wouldn't accept IBM's answer that it was
WAD).
Cheers...Jason.
"Richards.Bob"
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.EDU> SRM Flash 10526 - Workaround
provided until APAR OA18452 closes
22/10/2006 00:32
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http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/FLASH10526
Anyone else with z9EC boxes catch this flash out on Techdocs and try the
workaround yet?
For now, it conditionally recommends adding the RMPTTOM keyword with a
value of 2000 to the IEAOPTxx member (wherever you have it in your
PARMLIB concatenation). See abstract below:
Abstract: z/OS Performance on IBM System z9 has reported a drop in z/OS
capture ratio after migration to a 2094 EC processor. The impact on
capture ratio has been traced to the frequency of SRM timer intervals.
This flash describes findings regarding the SRM timer interval and its
possible impact on captured time. The flash provides information and
recommendations for z/OS tuning.
Bob Richards
VP, Enterprise Technologist
Suntrust Banks, Inc
(404) 575-2798
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Seeing beyond money (sm)
National Australia Bank Ltd - ABN 12 004 044 937
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