One way would be to define a third LPAR. Assign a weight to the new LPAR
equivalent to 4/32 of the total of all the LPAR weights. Cap this new
LPAR. Put a looping task into this LPAR. PR/SM will then ensure that no
more and no less than 4/32 of the total CPU is wasted running a silly loop.
Whatever's not used by the loop is available to the other LPARs. Warn
capacity planners and resource billing people that there's a "soaker"
workload.
If I understood your requirements correctly, you want two LPARs to have
"equal opportunity" to use a total of 28 MSU out of a possible 32.
All of the other capping schemes that I'm aware of limit an LPAR (or a
single service class in an LPAR) to "no more than". The catch is that,
even if the rest of the 28 MSU were idle, the capped workload would not be
able to use it.
Tom
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Jón Vidar
Gunnarsson
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Discussion List Subject
<[EMAIL PROTECTED] Capping in Z890
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05/05/2006 06:23
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Please respond to
IBM Mainframe
Discussion List
<[EMAIL PROTECTED]
.EDU>
Hello
I have been asked to CAP my Z890 so it cant use more that 28 MSU.
My machine is of total capicity 32 MSU.
I have been looking at lpar capping, but I would likne to cap the
whole machine using max 28 MSU.
I have only two lpar running, Can I please have comment on the best
way got fulfill my goal. ??
Best Reg
Jon
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