Overview of workload prioritization

When the combined 4HRA for managed LPARs and capacity groups exceeds the specified MSU limit, CPCMSU limit, or cost limit, at least one LPAR or capacity group is subject to capping. iCap allows LPARs and capacity groups running high importance workloads to gain additional MSUs at the expense of those running low importance workloads.

The order in which managed LPARs and capacity groups receive MSUs can be determined in the following ways:

Related topic

How-iCap-works

  • A combination of priority and high importance work
    iCap considers the priority of an LPAR or capacity group and the amount of high importance work running on the LPAR or capacity group. iCap uses Workload Manager (WLM) Tuning to collect importance data.
    For more information about using the WLM Tuning parameter, see Scenarios.
  • Priority only
    iCap considers only the priority of an LPAR or capacity group, without using WLM importance data.


 

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