Absolute group capping

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Absolute group capping provides an optional absolute capacity setting for a group of logical partitions specified in absolute processor capacity (for example, 2.5 processors) in terms of cores. This setting is specified independently by processor type and provides an upper limit on the processor type in the group of partitions at this capacity.

Note: There are rare and very brief instances where it is possible for the cap value to be exceeded by as much as 3.1%. However, these instances are brief enough that they are not noticeable by any operating system or program and they will not result in the overall cap value being exceeded.

The shared partitions processing weights still dictate the logical partition priorities compared to other shared logical partitions.

Absolute group capping is most effective for absolute caps higher than what the collective partition's weights relative to other logical partitions capacity would deliver.

Absolute group capping is ideal for processor types and operating systems that WLM does not manage. It is not meant as a replacement for group capacity for z/OS.