z/OS MVS Programming: Workload Management Services
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Storage Housekeeping

z/OS MVS Programming: Workload Management Services
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Storage Housekeeping

The purpose of storage housekeeping is to decrease storage targets that are out of date or ineffective. Storage housekeeping will only reduce a target if it will not affect the ability of work to meet goals. There are four types of storage housekeeping.

time driven
Reduce target when the projected effect is small and the service class period will still easily meet goals
minimal effect
Reduce target slightly when the projected effect is very small
unassessable
Reduce target slightly when the projected effect cannot be determined but the service class period is meeting goals easily
slow mode
Reduce target slightly when the projected effect cannot be determined but keep the target close to the current allocation

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