Problem: a lot of non-VSAM datasets on some non-SMS volume, most of them are overallocated, that mean I want to release the space.
However I want to keep approx. 10% of free space within 1st extent.
I know, there is secondary allocation for that, however the requirement is to keep this 10% within current extent, especially because part of the datasets are single-extent.

Unfortunately ADRDSSU allows to RELEASE the space, but there is no parameter to make any reserve in the allocation, even for no-secondary datasets.

Any clue?

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Radoslaw Skorupka
Lodz, Poland

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