On Wed, 15 Aug 2007 21:50:21 +0000, Ted MacNEIL wrote:
>>PDS's have the reclaiming space issue, PDSE's should not.
>
>With a PDSE when a member is deleted, or re-written to a larger block, the
>unused space it had occupied becomes available for immediate usage by the next
>write (STOR) activity.
>
>Not entirely accurate.
>If the member(s) are still in use the space will not be available.
>This can run up to doubling the space.
>
I believe I can concoct even a worse case:
Job A does a FIND for every member
Job B replaces every member before Job A CLOSEs
Job C does a FIND for every member
Job D replaces every member before Jobs A and C CLOSE
etc.
I see no upper bound.
-- gil
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