Off-topic: do consider that DEFRAGs these days in z/OS, other than increasing first-extent sizes, is pretty much unnecessary, what with DFSMS and 3rd party software like STOPX37. Also, I would encourage you to code a higher FRAGI parameter to cut-back on the number of excessive defrags that re-claim even 1 extent.
Scott Barry
SBBWorks, Inc.
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