On Mon, 16 Nov 2020 10:23:57 -0800, Charles Mills wrote: >SMF Type 42 subtypes 20 and/or 21 will give you that information: 21 for >straight member delete, and 20 for PDSE directory re-initialize. I don't >think type 17 is relevant to this problem. > >Be aware that it is possible for a malicious programmer to defeat it: if a >program opens a PDS as a BSAM dataset and manipulates the directory directly >that will not be reflected in SMF Type 42, although SMF 15 would show that a >PDS was closed for xSAM output -- and there would be no corresponding SMF >Type 42. Although I suppose it might be possible to defeat that check also. > Is PDSE more robust? I believe one can open a PDSE as a BSAM data set and read but not write the directory directly (it fakes it?) And IBM provides some security-by-obscurity by concealing PDSE details (except for a high price).
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