At 16:23 -0500 on 05/03/2008, Tom Schmidt wrote about Re: SVC99:
I suspect that the problem your program is having has less to do with the SYSDSN enqueue that S99WTDSN was designed to cope with, and more to do with the SYSVSAM enqueue that Catalog management and VSAM use for proper serialization during the catalog compression processes. I do not recall any user control over that SYSVSAM intersect via SVC99.
Issuing a ENQ TYPE=TEST against SYSVSAM just before the SVC 99 would give an indication of a probable intersect problem (with the caveat that the test assumes that the ENQ status will stay the same until the SVC 99 is issued).
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