John,
I'm using SMS managed tape libraries with multi-DSN output files (UNIT=AFF) and
I have code in our ACS dataclass routine that looks like this:
IF &ANYVOL = 'REF=ST' OR &UNIT = 'AFF=SMST' THEN
DO
SET &DATACLAS = &DATACLAS
EXIT
END
As I recall, both the ANYVOL and UNIT were necessary to catch all cases.
Cliff McNeill
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