After migration to CA Common Services r12 and z/OS 1.12 we get messages like:
RZX7.CAI.PRODUCTS.PPOPTION DATA SET NOT UNALLOCATED DURING CLOSE RC 04
However, these message only show up if parameter files are concatenated. Are these messages a result of a change within CA Common Services or within z/OS 1.12?
The IEC988I messages come from FREE=CLOSE of the ENFPARM DD statement, because since z/OS 1.12 all concatenated datasets get this message when the dataset is CLOSED and FREE=CLOSE is specified in the close parameters.
The IEC988I message can be safely ignored as it is informational only.