OPEN support

RMM ADDVRS DSNAME('OPEN') JOBNAME(LAURAN) LASTREFERENCEDAYS COUNT(5)

RMM ADDVRS DSNAME('MOWI.**') JOBNAME(OPEN) DAYS COUNT(99)

When VRSEL processing finds a data set that is subject to OPEN processing, it first attempts to match the data set to the special OPEN vital record specifications and uses the exact same matching order and selection rules as it does for regular data sets. The matching scope is limited to those vital record specifications specified with OPEN job names and data set names. Thus, both a primary and a secondary matching vital record specification is possible , as long as they are not the same. If both vital record specifications found are the same, then they are used only as the primary vital record specification. Open data sets that do not match to the OPEN VRS are matched to other vital record specifications, as normal. . If you need to use the OPEN job names as non-special values, you have to use generic job names in the vital record specification, such as OPEN*.

DFSMSrmm implements the OPEN vital record specifications as follows:

Note: DFSMSrmm does just only one of the following, but in this sequence.

If the DSNAME mask is 'OPEN', the data set name mask of '**' is used. The JOBNAME mask is used as it is.
If the JOBNAME mask is 'OPEN', the job name mask of '*' is used. Also, no JOBNAME mask is used in case any of the data sets do not have a job name.

Thus, it is possible to define multiple vital record specifications that result in the same masks being used, or that may not be used as expected. For example,

DSNAME('OPEN') without job name and DSNAME('**') JOBNAME(OPEN) are equivalent, but the latter is used by DFSMSrmm. EDG2219I issued for the former because of key sequence.
DSNAME('OPEN') JOBNAME(*) and DSNAME('**') JOBNAME(OPEN) are equivalent, but the latter is used by DFSMSrmm filter matching processing. The former is ignored, because of key sequence. Matching data sets show that OPEN vital record specification have been used.
DSNAME('OPEN') JOBNAME(OPEN) results in a mask of DSNAME('**') JOBNAME(OPEN) that only matches cases where the job name actually is 'OPEN'.

VRSEL processing issues message EDG2219I if any conflicting definitions are created.