Retaining multifile format backup tapes

The example in Figure 1 shows how to keep multifile format backup tapes. Multifile format applies to reels and not to cartridges.

Figure 1. Keeping multifile format backup tapes

RMM ADDVRS DSNAME('bprefix.BACK.T%%%%%%.**') -
    COUNT(1) CYCLES

bprefix: Specifies the DFSMShsm-defined backup and dump data set prefix.
%: Represents one character of a data set name.
**: Represents zero or more qualifiers of a data set name.
COUNT(1): Specifies to keep a single cycle. There should never be more than one cycle as DFSMShsm generates the data set names by using dates and times. COUNT(99999) can be specified and provide the same results.
CYCLES: Specifies that DFSMSrmm retain data sets based on cycles or copies of a data set.