Since DFSMSdss does not invoke SMS to select the target SMS volume
for a physical data set restore, DFSMShsm selects the final target
volume and passes that volume to DFSMSdss for a data set restore from
a physical dump copy. The order of precedence of DFSMShsm target volume
selection is:
- The source volume serial number of the dump copy, if FROMDUMP(DUMPVOLUME(volser)) is specified for a multiple-volume data
set
- The volume serial number to which the target SMS data set is currently
cataloged
- The volume serial number of the TOVOLUME parameter specified on
the RECOVER command
- The volume serial number of the FROMVOLUME parameter specified
on the RECOVER command
- The volume serial number to which the target non-SMS data set
is currently cataloged
- The source volume serial number of the dump copy, if FROMDUMP(DUMPVOLUME(volser)) is specified on the RECOVER command
- The source volume serial number of the incremental backup version
- The volume serial number to which the original data set is currently
cataloged, if the NEWNAME data set is not currently cataloged and
an incremental backup version is not available
If the source and selected target device types are not similar,
or if the target data set and the target volume are incompatible (that
is, one is SMS managed and the other is non-SMS managed), DFSMShsm
fails the restore of the data set from the dump copy. If this happens,
you may be required to specify the target volume, either by cataloging
the target data set or by using the TOVOLUME parameter of the RECOVER
command.