The BACKVOL command can be used to request that DFSMShsm back up
eligible data sets from specific volumes or from all primary volumes,
or that it dumps all the data sets from the specified volumes. When
backing up non-SMS-managed volumes, you can specify, on the command,
the type of backup to be done. You can choose to back up the following:
- Data sets that have not been backed up for a specified number
of days (FREQUENCY)
- Data sets that have changed since the last backup (INCREMENTAL)
- All data sets on a volume (TOTAL).