Backup and recovery functions

The volume-basis operation of DFSMShsm for non-SMS-managed volumes causes differences in how backup is performed. For non-SMS-managed volumes:
  • If automatic backup is in effect for the volume, all changed data sets that DFSMShsm can manage are backed up.
  • All data sets processed by a particular DFSMShsm host have the same backup frequency unless the frequency has been modified for that data set by a DFSMShsm command.
  • All data sets processed by a particular DFSMShsm host have the same number of backup versions, unless the number of backup versions has been modified for that data set by a DFSMShsm command.
In addition, you can specify the number of days to retain backup versions of non-SMS-managed data sets only by command parameters for the entire system complex.

A data set backed up from a non-SMS-managed volume can be recovered to an SMS-managed volume if the data set does not already exist, if SMS is active, and if the data set is indicated by the ACS routine to be SMS-managed.

Parent topic: DFSMShsm functions for non-SMS-managed volumes