Dump and restore functions

The dump function for non-SMS-managed volumes is governed by parameters of the DFSMShsm commands, but it is performed the same way as for SMS-managed volumes. However, in addition to performing the automatic dump function for level 0 volumes, DFSMShsm also performs automatic dump for ML1 volumes.

A data set dumped from a non-SMS-managed volume can be restored 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 routines to be SMS-managed.

Rule: Because the ML1 volumes are not managed by SMS—even in an environment in which all level 0 volumes are SMS-managed—you must use non-SMS-managed volume parameters to perform automatic dump for ML1 volumes.