AUTOMIGRATION and NOAUTOMIGRATION: Specifying whether the primary volume is eligible for automatic volume space management

Explanation: AUTOMIGRATION and NOAUTOMIGRATION are mutually exclusive, optional subparameters of the PRIMARY parameter specifying whether the data sets on the primary volume are eligible for automatic volume space management.
AUTOMIGRATION
specifies that the data sets on the primary volume are eligible for automatic volume space management.
NOAUTOMIGRATION
specifies that the data sets on the primary volume are not eligible for automatic volume space management.

Defaults: If you are adding a volume to DFSMShsm, the default is AUTOMIGRATION. If you are changing the attributes of a volume and do not specify either subparameter, the volume space management status is not changed.

Note: In a multiple-DFSMShsm-host environment, you can add the same volume to different DFSMShsm hosts. When you do that, you can also assign to that volume a different automatic space management attribute in each DFSMShsm host.