Explanation: MIGRATION is an optional parameter specifying whether DFSMShsm should prevent all space management processing or prevent only automatic space management processing. The MIGRATION parameter, without any subparameters, specifies that all space management functions are prevented. No more space management tasks are started.
| Subparameter | Explanation |
|---|---|
| AUTO | MIGRATION(AUTO) specifies that automatic volume and automatic secondary space management processing are prevented. No more automatic volume and automatic secondary space management processing tasks are started. You can still perform command space management. |
The point at which DFSMShsm stops space management processing is controlled by the ENDOFDATASET and ENDOFVOLUME parameters. WAIT-type command requests are failed, and NOWAIT command requests remain queued.
Defaults: If AUTO is not specified, automatic volume space management, automatic secondary space management, and command space management are prevented.