Explanation: DUMP is an optional parameter that first causes DFSMShsm to establish a Fast Replication relationship between the source and target volumes. When all relationships are successfully established, DFSMShsm starts dumping the target DASD copies to tape. If the copy pool is defined with VERSIONS=0, DFSMShsm withdraws the source and target relationship after creating the dump copies for the source volume. For a copy pool defined with VERSIONS not equal to zero, the hardware automatically withdraws the relationship as the background DASD copies finish.
| Subparameter | Explanation |
|---|---|
| RETURNCONTROL | DUMP RETURNCONTROL specifies when DFSMShsm is to return control to the application or user for WAIT type requests. |
| Subparameter | Explanation |
|---|---|
| DUMPEND | RETURNCONTROL(DUMPEND) specifies to DFSMShsm to return control after all volumes are dumped. |
| FASTREPLICATIONEND | RETURNCONTROL(FASTREPLICATIONEND) specifies to DFSMShsm to return control just before the dumping processing starts. |
Defaults: DUMPEND is the default for the RETURNCONTROL parameter.