Table 1 lists new and changed system-level commands related to DFSMSdfp support. See z/OS DFSMS OAM Planning, Installation, and Storage Administration Guide for Object Support and z/OS MVS System Commands for more specific information about these commands.
| Command name | Release | Description | Reason for change |
|---|---|---|---|
| MODIFY CATALOG,CONTENTION | z/OS® V2R1 | New: New parameters to specify a new wait time or action (or both) for one of the reason classes or Catalog resources for which contention detection is available. | Resource contention detection |
| MODIFY OAM,DISPLAY | z/OS V2R1 | New: New SETTLIB parameter displays the current setting of the SETTLIB statement for the OAM address space. | Tape library support |
| SETALLOC | z/OS V2R1 | New: New BATCH_RCLMIGDS parameter specifies how migrated data sets will be recalled. | Catalog enhancement |
| SETSMS | z/OS V2R1 | New: New PS_EXT_VERSION(1|2) parameter allows the system to support a version number for extended format data sets. | FlashCopy support |
| SETSMS CA_RECLAIM | z/OS V1R12 | New: New CA_RECLAIM parameter enables or disables the CA reclaim function for the system. When enabled, CA reclaim causes empty CA space be reclaimed automatically for key-sequenced data sets. | CA reclaim support |