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DFSMSdfp. Subtopics: Chapter 1. Introducing the Storage Management Subsystem · Chapter 2. Preparing for the Storage Management Subsystem. DFSMShsm Storage Administration Reference. This topic contains . HOLD, Prevents all or part of DFSMShsm’s functions from running. Also causes the data . Abstract for DFSMSdfp Storage Administration · z/OS information · Summary of . Example: storage class ACS routine specifying both volume reference and unit.

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Combines refwrence entries in the journal data set with a restored backup copy of one or all of the control data sets. Displays the contents of locations within the DFSMShsm address space identified by an absolute address, a relative address, or a qualified address.

DFSMShsm Storage Administration Reference

Deletes one or more unneeded fast replication backup versions. Replacing cartridge-type tape volumes with their stroage volumes TRAP command: See Recovering control data sets using the enhanced CDS recovery function for the recommended way to recover control data sets that run outside the DFSMShsm address space.

Table 2 shows these commands and the SMS construct that assumes their functions. Deletes all eligible expired backup versions from all backup volumes. If a command is running for a long time and is returning referecne to your terminal, you can be prevented from performing other operations at your terminal.

Update specific fields within the control data sets: Use the following commands to maintain and recover the control data sets and the DFSMShsm address space. It also defines the automatic backup cycle, the secondary space management cycle, the dump cycle, dump classes, the volumes for aggregate recovery, and times for automatically demounting tapes currently in use by data set backup.


Replaces references to original tapes with references to alternate tapes. In an SMS environment, the storage management functions defined in the management class and the storage group control the SMS-managed data sets in place of the parameter or command definitions within DFSMShsm.

Deletes all the backup versions or specific backup versions of a specific data set.

Note, that the first four commands are only for diagnosis and repair. Also causes the data set backup switchtapes action to occur immediately.

Requests that DFSMShsm back up eligible data sets on one or more volumes, in one or more storage groups, or on all primary volumes; or that it back up the control data sets. This topic contains detailed explanations of the operator, storage administrator, and system programmer commands, which are listed in alphabetical order.

Moves all migration copies meeting a specified age criteria between DFSMShsm migration or backup volumes. The list command that is causing you trouble does not restart. Use the following commands to directly manage data sets or volumes as opposed to the automatic management functions of DFSMShsm: Long-running commands are limited to having only one of each such command being performed by DFSMShsm at any time.

Backs up aggregate groups of user-defined data sets for recovery at another location. Creates a fast replication backup version for each volume in a specified copy pool. Removes a volume from the list of volumes managed by DFSMShsm and changes existing volume information. Other commands can also run for a long time.

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Table of Contents

Uses fast replication to recover a single volume or a pool of volumes from the managed backup versions. This command also corrects discrepancies in the common recall queue. A specific request number All requests for a particular user All requests for a particular data set. To stop such a command from interfering with your use of your terminal, have the computer system operator issue a HOLD command for the function that is causing the interference.

Requesting a fast replication recovery HOLD command: DFSMShsm Storage Administration Reference This topic contains detailed explanations of the operator, storage administrator, and system programmer commands, which are listed in alphabetical order. Creates a backup version of a specific data set.

1.17 Quick Reference to ISMF Commands and Line Operators

Changes the number of backup versions maintained and the frequency of creating refegence versions for a non-SMS-managed data set. Use the following commands and parameters to determine status: Deletes a migrated data set without recalling the data set.

Moves eligible data sets from DFSMShsm-managed volumes to migration volumes or from migration volumes to other migration volumes.