How to Back Up and Restore a Dataset in z/OS®
When a dataset becomes damaged or inaccessible, being able to recreate it from a backup is critical. While data center-wide backups are usually performed by the storage management department, restores are often the responsibility of the user. There are many complexities to creating and maintaining backup systems, but restore is often more straightforward.
Understanding the programs, mechanisms, and commands involved with creating, and especially locating, backups and performing restores is an important skill for the z/OS user.
Here's What Is Covered:
- The major backup systems (DFSMShsm, FDR, CA-Disk)
- Their functions and operation
- How to restore backed-up datasets
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