z/OS DFSMS Managing Catalogs
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Specified Operating Environment

z/OS DFSMS Managing Catalogs
SC23-6853-00

The Integrated Catalog Forward Recovery Utility is designed to operate with, and is supported for, any supported release of z/OS®.

The ICFRU programs are designed to operate using the configurations supported by any supported release of z/OS.

The programs in ICFRU are dependent on the internal format of the EXPORT portable data set, the SMF record types 61/65/66, and the catalog records contained in these sources.

Approximate region size requirements for the programs are shown below. If additional buffers are specified by JCL, more storage may be required.
  • CRURRSV - 256K
  • CRURRAP - 512K
The programs of ICFRU execute below the 16M-byte virtual storage line. However, even with a large number of buffers, the required region size is less than 2 megabytes.

In addition, a sort facility, such as z/OS DFSORT or the equivalent, is required.

Parent topic: Integrated Catalog Forward Recovery Utility (ICFRU)

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