Modifying the allocation quantities for catalog information data sets

Catalog information data sets (CIDS) are created on ML1 volumes during FRBACKUP of a copy pool that is defined to capture catalog information. By default, DFSMShsm will attempt to allocate a CIDS with 50 primary and 50 secondary cylinders. Factors such as limited space on ML1 volumes or a higher number of catalog entries in the catalogs to be captured may require changes to these values.

The number of cylinders specified for primary allocation of the CIDS can be adjusted with a patch to the FRGCB. For example:

PATCH .FRGCB.+30C X'00000064' VERIFY(.FRGCB.+30C X'00000032')

The number of cylinders specified for secondary allocation of the CIDS can be adjusted with a patch to the FRGCB. For example:

PATCH .FRGCB.+310 X'00000064' VERIFY(.FRGCB.+310 X'00000032')