Updating the Media database (CTTMUP)

The CTTMUP utility can update fields of a volume or data set record in the Media database (MDB). Update is performed independently for volume and/or data set records. When updating a volume record, the CTTMUP utility does not automatically update the corresponding data set records and vice versa. (For example, the data set count in a volume record is not updated when the CTTMUP utility adds a data set.) Therefore, when using this utility, be sure to update all connected records. For more information, see Special notes regarding Media database control statements (CTTMUP).

When a data set is added, the CTTMUP utility can optionally search the rules (as if the data set is being created on removable media) to determine retention and vaulting criteria to be assigned to the data set and the volume containing the data set.

For a general description of how this utility can be used to update the Media database, see the Control-M/Tape chapter of the INCONTROL for z/OS Administrator Guide.