CTDCLHST Utility

CTDCLHST, the "Clear History" utility, is responsible for deleting from the History User Report List file those user and $SYSDATA entries that have passed their retention period. The utility also deletes the catalog entries for the associated CDAM files and produces a list of tapes and/or cartridges that have been released.

The utility has two steps:

1. Deletes expired user and $SYSDATA entries and produces a list of released tapes and/or cartridges.
2. Releases tapes and/or cartridges back into the system. The method used varies according to the backup utility used.