If the Media Database or some portion of it must be recovered as follows:
Restore the latest Media Database backup using the standard site backup utility. Run the CTTRCV utility to apply all updates since that backup from the active Trace file (a Roll‑Forward process).
Based on the current Media Database, the CTTrcv utility can withdraw all updates until a certain point (a Rollback process). It can also remove all updates in a specified time range or generated by a specific job.
When the restore is complete, the free record chain must be rebuilt by running the IOADIG utility with FUNC=W. All indexes must be rebuilt by running the CTTBIX utility.
