Administering SESAM backup copies of the catalog space and CAT-LOG files
The CAT-REC file contains an appropriate entry for each SESAM backup copy of the catalog space. Each entry of this kind is followed by the entries for the associated CAT-LOG files.
The database administrator can edit the CAT-REC file, i.e. he/she can delete entries as a means of administering the SESAM backup copies of the catalog space. This is done with the utility statement MODIFY or using the utility monitor (offline update, see the “Utility Monitor” manual).
Once an entry has been deleted from the CAT-REC file, the corresponding SESAM backup copy or CAT-LOG file is unknown to SESAM/SQL and is no longer available for recovery purposes.
It is advisable to delete SESAM backup copies and log files that are no longer needed under BS2000.
Administering SESAM backup copies of user spaces and DA-LOG files
The catalog table RECOVERY_UNITS contains an appropriate entry for each SESAM backup copy of a user space. Information on DA-LOG files is stored in catalog table DA_LOGS.
The database administrator can maintain the RECOVERY_UNITS and DA_LOGS catalog tables with the aid of the utility statement MODIFY. Once an entry has been deleted from RECOVERY UNITS and DA_LOGS, the corresponding SESAM backup copy or DA_LOG file is unknown to SESAM/SQL and is no longer available for recovery purposes.
It is advisable to delete SESAM backup copies and log files that are no longer needed under BS2000.