BRARCHIVE

You can use the BRARCHIVE tool to archive the offline redo log files, that is, the online redo log files saved to the archiving directory by Oracle. For more information, see the graphic. BRARCHIVE also saves all the logs and profiles of the archiving process.

• Reasons for archiving offline redo log files include the following:
  In the event of a failure, a consistent database status can only be recovered, if all relevant redo log files are available.


• The database system of a production SAP System has to be operated in the ARCHIVELOG mode to prevent overwriting of unsaved online redo log files. To protect the archive directory against overflowing, it has to be emptied regularly.


• An online backup of data files is useless if the related redo log files are missing. Therefore, you must archive the offline redo log files generated during the online backup immediately after running BRBACKUP.

For security reasons, BRARCHIVE offers duplicate archiving of offline redo log files (redundant serial or parallel archiving is possible). On the basis of the logs, BRARCHIVE can make sure that redo log files are not deleted before they have been archived and that the same files are archived once or twice.

BRARCHIVE allows the database administrator to continually archive offline redo log files. This means that the archiving directory, where Oracle places the offline redo log files, can be kept free by continually archiving and then deleting saved redo log files.

You can save offline redo log files on local or remote tape or on local or remote disk. Backup on disk is used particularly in the standby database environment.