Sources of Diagnostic Information

The Oracle Data Guard broker provides information about its activities in several forms.

• Database status information (see Database Status)

• Oracle alert log files

  The broker records key information in the alert log file for each instance of each database in a broker configuration. You can check the alert log files for such information when troubleshooting Oracle Data Guard.

• Oracle Data Guard "broker log files"

  For each instance of each database in a broker configuration, the broker DMON process records important behavior and status information in a broker log file, useful in diagnosing Oracle Data Guard failures. The TraceLevel configuration property (see TraceLevel) is used to specify the level of diagnostic information reported in the broker log files.

  The broker log file is created in the same directory as the alert log and is named drc<$ORACLE_SID>.log.