This parameter is only relevant for Standby Database and Split Mirror Backup.
The connect string to the standby database instance is defined with this parameter so that BRBACKUP can log on to the standby database.
Syntax
standby_db = <conn_name>
Default value: none
Possible value:
<conn_name>: connection name from TNSNAMES.ORA for the connect from the backup host to the standby database
Example
standby_db = C11_STBY
This must permit connection with SYSDBA authorization. On UNIX, this requires the Oracle password file. Or you can use the environment variable BR_RSC, as described in SAP Note 914174.