-m|-modify 

This BRARCHIVE command option applies the ofline redo log files to a standby database.

Input syntax: -m|-modify [<delay>]

Default value: No delay

Delay: The offline redo log files that are created are sent to the standby database before they are processed. There they can be applied with a delay time of <delay> minutes after creating the Oracle offline redo log file.

If there is a standby database, brarchive -m  must be called in order to apply the offline redo log files.

For more information, see Standby Database.