Create an OMF Control File that is FRA managed on an existing database
(These instructions assumes that you are running your database in archivelog mode and have configured a FRA)
----- Create Control File Location -----
1.) On the OS create a dir %FLASH_RECOVERY_AREA%\%DB_NAME%\CONTROLFILE
2.) With the database open identify the location of the control files “select * from v$controlfile;”
3.) Shutdown database “Shutdown Immediate”
4.) Exit out of sql prompt
----- Generate OMF Control File Name -----
5.) Connect to RMAN “RMAN target=/”
6.) Startup mount
7.) Run the following command “ backup as copy current controlfile format 'o1_mf_%u_.ctl' ”
a. This will generate an error