The flash recovery area(FRA) is an Oracle-managed destination( either FILE SYSTEM or ASM ) for centralized backup and recovery files. It simplifies the backup management.

The following recovery-related files are stored in the flash recovery area:
— Current control file
— Online redo logs
— Archived redo logs
— Flashback logs
— Control file auto backups
— Datafile and control file copies
— Backup pieces
— Foreign archived redo log

Below are the steps for enabling flash recovery area.

DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST initial parameters are required for enabling FRA.

DB_RECOVERY_FILE_DEST_SIZE -> It is the disk quota size for the flash recovery area.

DB_RECOVERY_FILE_DEST – > This initialization parameter is a valid destination for the Flash Recovery Area. It can be a directory, file system, or ASM disk group.

NOTE : DB_RECOVERY_FILE_DEST_SIZE must be set before DB_RECOVERY_FILE_DEST.

1. Check whether FRA is enabled or not.

2. Enable FRA.

Now FRA has been enabled.

How to make archivelog destination same as flash recovery area:

FOR RAC :

For RAC database, DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST parameter must be same across all the instances. So it is recommended to put FRA on ASM DISKS.