Oracle can store different kind of files under FRA:
– backupset: for RMAN regular backups. – datafile: for RMAN image copies. – autobackup: for control file autobackups. – flashback: If your database runs in flashback mode, you will see flashback logs in this subdirectory. – archivelog: for Archived redo logs – controlfile: The control file, if configured to go to the flash recovery area. – onlinelog: Online redo logs can also be made to go to the flash recovery area