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FAST RECOVERY AREA

http://umardba.blogspot.com/2009/12/how-to-change-flash-recovery-area-to.html

sql> select value from v$parameter where name like ‘%db_recovery%;
sql> select value from v$paremeter where name=’control_files’;
sql> show parameter control_files;

ALTER SYSTEM SET DB_RECOVERY_FILE_DEST='+disk1' SCOPE=BOTH SID='*';
SQL> ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE = 10G SCOPE=BOTH;

SQL> startup mount

SQL> alter database archivelog;
SQL> alter database open;
sql> alter system switch logfile;
rman> CONFIGURE CONTROLFILE AUTOBACKUP ON;
RMAN> BACKUP DATABASE PLUS ARCHIVELOG DELETE INPUT;
RMAN> show all;
RMAN> list backup;
RMAN> list expired backup;
http://gavinsoorma.com/2009/12/11g-release-2-rman-backup-compression/  
RMAN> CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET;
RMAN> CONFIGURE COMPRESSION ALGORITHM ‘HIGH’;
or
RMAN> CONFIGURE COMPRESSION ALGORITHM ‘MEDIUM’;
or
RMAN> CONFIGURE COMPRESSION ALGORITHM ‘LOW’;
or
RMAN> CONFIGURE COMPRESSION ALGORITHM ‘BASIC’;
Unfortunately, unless you have purchased the Advanced Compression Option, your only choice is BASIC.
rman>list backup summary;
rman>DELETE BACKUPSET 145913,145914,145915,145916,145917;
rman>delete obsolete;
rman> crosscheck backup;
rman> crosscheck copy;
rman> list archivelog all;
rman> delete backup;
rman> DELETE NOPROMPT ARCHIVELOG ALL;

rman> delete noprompt archivelog until time 'SYSDATE-10';
SELECT * FROM v$recovery_file_dest; SELECT * FROM v$recovery_area_usage;
RMAN (Oracle docs)
http://docs.oracle.com/cd/E29597_01/backup.1111/e10642/rcmmaint.htm
ORACLE 9i
rman> CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/backup/ora_df%t_s%s_s%p';

Retention policy
rman> CONFIGURE RETENTION POLICY TO REDUNDANCY 3;