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FRA – FLASH RECOVERY AREA



 FRA – Flash Recover area
  •   Central location for backup data
    • Logs
    • Archive logs
    • Backups
    • Control file
  • Location a
    • ASM
    • filesystem
  • Allow RMAN Retention policies
  • Parameters
    • DB_RECOVERY_FILE_DEST
    • DB_RECOVERY_DEST_SIZE

 How to .. 
--- check the flash_recovery_area parameters

SQL> show parameter DB_RECOVERY_FILE_DEST

NAME                                             TYPE               VALUE
------------------------------------         -----------         ------------------------------
db_recovery_file_dest                string              /u01/app/oracle/flash_recovery_area
db_recovery_file_dest_size       big integer     3852M

SQL>
col name form a30
col value form a30
select name, value from v$parameter where name like 'log_arc%' order by 1 asc

NAME                           VALUE
------------------------------ ------------------------------
log_archive_config
log_archive_dest
l...
log_archive_dest_31
..
log_archive_dest_state_1       enable
..
log_archive_dest_state_31      enable
..
log_archive_duplex_dest
log_archive_format             %t_%s_%r.dbf
log_archive_local_first        TRUE
log_archive_max_processes      4
log_archive_min_succeed_dest   1
log_archive_start              FALSE
log_archive_trace              0

71 rows selected.

SQL> set lines 200
SQL> select * from v$flash_recovery_area_usage;

FILE_TYPE                  PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES
--------------------          ------------------                   -------------------------                          ---------------
CONTROL FILE                                    0                        0                                                 0
REDO LOG                                          0                        0                                                 0
ARCHIVED LOG                                   .65                     0                                                 1
BACKUP PIECE                                    0                        0                                                 0
IMAGE COPY                                      0                         0                                                 0
FLASHBACK LOG                                0                         0                                                 0
FOREIGN ARCHIVED LOG                    0                         0                                                 0

7 rows selected.

SQL> select * from v$recovery_file_dest

NAME                                          SPACE_LIMIT SPACE_USED  SPACE_RECLAIMABLE NUMBER_OF_FILES
--------------------------------           ---------- ----------------- ---------------
/u01/app/oracle/flash_recovery_area  4039114752            26259456                 0               1


--- Change the size of the flash recovery area to 5GB:
SQL> alter system set db_recovery_file_dest_size = 5G scope=both;


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