Where is flash recovery area?
Where is flash recovery area?
In the Oracle database, the Flash Recovery Area or FRA is a location on disk where the database can create and manage several kinds of backup and recovery-related files. Main file types are archivelog, flashback log, backups, as well as mirrors for your control files and redo log files.
Which three types of files are automatically placed in the fast recovery area?
Ideally, the fast recovery area is large enough to hold a copy of all of your data files and control files, the online redo logs, and the archived redo log files needed to recover your database using the data file backups kept under your retention policy.
How do I increase flash recovery area size?
After you start SQL*Plus and connect to the database, set the size of the flash recovery area. For example, set it to 10 GB: SQL> ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE = 10G SCOPE=BOTH SID=’*’; Set SCOPE to BOTH make the change both in memory and the server parameter file.
What is flash recovery?
The flash recovery area can be defined as a single, unified storage area that keeps all the database recovery related files and performs recovery activities in an Oracle database.
What file types will by default be stored in the flash recovery area if it has been defined?
Oracle RMAN – Using the Flash Recovery Area
| File Type | Notes |
|---|---|
| Flashback logs | Flashback logs are stored in the flash recovery area, if it is defined. |
| Control file autobackups | The default location for the RMAN control file autobackups is the flash recovery area, if it is defined. |
How does Oracle Flashback database work?
Use the FLASHBACK DATABASE command to rewind the database to a target time, SCN, or log sequence number. This command works by undoing changes made by Oracle Database to the data files that exist when you run the command. Flashback can fix logical failures, but not physical failures.
Which parameters configure the fast recovery area?
You can modify the following initialization parameters to relocate the fast recovery area and to adjust its size:
- DB_RECOVERY_FILE_DEST. Specifies the location of the fast recovery area.
- DB_RECOVERY_FILE_DEST_SIZE. Specifies the size of the fast recovery area, in bytes.
What is Fra in ASM?
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.
Can we delete flashback logs in Oracle?
If you have not allocated enough space in your flash recovery area to store your flashback logs and still meet your other backup retention requirements, flashback logs may be deleted from the recovery area to make room.
What happens when FRA is full?
b)If no archived logs are stored in the FRA, and the FRA gets full, then your database is not affected. Your backups will be affected, as those will fail. In this case you will have to increase the FRA and/or delete obsole backups.
