FLASHBACK Enable

11gR2 RAC

1. Verify Archive log and Flashback is enable.

archive log list

select FLASHBACK_ON from v$database;

2. cluster_database parameter false

alter system set cluster_database=false scope=false sid='racdb1';


3. Setting up FLASHBACK Area.

alter system set DB_RECOVERY_FILE_DEST_SIZE=200M scope=spfile;
alter system set DB_RECOVERY_FILE_DEST='+FRA/flashback/' scope=spfile;


4. shutdown all instance.

srvctl stop database -d RACDB

5. Mount database.

startup mlount

6. Enable Flashback.

alter database flashback on;


7. set parameter cluster_database true.

alter system set cluster_database=true scope=spfile side='racdb1';

8. shutdown instance.

shutdown ;

9. start all instances.

srvctl start database -d racdb