RMAN Database Full Backup & Recovery

RMAN Database Full Backup & Recovery

-Take RMAN DB FULL Backup 

-Simulate Failure 

-Start Database Recovery 

nohup rman target / cmdfile=/u01/mqm/MQM_RMAN_Backup_script.sh log=/u01/mqm/rman_fullbackup_db.log &

cat mqm_rmanbackup.txt

run

{

allocate channel t1 type disk;

backup format '/u01/mqm/full_db_%t_%p%p' database;

backup format '/u01/mqm/archive_%t_%p%p' archivelog all;

backup format '/u01/mqm/cntrl_%s_%p_%t' current controlfile;

Backup format '/u01/mqm/spfile_%s_%p_%t' spfile;

release channel t1;

}

cat rman_exec.sh 

rman target / cmdfile=mqm_rmanbackup.txt

nohup ./rman_exec.sh &

RMAN> list backup of database summary;

RMAN> list backup summary;

Simulate Failure:

Take the location of spfile, datafile & control file

SQL> select name from v$datafile;

SQL> select member from v$logfile;

SQL> select name from v$controlfile;

SQL> show parameter spfile;

SQL> create pfile from spfile;

File created.

Delete all the spfile, datafiles & Control files from the server.

SQL> startup;

ORACLE instance started.

Total System Global Area  801112064 bytes

Fixed Size     8797872 bytes

Variable Size   423625040 bytes

Database Buffers   360710144 bytes

Redo Buffers     7979008 bytes

ORA-00205: error in identifying control file, check alert log for more info

Restore Controlfile:

run

{

allocate channel c1 type disk;

set until time "to_date('2022/02/26 15:47:00','yyyy/mm/dd HH24:MI:SS')";

restore controlfile from '/u01/mqm/cntrl_23_1_1097682448';

release channel c1;

}

Bring the database at mount state

RMAN> alter database mount;

Statement processed

(or)

sqlplus / as sysdba

SQL> alter database mount;

Database altered.

Restore Database:

run 

{

allocate channel c1 type disk;

set until time "to_date('2022/02/26 15:47:00','yyyy/mm/dd HH24:MI:SS')";

restore database;

recover database;

release channel c1;

}

RMAN> alter database open resetlogs;

Statement processed

(or)

sqlplus / as sysdba

SQL> alter database open resetlogs;

Database altered.