Tagetless duplication does not require RMAN to connect to the target database or catalog, but it will need at least one copy of backup that comes from the primary database and is stored in the standby side.
- Connect to the primary database with RMAN.
- Backup database for duplication.
- Copy the backup dumps to a backup location in the standby cluster.
- Connect to the standby database as auxiliary role with RMAN.
- Duplicate the database using said backup location.
- Check standb1 for the standby database.
- Restart the standby cluster database.
- Start applying service.
[oracle@primary01 ~]$ rman target sys/password@primdb1
...
connected to target database: COMPDB (DBID=841830157)
RMAN> backup database;
Starting backup at 23-JAN-13
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=79 instance=primdb1 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=+DATA/primdb/datafile/system.897.797943475
input datafile file number=00002 name=+DATA/primdb/datafile/sysaux.898.797943569
input datafile file number=00003 name=+DATA/primdb/datafile/undotbs1.899.797943687
input datafile file number=00005 name=+DATA/primdb/datafile/example.900.797943711
input datafile file number=00006 name=+DATA/primdb/datafile/undotbs2.901.797943737
input datafile file number=00004 name=+DATA/primdb/datafile/users.902.797943753
channel ORA_DISK_1: starting piece 1 at 23-JAN-13
channel ORA_DISK_1: finished piece 1 at 23-JAN-13
piece handle=+DATA/primdb/backupset/2013_01_23/nnndf0_tag20130123t100747_0.1111.805457271 tag=TAG20130123T100747 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:04:52
Finished backup at 23-JAN-13
Starting Control File and SPFILE Autobackup at 23-JAN-13
piece handle=+DATA/primdb/autobackup/2013_01_23/s_805457561.1112.805457565 comment=NONE
Finished Control File and SPFILE Autobackup at 23-JAN-13
RMAN> list backup;
List of Backup Sets
===================
...
BS Key Type LV Size Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
7 Full 1.15G DISK 00:04:47 23-JAN-13
BP Key: 7 Status: AVAILABLE Compressed: NO Tag: TAG20130123T100747
Piece Name: +DATA/primdb/backupset/2013_01_23/nnndf0_tag20130123t100747_0.1111.805457271
List of Datafiles in backup set 7
File LV Type Ckp SCN Ckp Time Name
---- -- ---- ---------- --------- ----
1 Full 3092332 23-JAN-13 +DATA/primdb/datafile/system.897.797943475
2 Full 3092332 23-JAN-13 +DATA/primdb/datafile/sysaux.898.797943569
3 Full 3092332 23-JAN-13 +DATA/primdb/datafile/undotbs1.899.797943687
4 Full 3092332 23-JAN-13 +DATA/primdb/datafile/users.902.797943753
5 Full 3092332 23-JAN-13 +DATA/primdb/datafile/example.900.797943711
6 Full 3092332 23-JAN-13 +DATA/primdb/datafile/undotbs2.901.797943737
...
Here we copy the backup dumps by asmcmd between the two ASM instances.
[oracle@standby02 ~]$ asmcmd
ASMCMD> cp [email protected].+ASM2:+DATA/primdb/backupset/2013_01_23/nnndf0_tag20130123t100747_0.1111.805457271 +DATA/backup/database.bak
Enter password: **********
ASMCMD> cp [email protected].+ASM2:+DATA/primdb/autobackup/2013_01_23/s_805457561.1112.805457565 +DATA/backup/control.bak
Enter password: **********
ASMCMD>
[oracle@primary01 ~]$ rman auxiliary sys/password@standb1
...
connected to auxiliary database: COMPDB (not mounted)
Notice that the standby database is NOMOUNT now.
RMAN> RUN {
1> DUPLICATE DATABASE FOR STANDBY
2> BACKUP LOCATION '+data/backup'
3> NOFILENAMECHECK;
4> }
Starting Duplicate Db at 23-JAN-13
contents of Memory Script:
{
sql clone "alter system set control_files =
''+DATA/compdb/controlfile/current.260.761849575'' comment=
''Set by RMAN'' scope=spfile";
restore clone standby controlfile from '+data/backup/control.bak';
}
executing Memory Script
sql statement: alter system set control_files = ''+DATA/compdb/controlfile/current.260.761849575'' comment= ''Set by RMAN'' scope=spfile
Starting restore at 23-JAN-13
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=36 instance=standb1 device type=DISK
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:07
output file name=+DATA/compdb/controlfile/current.260.761849575
Finished restore at 23-JAN-13
contents of Memory Script:
{
sql clone 'alter database mount standby database';
}
executing Memory Script
sql statement: alter database mount standby database
released channel: ORA_AUX_DISK_1
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=36 instance=standb1 device type=DISK
RMAN-05529: WARNING: DB_FILE_NAME_CONVERT resulted in invalid ASM names; names changed to disk group only.
contents of Memory Script:
{
set newname for tempfile 1 to
"+data";
switch clone tempfile all;
set newname for datafile 1 to
"+data";
set newname for datafile 2 to
"+data";
set newname for datafile 3 to
"+data";
set newname for datafile 4 to
"+data";
set newname for datafile 5 to
"+data";
set newname for datafile 6 to
"+data";
restore
clone database
;
}
executing Memory Script
executing command: SET NEWNAME
renamed tempfile 1 to +data in control file
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
Starting restore at 23-JAN-13
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00001 to +data
channel ORA_AUX_DISK_1: restoring datafile 00002 to +data
channel ORA_AUX_DISK_1: restoring datafile 00003 to +data
channel ORA_AUX_DISK_1: restoring datafile 00004 to +data
channel ORA_AUX_DISK_1: restoring datafile 00005 to +data
channel ORA_AUX_DISK_1: restoring datafile 00006 to +data
channel ORA_AUX_DISK_1: reading from backup piece +DATA/backup/database.bak
channel ORA_AUX_DISK_1: piece handle=+DATA/backup/database.bak tag=TAG20130123T100747
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:04:15
Finished restore at 23-JAN-13
contents of Memory Script:
{
switch clone datafile all;
}
executing Memory Script
datafile 1 switched to datafile copy
input datafile copy RECID=7 STAMP=805463213 file name=+DATA/standb/datafile/system.1143.805462959
datafile 2 switched to datafile copy
input datafile copy RECID=8 STAMP=805463213 file name=+DATA/standb/datafile/sysaux.1144.805462959
datafile 3 switched to datafile copy
input datafile copy RECID=9 STAMP=805463213 file name=+DATA/standb/datafile/undotbs1.1145.805462963
datafile 4 switched to datafile copy
input datafile copy RECID=10 STAMP=805463213 file name=+DATA/standb/datafile/users.1148.805462967
datafile 5 switched to datafile copy
input datafile copy RECID=11 STAMP=805463214 file name=+DATA/standb/datafile/example.1146.805462963
datafile 6 switched to datafile copy
input datafile copy RECID=12 STAMP=805463214 file name=+DATA/standb/datafile/undotbs2.1147.805462965
Finished Duplicate Db at 23-JAN-13
RMAN>
Since RMAN mounts the standby database in the process of the duplication, standb1 will be mounted. Please notice that DATABASE_ROLE is PHYSICAL STANDBY now.
[oracle@standby01 ~]$ sqlplus / as sysdba
SQL> select open_mode, database_role, switchover_status from v$database;
OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS
-------------------- ---------------- --------------------
MOUNTED PHYSICAL STANDBY RECOVERY NEEDED
SQL> shutdown immediate;
...
[oracle@standby01 ~]$ srvctl start database -d compdb -o mount
[oracle@standby01 ~]$ sqlplus / as sysdba
...
SQL> select inst_id, open_mode, database_role, switchover_status from gv$database;
INST_ID OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS
---------- -------------------- ---------------- --------------------
1 MOUNTED PHYSICAL STANDBY RECOVERY NEEDED
2 MOUNTED PHYSICAL STANDBY RECOVERY NEEDED
SQL> select inst_id, process, status, thread#, sequence#, block#, blocks from gv$managed_standby where process in ('RFS','LNS') or process like 'MR%';
INST_ID PROCESS STATUS THREAD# SEQUENCE# BLOCK# BLOCKS
---------- --------- ------------ ---------- ---------- ---------- ----------
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 1 89 249 1
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 2 85 231 1
8 rows selected.
SQL> alter database recover managed standby database disconnect from session;
Database altered.
SQL> select inst_id, process, status, thread#, sequence#, block#, blocks from gv$managed_standby where process in ('RFS','LNS') or process like 'MR%';
INST_ID PROCESS STATUS THREAD# SEQUENCE# BLOCK# BLOCKS
---------- --------- ------------ ---------- ---------- ---------- ----------
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 1 89 316 1
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 2 85 356 1
1 MRP0 APPLYING_LOG 2 78 16500 19767
9 rows selected.
SQL> /
INST_ID PROCESS STATUS THREAD# SEQUENCE# BLOCK# BLOCKS
---------- --------- ------------ ---------- ---------- ---------- ----------
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 1 89 536 1
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 0 0 0 0
1 RFS IDLE 2 85 941 1
1 MRP0 WAIT_FOR_LOG 1 89 0 0
9 rows selected.