Cloning Oracle 12c Database Using Rman Backup Based Duplication

PRODUCTION    : MACHINE DB31
CLONE                  : MACHINE DB32

MACHINE DB32 CLONE:
——————

1) Create Directory CLONE
————————-

[oracle@db32 ~]$ cd /u01

[oracle@db32 u01]$ ls

[oracle@db32 u01]$ mkdir clone

 

2) Create Pfile for Clone:
————————–

[oracle@db32 ~]$ cd $ORACLE_HOME/dbs

[oracle@db32 dbs]$ vi initclone.ora

*.db_name=CLONE
*.control_files='/u01/app/oracle/oradata/CLONE/control01.ctl','/u01/app/oracle/flash_recovery_area/clone/control02.ctl'
*.db_recovery_file_dest_size=4g
*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area'
*.db_file_name_convert='/u01/app/oracle/oradata/test','/u01/app/oracle/oradata/CLONE/'
*.log_file_name_convert='/u01/app/oracle/oradata/test','/u01/app/oracle/oradata/CLONE/'

3) Create password file Clone:
——————————

[oracle@db32 dbs]$ orapwd file=orapwclone password=manager force=y

4) create directory which is mentioned in your pfile:
—————————————————–

/u01/app/oracle/flash_recovery_area/clone (create clone directory)
MACHINE DB32 CLONE:
——————
5) create listener and tns by NETCA Clone Side:
———————————————-
i) Listener Name: list_col
ii) Tns Name: toclone

6) register created listener by NETMGR
————————————–

MACHINE DB31 PRODUCTION:
————————
7) create listener and tns by NETCA
i) Listner Name: list
ii) Tns Name: toprod

8) register created listener by NETMGR

MACHINE DB31 PRODUCTION:
————————
9) copy paste listener and tns for each other : prod & clone

/u01/app/oracle/product/11.2.0/dbhome_1/network/admin

[oracle@db31 admin]$ vi listener.ora
[oracle@db31 admin]$ vi tnsnames.ora

MACHINE DB32 CLONE:
——————
10) copy paste listener and tns for each other : prod & clone

cd /u01/app/oracle/product/11.2.0/dbhome_1/network/admin

[oracle@db32 admin]$ vi listener.ora
[oracle@db32 admin]$ vi tnsnames.ora

11) Check Connectivity:

ping tns (tnspingtoclone)
(tnspingtoprod)

rman target sys/manager@toclone
rman target sys/manager@toprod
MACHINE DB31 PRODUCTION:
———————–
12) Check connectivity:
ping tns (tnspingtoclone)
(tnspingtoprod)

Rman>rman target sys/manager@toclone
Rman>rman target sys/manager@toprod

13) Enable archive log:
———————–

SQL> alter database archivelog;

Database altered.

SQL> alter database open;

Database altered.

SQL> alter system switch logfile;

System altered.

SQL> archive log list;

Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 13
Next log sequence to archive 15
Current log sequence 15

14) Connect RMAN :
—————–

[oracle@db31 ~]$ rman target/

RMAN> show all;

RMAN> configure controlfile autobackup on;

15) take database backup through RMAN :
—————————————

RMAN> backup database include current controlfile plus archivelog;

Starting backup at 23-JAN-19
current log archived
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=27 device type=DISK
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=4 RECID=1 STAMP=952712839
channel ORA_DISK_1: starting piece 1 at 23-JAN-19
channel ORA_DISK_1: finished piece 1 at 23-JAN-19
piece handle=/u01/app/oracle/flash_recovery_area/PROD/backupset/2019_01_21/o1_mf_annnn_TAG20170822T182720_dsrbkjxj_.bkp tag=TAG20170822T182720 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 23-JAN-19

Starting backup at 23-JAN-19
using channel ORA_DISK_1
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=/u01/app/oracle/oradata/prod/system01.dbf
input datafile file number=00002 name=/u01/app/oracle/oradata/prod/sysaux01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/prod/undotbs01.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/prod/users01.dbf
channel ORA_DISK_1: starting piece 1 at 23-JAN-19
channel ORA_DISK_1: finished piece 1 at 23-JAN-19
piece handle=/u01/app/oracle/flash_recovery_area/PROD/backupset/2019_01_21/o1_mf_nnndf_TAG20170822T182722_dsrbkzmj_.bkp tag=TAG20170822T182722 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:08:28
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
channel ORA_DISK_1: starting piece 1 at 23-JAN-19
channel ORA_DISK_1: finished piece 1 at 23-JAN-19
piece handle=/u01/app/oracle/flash_recovery_area/PROD/backupset/2019_01_21/o1_mf_ncnnf_TAG20170822T182722_dsrc1mfn_.bkp tag=TAG20170822T182722 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 23-JAN-19

Starting backup at 23-JAN-19
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=5 RECID=2 STAMP=952713357
channel ORA_DISK_1: starting piece 1 at 23-JAN-19
channel ORA_DISK_1: finished piece 1 at 23-JAN-19
piece handle=/u01/app/oracle/flash_recovery_area/PROD/backupset/2019_01_21/o1_mf_annnn_TAG20170822T183557_dsrc1p1c_.bkp tag=TAG20170822T183557 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 23-JAN-19

Starting Control File and SPFILE Autobackup at 23-JAN-19
piece handle=/u01/app/oracle/flash_recovery_area/PROD/autobackup/2019_01_21/o1_mf_s_952713359_dsrc1qyr_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 23-JAN-19

16) Go flash_recover_area
————————–

[oracle@db31 ~]$ cd /u01/app/oracle/flash_recovery_area/

[oracle@db31 flash_recovery_area]$ scp -r PROD oracle@192.168.139.32:/u01/app/oracle/flash_recovery_area/
oracle@192.168.139.32's password:
o1_mf_annnn_TAG20170822T183557_dsrc1p1c_.bkp 100% 143KB 142.5KB/s 00:00
o1_mf_ncnnf_TAG20170822T182722_dsrc1mfn_.bkp 100% 9568KB 9.3MB/s 00:01
o1_mf_nnndf_TAG20170822T182722_dsrbkzmj_.bkp 100% 1060MB 2.6MB/s 06:42
o1_mf_annnn_TAG20170822T182720_dsrbkjxj_.bkp 100% 4222KB 4.1MB/s 00:01
o1_mf_1_5_dsrc1o50_.arc 100% 141KB 141.0KB/s 00:00
o1_mf_1_4_dsrbkhmp_.arc 100% 4220KB 602.9KB/s 00:07
o1_mf_s_952713359_dsrc1qyr_.bkp 100% 9600KB 4.7MB/s 00:02
MACHINE DB32 CLONE:
[oracle@db32 ~]$ export ORACLE_SID=clone

[oracle@db32 ~]$ sqlplus / as sysdba

SQL> startup nomount

RMAN> rman target sys/manager@toprod auxiliary sys/manager@toclone

connected to target database: PROD (DBID=364534697)
connected to auxiliary database: CLONE (not mounted)

RMAN> duplicate target database to 'CLONE' Nofilenamecheck;

Starting Duplicate Db at 23-JAN-19
using channel ORA_AUX_DISK_1

contents of Memory Script:
{
   sql clone "alter system set  db_name =
 ''CLONE'' comment=
 ''Modified by RMAN duplicate'' scope=spfile";
   sql clone "alter system set  db_unique_name =
 ''CLONE'' comment=
 ''Modified by RMAN duplicate'' scope=spfile";
   shutdown clone immediate;
   startup clone force nomount
   restore clone primary controlfile;
   alter clone database mount;
}
executing Memory Script

sql statement: alter system set  db_name =  ''CLONE'' comment= ''Modified by RMAN duplicate'' scope=spfile

sql statement: alter system set  db_unique_name =  ''CLONE'' comment= ''Modified by RMAN duplicate'' scope=spfile

Oracle instance shut down

Oracle instance started

Total System Global Area     631914496 bytes

Fixed Size                     1338364 bytes
Variable Size                377488388 bytes
Database Buffers             247463936 bytes
Redo Buffers                   5623808 bytes

Starting restore at 23-JAN-19
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=18 device type=DISK

channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: reading from backup piece /u01/app/oracle/flash_recovery_area/CLONE/autobackup/2013_01_27/o1_mf_s_805812962_8j9onctk_.bkp
channel ORA_AUX_DISK_1: piece handle=/u01/app/oracle/flash_recovery_area/CLONE/autobackup/2013_01_27/o1_mf_s_805812962_8j9onctk_.bkp tag=TAG20130127T125602
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:03
output file name=/u01/app/oracle/oradata/CLONE/control01.ctl
output file name=/u01/app/oracle/flash_recovery_area/CLONE/control02.ctl
Finished restore at 23-JAN-19

database mounted

contents of Memory Script:
{
   set until scn  763666;
   set newname for datafile  1 to
 "/u01/app/oracle/oradata/CLONE/system01.dbf";
   set newname for datafile  2 to
 "/u01/app/oracle/oradata/CLONE/sysaux01.dbf";
   set newname for datafile  3 to
 "/u01/app/oracle/oradata/CLONE/undotbs01.dbf";
   set newname for datafile  4 to
 "/u01/app/oracle/oradata/CLONE/users01.dbf";
   restore
   clone database
   ;
}
executing Memory Script

executing command: SET until clause

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

Starting restore at 23-JAN-19
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 /u01/app/oracle/oradata/CLONE/system01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/CLONE/sysaux01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/CLONE/undotbs01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/CLONE/users01.dbf
channel ORA_AUX_DISK_1: reading from backup piece /u01/app/oracle/flash_recovery_area/CLONE/backupset/2013_01_27/o1_mf_nnndf_TAG20130127T125432_8j9okjyl_.bkp
channel ORA_AUX_DISK_1: piece handle=/u01/app/oracle/flash_recovery_area/CLONE/backupset/2013_01_27/o1_mf_nnndf_TAG20130127T125432_8j9okjyl_.bkp tag=TAG20130127T125432
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:01:22
Finished restore at 23-JAN-19

contents of Memory Script:
{
   switch clone datafile all;
}
executing Memory Script

datafile 1 switched to datafile copy
input datafile copy RECID=1 STAMP=805814774 file name=/u01/app/oracle/oradata/CLONE/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=2 STAMP=805814774 file name=/u01/app/oracle/oradata/CLONE/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=3 STAMP=805814774 file name=/u01/app/oracle/oradata/CLONE/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=4 STAMP=805814774 file name=/u01/app/oracle/oradata/CLONE/users01.dbf

contents of Memory Script:
{
   set until scn  763666;
   recover
   clone database
    delete archivelog
   ;
}
executing Memory Script

executing command: SET until clause

Starting recover at 23-JAN-19
using channel ORA_AUX_DISK_1

starting media recovery

archived log for thread 1 with sequence 4 is already on disk as file /u01/app/oracle/flash_recovery_area/CLONE/archivelog/2013_01_27/o1_mf_1_4_8j9on8j1_.arc
archived log file name=/u01/app/oracle/flash_recovery_area/CLONE/archivelog/2013_01_27/o1_mf_1_4_8j9on8j1_.arc thread=1 sequence=4
media recovery complete, elapsed time: 00:00:00
Finished recover at 23-JAN-19

contents of Memory Script:
{
   shutdown clone immediate;
   startup clone nomount;
   sql clone "alter system set  db_name =
 ''CLONE'' comment=
 ''Reset to original value by RMAN'' scope=spfile";
   sql clone "alter system reset  db_unique_name scope=spfile";
   shutdown clone immediate;
   startup clone nomount;
}
executing Memory Script

database dismounted
Oracle instance shut down

connected to auxiliary database (not started)
Oracle instance started

Total System Global Area     631914496 bytes

Fixed Size                     1338364 bytes
Variable Size                377488388 bytes
Database Buffers             247463936 bytes
Redo Buffers                   5623808 bytes

sql statement: alter system set  db_name =  ''CLONE'' comment= ''Reset to original value by RMAN'' scope=spfile

sql statement: alter system reset  db_unique_name scope=spfile

Oracle instance shut down

connected to auxiliary database (not started)
Oracle instance started

Total System Global Area     631914496 bytes

Fixed Size                     1338364 bytes
Variable Size                377488388 bytes
Database Buffers             247463936 bytes
Redo Buffers                   5623808 bytes
sql statement: CREATE CONTROLFILE REUSE SET DATABASE "CLONE" RESETLOGS ARCHIVELOG
  MAXLOGFILES     16
  MAXLOGMEMBERS      3
  MAXDATAFILES      100
  MAXINSTANCES     8
  MAXLOGHISTORY      292
 LOGFILE
  GROUP  1  SIZE 50 M ,
  GROUP  2  SIZE 50 M ,
  GROUP  3  SIZE 50 M
 DATAFILE
  '/u01/app/oracle/oradata/CLONE/system01.dbf'
 CHARACTER SET WE8MSWIN1252


contents of Memory Script:
{
   set newname for tempfile  1 to
 "/u01/app/oracle/oradata/CLONE/temp01.dbf";
   switch clone tempfile all;
   catalog clone datafilecopy  "/u01/app/oracle/oradata/CLONE/sysaux01.dbf",
 "/u01/app/oracle/oradata/CLONE/undotbs01.dbf",
 "/u01/app/oracle/oradata/CLONE/users01.dbf";
   switch clone datafile all;
}
executing Memory Script

executing command: SET NEWNAME

renamed tempfile 1 to /u01/app/oracle/oradata/CLONE/temp01.dbf in control file

cataloged datafile copy
datafile copy file name=/u01/app/oracle/oradata/CLONE/sysaux01.dbf RECID=1 STAMP=805814812
cataloged datafile copy
datafile copy file name=/u01/app/oracle/oradata/CLONE/undotbs01.dbf RECID=2 STAMP=805814812
cataloged datafile copy
datafile copy file name=/u01/app/oracle/oradata/CLONE/users01.dbf RECID=3 STAMP=805814812

datafile 2 switched to datafile copy
input datafile copy RECID=1 STAMP=805814812 file name=/u01/app/oracle/oradata/CLONE/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=2 STAMP=805814812 file name=/u01/app/oracle/oradata/CLONE/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=3 STAMP=805814812 file name=/u01/app/oracle/oradata/CLONE/users01.dbf

contents of Memory Script:
{
   Alter clone database open resetlogs;
}
executing Memory Script

database opened
Finished Duplicate Db at 23-JAN-19

RMAN performed the following steps automatically to duplicate the database :

  • Allocates automatic auxiliary channel
  • Creates a controlfile for the clone database
  • Performs an incomplete recovery of the clone database using incremental backups and archived redo log files up to the last backed up archived redo log file.
  • Shutdowns the database and opens it using RESETLOGS option.
  • Generates a new unique DBID for the clone database.

All file locations were the same as in the production database. However, in case we need to change clone database’s directory structure.

Catch Me On:- Hariprasath Rajaram 

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backup basedduplicationRman

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