Rman Duplicate From Active Database

Cloning A Database On The Same Server Using Rman Duplicate From Active Database

Alejandro Vargas | Principal Support ConsultantOracle Advanced Customer Services

To clone a database using Rman we used to require an existing Rman backup, on 11g we can clone databases using the “from active” database option. In this case we do not require an existing backup, the active datafiles will be used as the source for the clone.

In order to clone with the source database open it must be on archivelog mode. Otherwise we can make the clone mounting the source database, as shown in this example.

These are the steps required to complete the clone:

Configure The Network ......................................................................................2Create A Password File For The New Database................................................3Create An Init.Ora For The New Database.........................................................3Create The Admin Directory For The New Database ........................................4Shutdown And Startup Mount The Source Database.........................................4Startup Nomount The New Database ................................................................4Connect To The Target (Source) And Auxiliary (New Clone) Databases Using Rman ..................................................................................................................4Execute The Duplicate Command......................................................................5Remove The Old Pfile.......................................................................................12Check The New Database................................................................................12

1/13


Configure The Network

We need to configure the network so that there is connectivity to the target (source) database and to the database we want to create (the clone)

Listener file:

# listener.ora Network Configuration File: /oracle/app/product/11.2.0/dbhome_1/network/admin/listener.ora# Generated by Oracle configuration tools.

SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = redpanda) (ORACLE_HOME = /oracle/app/product/11.2.0/dbhome_1) (SID_NAME = redpanda) ) (SID_DESC = (GLOBAL_DBNAME = rmancat) (ORACLE_HOME = /oracle/app/product/11.2.0/dbhome_1) (SID_NAME = rmancat) ) )

LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = redpanda)) ) (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = rmancat)) ) (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = lnx1)(PORT = 1521)) ) )

ADR_BASE_LISTENER = /oracle/app

Tnsnames file:

redpanda =

2/13


(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = lnx1)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = redpanda) ) )

rmancat = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = lnx1)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = rmancat) ) )

Create A Password File For The New Database

[oracle@lnx1 dbs]$ orapwd file=orapwredpanda password=oracle

Create An Init.Ora For The New Database Create the pfile using create pfile from spfile from the source database, then edit it changing all occurrences of old database name to new name

*.audit_file_dest='/oracle/app/admin/redpanda/adump'*.audit_trail='db'*.compatible='11.2.0.0.0'#*.control_files='’*.db_block_size=8192*.db_create_file_dest='/oracle/app/oradata'*.db_domain=''*.db_name='redpanda'*.db_recovery_file_dest='/oracle/app/flash_recovery_area'*.db_recovery_file_dest_size=4039114752*.diagnostic_dest='/oracle/app'*.dispatchers='(PROTOCOL=TCP) (SERVICE=redpandaXDB)'*.memory_target=262144000*.open_cursors=300*.processes=150*.remote_login_passwordfile='EXCLUSIVE'

3/13


*.undo_tablespace='UNDOTBS1'

Create The Admin Directory For The New Database

mkdir –p /oracle/app/admin/redpanda/adump

Shutdown And Startup Mount The Source Database

This is required if the source database is in no archivelog mode.

SQL> shutdown immediate;Database closed.Database dismounted.ORACLE instance shut down.

SQL> startup mountORACLE instance started.

Startup Nomount The New Database

SQL> startup nomount ORACLE instance started.

Connect To The Target (Source) And Auxiliary (New Clone) Databases Using Rman

[oracle@lnx1 dbs]$ Rman target sys/oracle@rmancat auxiliary sys/oracle@redpanda

Recovery Manager: Release 11.2.0.1.0 - Production on Sat Mar 20 17:00:45 2010

Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.

connected to target database: RMANCAT (DBID=3799896238, not open)connected to auxiliary database: REDPANDA (not mounted)

4/13


Execute The Duplicate Command

RMAN> DUPLICATE TARGET DATABASE TO REDPANDA FROM ACTIVE DATABASE;Starting Duplicate Db at 20-MAR-10using target database control file instead of recovery catalogallocated channel: ORA_AUX_DISK_1channel ORA_AUX_DISK_1: SID=19 device type=DISK

contents of Memory Script:{ sql clone "create spfile from memory";}executing Memory Script

sql statement: create spfile from memory

contents of Memory Script:{ shutdown clone immediate; startup clone nomount;}executing Memory Script

Oracle instance shut down

connected to auxiliary database (not started)Oracle instance started

Total System Global Area 263639040 bytes

Fixed Size 1335892 bytesVariable Size 205524396 bytesDatabase Buffers 54525952 bytesRedo Buffers 2252800 bytes

contents of Memory Script:{ sql clone "alter system set control_files = ''/oracle/app/oradata/REDPANDA/controlfile/o1_mf_5t9rsv87_.ctl'', ''/oracle/app/flash_recovery_area/REDPANDA/controlfile/o1_mf_5t9rsv8j_.ctl'' comment= ''Set by RMAN'' scope=spfile"; sql clone "alter system set db_name = ''RMANCAT'' comment= ''Modified by RMAN duplicate'' scope=spfile"; sql clone "alter system set db_unique_name =

5/13


''REDPANDA'' comment= ''Modified by RMAN duplicate'' scope=spfile"; shutdown clone immediate; startup clone force nomount backup as copy current controlfile auxiliary format '/oracle/app/oradata/REDPANDA/controlfile/o1_mf_5t9rsv91_.ctl'; restore clone controlfile to '/oracle/app/flash_recovery_area/REDPANDA/controlfile/o1_mf_5t9rsv97_.ctl' from '/oracle/app/oradata/REDPANDA/controlfile/o1_mf_5t9rsv91_.ctl'; sql clone "alter system set control_files = ''/oracle/app/oradata/REDPANDA/controlfile/o1_mf_5t9rsv91_.ctl'', ''/oracle/app/flash_recovery_area/REDPANDA/controlfile/o1_mf_5t9rsv97_.ctl'' comment= ''Set by RMAN'' scope=spfile"; shutdown clone immediate; startup clone nomount; alter clone database mount;}executing Memory Script

sql statement: alter system set control_files = ''/oracle/app/oradata/REDPANDA/controlfile/o1_mf_5t9rsv87_.ctl'', ''/oracle/app/flash_recovery_area/REDPANDA/controlfile/o1_mf_5t9rsv8j_.ctl'' comment= ''Set by RMAN'' scope=spfile

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

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


Oracle instance started



Starting backup at 20-MAR-10allocated channel: ORA_DISK_1channel ORA_DISK_1: SID=18 device type=DISKchannel ORA_DISK_1: starting datafile copycopying current control file

6/13


output file name=/oracle/app/product/11.2.0/dbhome_1/dbs/snapcf_rmancat.f tag=TAG20100320T170124 RECID=3 STAMP=714157285channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03Finished backup at 20-MAR-10

Starting restore at 20-MAR-10allocated channel: ORA_AUX_DISK_1channel ORA_AUX_DISK_1: SID=19 device type=DISK

channel ORA_AUX_DISK_1: copied control file copyFinished restore at 20-MAR-10

sql statement: alter system set control_files = ''/oracle/app/oradata/REDPANDA/controlfile/o1_mf_5t9rsv91_.ctl'', ''/oracle/app/flash_recovery_area/REDPANDA/controlfile/o1_mf_5t9rsv97_.ctl'' comment= ''Set by RMAN'' scope=spfile





database mounted

contents of Memory Script:{ set newname for clone datafile 1 to new; set newname for clone datafile 2 to new; set newname for clone datafile 3 to new; set newname for clone datafile 4 to new; backup as copy reuse datafile 1 auxiliary format new datafile 2 auxiliary format new datafile 3 auxiliary format new datafile 4 auxiliary format new ;}executing Memory Script

executing command: SET NEWNAME


7/13




Starting backup at 20-MAR-10using channel ORA_DISK_1channel ORA_DISK_1: starting datafile copyinput datafile file number=00001 name=/oracle/app/oradata/RMANCAT/datafile/o1_mf_system_5t9jpq6z_.dbfoutput file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_system_08l92b7r_.dbf tag=TAG20100320T170146channel ORA_DISK_1: datafile copy complete, elapsed time: 00:01:25channel ORA_DISK_1: starting datafile copyinput datafile file number=00002 name=/oracle/app/oradata/RMANCAT/datafile/o1_mf_sysaux_5t9jpqfm_.dbfoutput file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_sysaux_09l92bag_.dbf tag=TAG20100320T170146channel ORA_DISK_1: datafile copy complete, elapsed time: 00:01:15channel ORA_DISK_1: starting datafile copyinput datafile file number=00003 name=/oracle/app/oradata/RMANCAT/datafile/o1_mf_undotbs1_5t9jpqj4_.dbfoutput file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_undotbs1_0al92bcs_.dbf tag=TAG20100320T170146channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07channel ORA_DISK_1: starting datafile copyinput datafile file number=00004 name=/oracle/app/oradata/RMANCAT/datafile/o1_mf_users_5t9jpqlz_.dbfoutput file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_users_0bl92bd3_.dbf tag=TAG20100320T170146channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01Finished backup at 20-MAR-10

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

datafile 1 switched to datafile copy

8/13


input datafile copy RECID=3 STAMP=714157476 file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_system_08l92b7r_.dbfdatafile 2 switched to datafile copyinput datafile copy RECID=4 STAMP=714157476 file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_sysaux_09l92bag_.dbfdatafile 3 switched to datafile copyinput datafile copy RECID=5 STAMP=714157476 file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_undotbs1_0al92bcs_.dbfdatafile 4 switched to datafile copyinput datafile copy RECID=6 STAMP=714157476 file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_users_0bl92bd3_.dbf

contents of Memory Script:{ recover clone database noredo delete archivelog ;}executing Memory Script

Starting recover at 20-MAR-10allocated channel: ORA_AUX_DISK_1channel ORA_AUX_DISK_1: SID=18 device type=DISK

Finished recover at 20-MAR-10

contents of Memory Script:{ shutdown clone immediate; startup clone nomount; sql clone "alter system set db_name = ''REDPANDA'' 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 dismountedOracle instance shut down


9/13




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

sql statement: alter system reset db_unique_name scope=spfile




Fixed Size 1335892 bytesVariable Size 205524396 bytesDatabase Buffers 54525952 bytesRedo Buffers 2252800 bytessql statement: CREATE CONTROLFILE REUSE SET DATABASE "REDPANDA" RESETLOGS NOARCHIVELOG 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 '/oracle/app/oradata/REDPANDA/datafile/o1_mf_system_08l92b7r_.dbf' CHARACTER SET WE8MSWIN1252

contents of Memory Script:{ set newname for clone tempfile 1 to new; switch clone tempfile all; catalog clone datafilecopy "/oracle/app/oradata/REDPANDA/datafile/o1_mf_sysaux_09l92bag_.dbf", "/oracle/app/oradata/REDPANDA/datafile/o1_mf_undotbs1_0al92bcs_.dbf",

10/13


"/oracle/app/oradata/REDPANDA/datafile/o1_mf_users_0bl92bd3_.dbf"; switch clone datafile all;}executing Memory Script


renamed tempfile 1 to /oracle/app/oradata/REDPANDA/datafile/o1_mf_temp_%u_.tmp in control file

cataloged datafile copydatafile copy file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_sysaux_09l92bag_.dbf RECID=1 STAMP=714157503cataloged datafile copydatafile copy file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_undotbs1_0al92bcs_.dbf RECID=2 STAMP=714157503cataloged datafile copydatafile copy file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_users_0bl92bd3_.dbf RECID=3 STAMP=714157503

datafile 2 switched to datafile copyinput datafile copy RECID=1 STAMP=714157503 file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_sysaux_09l92bag_.dbfdatafile 3 switched to datafile copyinput datafile copy RECID=2 STAMP=714157503 file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_undotbs1_0al92bcs_.dbfdatafile 4 switched to datafile copyinput datafile copy RECID=3 STAMP=714157503 file name=/oracle/app/oradata/REDPANDA/datafile/o1_mf_users_0bl92bd3_.dbf

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

database openedFinished Duplicate Db at 20-MAR-10

11/13


Remove The Old Pfile

The duplicate database created an spfile that has the new controlfile names in it, the old pfile, without controlfiles can be removed

[oracle@lnx1 dbs]$ rm initredpanda.ora

Check The New Database

ORACLE_SID=redpandaORACLE_HOME=/oracle/app/product/11.2.0/dbhome_1

[oracle@lnx1 dbs]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Sat Mar 20 17:31:46 2010

Copyright (c) 1982, 2009, Oracle. All rights reserved.

Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> archive log listDatabase log mode No Archive ModeAutomatic archival DisabledArchive destination USE_DB_RECOVERY_FILE_DESTOldest online log sequence 1Current log sequence 1

SQL> select name from v$datafile;

NAME-----------------------------------------------------------/oracle/app/oradata/REDPANDA/datafile/o1_mf_system_08l92b7r_.dbf/oracle/app/oradata/REDPANDA/datafile/o1_mf_sysaux_09l92bag_.dbf

12/13


/oracle/app/oradata/REDPANDA/datafile/o1_mf_undotbs1_0al92bcs_.dbf/oracle/app/oradata/REDPANDA/datafile/o1_mf_users_0bl92bd3_.dbf

SQL> show sga

Total System Global Area 263639040 bytesFixed Size 1335892 bytesVariable Size 209718700 bytesDatabase Buffers 50331648 bytesRedo Buffers 2252800 bytes

13/13

Rman Duplicate From Active Database

Documents

Transcript of Rman Duplicate From Active Database