Migrate a normal file-system Oracle database to ASM database
by Michael Georgiou
Oracle Linux 5EL 64 bits , Oracle 10.2.0.4 64 bits
On ASM instance create a new disk group that will host the new database
CREATE DISKGROUP Dgroup2 NORMAL REDUNDANCY
FAILGROUP controller1 DISK
'ORCL:DISK5',
'ORCL:DISK6'
FAILGROUP controller2 DISK
'ORCL:DISK7' ,
'ORCL:DISK8'
/
Connect to Database ORCLF that is created using OMF files ( Filesystem)
[oracle@asm_machine oracle]$ export ORACLE_SID=orclf
[oracle@asm_machine oracle]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Feb 2 22:28:46 2011
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
---------------------------------------------------------------------------------------------
Check if the block change tracking is enable
SQL> select status from V$block_change_tracking;
STATUS
----------
DISABLED
if enable the disable it using the command
alter database disable block change tracking;
---------------------------------------------------------------------------------------------
Change the db_create_file_dest and db_recovery_file_dest to point on '+DGROUP2'
SQL> show parameter db_create
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_create_file_dest string /oracle/oradata
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_recovery_file_dest string /oracle/flash_recovery_area
db_recovery_file_dest_size big integer 2G
SQL>
---------------------------------------------------------------------------------------------
Change OMF to ASM diskgroup Dgroup2
alter system set db_create_file_dest='+DGROUP2' scope=spfile;
alter system set db_recovery_file_dest='+DGROUP2' scope=spfile;
--Oracle recommends to use a different disk group for the recovery area. For the testing purposes I use the same disk group.
Recreate Control Files in new ASM location
In order to create the control file in the ASM , you need to change the control_files in spfile as follows:
alter system set control_files='+DGROUP2' scope=spfile;
shutdown database
SQL>shutdown immediate
connect to rman
RMAN> connect target
connected to target database (not started)
RMAN> startup nomount
Oracle instance started
Total System Global Area 260046848 bytes
Fixed Size 2083168 bytes
Variable Size 83887776 bytes
Database Buffers 167772160 bytes
Redo Buffers 6303744 bytes
RMAN> restore controlfile from '/oracle/oradata/ORCLF/controlfile/o1_mf_6nmgt4mo_.ctl';
Starting restore at 02-FEB-11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
channel ORA_DISK_1: copied control file copy
output filename=+DGROUP2/orclf/controlfile/current.256.742086217
Finished restore at 02-FEB-11
RMAN>exit
[oracle@asm_machine dbs]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Feb 2 23:05:29 2011
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select open_mode from v$database;
select open_mode from v$database
*
ERROR at line 1:
ORA-01507: database not mounted
SQL> alter system set control_files='+DGROUP2/orclf/controlfile/current.256.742086217' scope=spfile;
System altered.
SQL> alter database mount;
Database altered.
SQL>exit
Migrate the whole database using RMAN COPY command
rman
RMAN> connect target
connected to target database: ORCLF (DBID=3004244068, not open)
RMAN> backup as copy database format '+DGROUP2';
Starting backup at 02-FEB-11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=159 devtype=DISK
channel ORA_DISK_1: starting datafile copy
input datafile fno=00001 name=/oracle/oradata/ORCLF/datafile/o1_mf_system_6nmgrm37_.dbf
output filename=+DGROUP2/orclf/datafile/system.257.742086491 tag=TAG20110202T230810 recid=1 stamp=742086537
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:55
channel ORA_DISK_1: starting datafile copy
input datafile fno=00003 name=/oracle/oradata/ORCLF/datafile/o1_mf_sysaux_6nmgrm3d_.dbf
output filename=+DGROUP2/orclf/datafile/sysaux.258.742086545 tag=TAG20110202T230810 recid=2 stamp=742086573
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile copy
input datafile fno=00002 name=/oracle/oradata/ORCLF/datafile/o1_mf_undotbs1_6nmgrm64_.dbf
output filename=+DGROUP2/orclf/datafile/undotbs1.259.742086581 tag=TAG20110202T230810 recid=3 stamp=742086586
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07
channel ORA_DISK_1: starting datafile copy
input datafile fno=00004 name=/oracle/oradata/ORCLF/datafile/o1_mf_users_6nmgrm6c_.dbf
output filename=+DGROUP2/orclf/datafile/users.260.742086587 tag=TAG20110202T230810 recid=4 stamp=742086590
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting datafile copy
copying current control file
output filename=+DGROUP2/orclf/controlfile/backup.261.742086591 tag=TAG20110202T230810 recid=5 stamp=742086595
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:08
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 02-FEB-11
channel ORA_DISK_1: finished piece 1 at 02-FEB-11
piece handle=+DGROUP2/orclf/backupset/2011_02_02/nnsnf0_tag20110202t230810_0.262.742086599 tag=TAG20110202T230810 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:08
Finished backup at 02-FEB-11
RMAN> switch database to copy;
datafile 1 switched to datafile copy "+DGROUP2/orclf/datafile/system.257.742086491"
datafile 2 switched to datafile copy "+DGROUP2/orclf/datafile/undotbs1.259.742086581"
datafile 3 switched to datafile copy "+DGROUP2/orclf/datafile/sysaux.258.742086545"
datafile 4 switched to datafile copy "+DGROUP2/orclf/datafile/users.260.742086587"
RMAN> recover database;
Starting recover at 02-FEB-11
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:01
Finished recover at 02-FEB-11
RMAN> alter database open;
database opened
RMAN>exit
Migrate Temp tablespace and Redo logs
SQL> select FILE_NAME, TABLESPACE_NAME from dba_temp_files;
FILE_NAME
--------------------------------------------------------------------------------
TABLESPACE_NAME
------------------------------
/oracle/oradata/ORCLF/datafile/o1_mf_temp_6nmgtqkx_.tmp
TEMP
SQL> create temporary tablespace TEMP01 tempfile '+DGROUP2' size 128M autoextend off;
Tablespace created.
SQL> alter database default temporary tablespace TEMP01;
Database altered.
SQL> drop tablespace TEMP;
Tablespace dropped.
SQL> select FILE_NAME, TABLESPACE_NAME from dba_temp_files;
FILE_NAME
--------------------------------------------------------------------------------
TABLESPACE_NAME
------------------------------
+DGROUP2/orclf/tempfile/temp01.263.742086965
TEMP01
SQL>
SQL> ALTER DATABASE ADD LOGFILE MEMBER '+DGROUP2' TO GROUP 1;
SQL> ALTER DATABASE ADD LOGFILE MEMBER '+DGROUP2' TO GROUP 2;
SQL> ALTER DATABASE ADD LOGFILE MEMBER '+DGROUP2' TO GROUP 3;
SQL> ALTER DATABASE ADD LOGFILE MEMBER '+DGROUP2' TO GROUP 1;
SQL> ALTER DATABASE ADD LOGFILE MEMBER '+DGROUP2' TO GROUP 2;
SQL> ALTER DATABASE ADD LOGFILE MEMBER '+DGROUP2' TO GROUP 3;
SQL> ALTER DATABASE ADD LOGFILE GROUP 4 '+DGROUP2' ;
SQL> ALTER DATABASE ADD LOGFILE MEMBER '+DGROUP2' TO GROUP 4;
SQL>ALTER DATABASE ADD LOGFILE MEMBER '+DGROUP2' TO GROUP 4;
SQL> select group#,members,status from v$log;
GROUP# MEMBERS STATUS
---------- ---------- ----------------
1 4 INACTIVE
2 4 INACTIVE
3 4 INACTIVE
4 2 CURRENT
SQL> select member from v$logfile;
MEMBER
--------------------------------------------------------------------------------
/oracle/oradata/ORCLF/onlinelog/o1_mf_3_6nmgtdfp_.log
/oracle/flash_recovery_area/ORCLF/onlinelog/o1_mf_3_6nmgtfpq_.log
/oracle/oradata/ORCLF/onlinelog/o1_mf_2_6nmgtb0c_.log
/oracle/flash_recovery_area/ORCLF/onlinelog/o1_mf_2_6nmgtc7f_.log
/oracle/oradata/ORCLF/onlinelog/o1_mf_1_6nmgt7lv_.log
/oracle/flash_recovery_area/ORCLF/onlinelog/o1_mf_1_6nmgt8wc_.log
+DGROUP2/orclf/onlinelog/group_1.264.742087309
+DGROUP2/orclf/onlinelog/group_2.265.742087325
+DGROUP2/orclf/onlinelog/group_3.266.742087431
+DGROUP2/orclf/onlinelog/group_4.267.742087451
+DGROUP2/orclf/onlinelog/group_1.268.742087647
MEMBER
--------------------------------------------------------------------------------
+DGROUP2/orclf/onlinelog/group_2.269.742087669
+DGROUP2/orclf/onlinelog/group_3.270.742087687
+DGROUP2/orclf/onlinelog/group_4.271.742087703
14 rows selected.
SQL>
ALTER DATABASE DROP LOGFILE MEMBER '/oracle/oradata/ORCLF/onlinelog/o1_mf_2_6nmgtb0c_.log';
ALTER DATABASE DROP LOGFILE MEMBER '/oracle/flash_recovery_area/ORCLF/onlinelog/o1_mf_2_6nmgtc7f_.log';
ALTER DATABASE DROP LOGFILE MEMBER '/oracle/oradata/ORCLF/onlinelog/o1_mf_3_6nmgtdfp_.log';
ALTER DATABASE DROP LOGFILE MEMBER '/oracle/flash_recovery_area/ORCLF/onlinelog/o1_mf_3_6nmgtfpq_.log';
ALTER DATABASE DROP LOGFILE MEMBER '/oracle/oradata/ORCLF/onlinelog/o1_mf_1_6nmgt7lv_.log';
ALTER DATABASE DROP LOGFILE MEMBER '/oracle/flash_recovery_area/ORCLF/onlinelog/o1_mf_1_6nmgt8wc_.log';
SQL> select member from v$logfile;
MEMBER
--------------------------------------------------------------------------------
+DGROUP2/orclf/onlinelog/group_1.264.742087309
+DGROUP2/orclf/onlinelog/group_2.265.742087325
+DGROUP2/orclf/onlinelog/group_3.266.742087431
+DGROUP2/orclf/onlinelog/group_4.267.742087451
+DGROUP2/orclf/onlinelog/group_1.268.742087647
+DGROUP2/orclf/onlinelog/group_2.269.742087669
+DGROUP2/orclf/onlinelog/group_3.270.742087687
+DGROUP2/orclf/onlinelog/group_4.271.742087703
8 rows selected.
