Step By Step Guide On Creating Physical Standby Using RMAN(ASM)

Step By Step Guide On Creating Physical Standby Using RMAN(ASM)

April 15, 2012ukatru454Leave a commentGo to comments

This article explains steps to create physical standby database using Oracle Database 11g RMAN  FROM ACTIVE DATABASE capability to the DUPLICATE FOR STANDBY command.
Primary database Name:primdv1
Standby database Name:stbydv1
Step1)Make sure primary database is running in archive log mode.
2)Determine if FORCE LOGGING is enabled. If it is not enabled, enable FORCE LOGGING mode.
SQL> SELECT force_logging FROM v$database;
FOR
—
NO
SQL> ALTER DATABASE FORCE LOGGING;
Database altered.
SQL> SELECT force_logging FROM v$database;
FOR
—
YES
3)Configure the primary database to receive redo data, by adding the standby logfiles to the primary
It is highly recommended that you have one more standby redo log group than you have online redo log groups as the primary database.
The files must be the same size or larger than the primary database’s online redo logs.
ALTER DATABASE ADD STANDBY LOGFILE
‘+DATA1/primdv1/srl01.log’
SIZE 52428800
/
ALTER DATABASE ADD STANDBY LOGFILE
‘+DATA1/primdv1/srl02.log’
SIZE 52428800
/
ALTER DATABASE ADD STANDBY LOGFILE
‘+DATA1/primdv1/srl03.log’
SIZE 52428800
/
ALTER DATABASE ADD STANDBY LOGFILE
‘+DATA1/primdv1/srl04.log’
SIZE 52428800
/
4)Set primary database initialization parameters
ALTER SYSTEM SET log_archive_config = ‘dg_config=(primdv1,stbydv1)’;
ALTER SYSTEM SET log_archive_dest_2 =
‘service=stbydv1 async valid_for=(online_logfile,primary_role) db_unique_name=stbydv1′;
show parameter log_archive_config
show parameter log_archive_dest_2
If you get following error
ERROR at line 1:
ORA-02097: parameter cannot be modified because specified value is invalid
ORA-16019: cannot use LOG_ARCHIVE_DEST_1 with LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST
Solution :
1. Reset the LOG_ARCHIVE_DEST to NULL value :
SQL> ALTER SYSTEM set log_archive_dest=”;
2. Set the LOG_ARCHIVE_DEST_1 to the value set to LOG_ARCHIVE_DEST before
SQL> ALTER SYSTEM set log_archive_dest_1=’LOCATION=/…’;
if you use this code, you dont need to restart database:
ALTER SYSTEM SET LOG_ARCHIVE_DEST_1=’LOCATION=h:\oradata\archive’ SCOPE=BOTH;
To check archival destination issue is ok:
show parameter LOG_ARCHIVE_DEST;
select DEST_ID, DEST_NAME,DESTINATION from v$archive_dest;
update tnsnames.ora file with the following entries on both hosts:
PRIMDV1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dgprim0001.ukatru.com)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = primdv1.ukatru.com)
)
)
STBYDV1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dgstby0001.ukatru.com)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = stbydv1.ukatru.com)
)
)
update the listner.ora with the following values on standby database:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = standby1.example.com)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = standby1)
)
)
copy the remote login password file (orapwprimdv1) from the primary database system to the $ORACLE_HOME/dbs directory on the
standby database system, renaming it to orapwstbydv1.
In the $ORACLE_HOME/dbs directory of the standby system, create an initialization parameter file named initstbydv1.ora
containing a single parameter: DB_NAME=stbydv1(i.e. stbydv1)
On the standby system, change to the /u01/app/oracle/admin directory. Create a directory with a name that matches your physical standby SID (i.e. stbydv1).
Change to the newly created directory (i.e. stbydv1) and create an adump directory.
now on the standby system log into database
export ORACLE_SID=stbydv1
dgstby0001:/u01/app/oracle/admin/stbydv1>export ORACLE_SID=stbydv1
dgstby0001:/u01/app/oracle/admin/stbydv1>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Sat Apr 14 22:57:24 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to an idle instance.
SQL>
SQL> startup nomount pfile=$ORACLE_HOME/dbs/initstbydv1.ora
ORACLE instance started.
Total System Global Area 238034944 bytes
Fixed Size 2227136 bytes
Variable Size 180356160 bytes
Database Buffers 50331648 bytes
Redo Buffers 5120000 bytes
RMAN> connect target sys
target database Password:
connected to target database: PRIMDV1 (DBID=1462743077)
RMAN> connect auxiliary sys@stbydv1
auxiliary database Password:
connected to auxiliary database: STBYDV1 (not mounted)
Below is the rman script to create standby database:
run {
allocate channel prmy1 type disk;
allocate channel prmy2 type disk;
allocate channel prmy3 type disk;
allocate channel prmy4 type disk;
allocate auxiliary channel stby type disk;
duplicate target database for standby from active database
spfile
parameter_value_convert ‘primdv1′,’stbydv1′
set db_unique_name=’stbydv1′
set db_file_name_convert=’/primdv1/’,’/stbydv1/’
set log_file_name_convert=’/primdv1/’,’/stbydv1/’
set control_files=’+DATA1′
set log_archive_max_processes=’5′
set fal_client=’stbydv1′
set fal_server=’primdv1′
set standby_file_management=’AUTO’
set log_archive_config=’dg_config=(primdv1,stbydv1)’
set log_archive_dest_2=’service=primdv1 ASYNC valid_for=(ONLINE_LOGFILE,PRIMARY_ROLE) db_unique_name=primdv1′
;
}
channel prmy3: SID=55 device type=DISK
allocated channel: prmy4
channel prmy4: SID=56 device type=DISK
allocated channel: stby
channel stby: SID=19 device type=DISK
Starting Duplicate Db at 14-APR-12
contents of Memory Script:
{
backup as copy reuse
targetfile ‘/u01/app/oracle/product/11.2.0.3/db_1/dbs/orapwprimdv1’ auxiliary format
‘/u01/app/oracle/product/11.2.0.3/db_1/dbs/orapwstbydv1’ targetfile
‘+DATA1/primdv1/spfileprimdv1.ora’ auxiliary format
‘/u01/app/oracle/product/11.2.0.3/db_1/dbs/spfilestbydv1.ora’ ;
sql clone “alter system set spfile= ”/u01/app/oracle/product/11.2.0.3/db_1/dbs/spfilestbydv1.ora””;
}
executing Memory Script
Starting backup at 14-APR-12
Finished backup at 14-APR-12
sql statement: alter system set spfile= ”/u01/app/oracle/product/11.2.0.3/db_1/dbs/spfilestbydv1.ora”
contents of Memory Script:
{
sql clone “alter system set audit_file_dest =
”/u01/app/oracle/admin/stbydv1/adump” comment=
”” scope=spfile”;
sql clone “alter system set dispatchers =
”(PROTOCOL=TCP) (SERVICE=stbydv1XDB)” comment=
”” scope=spfile”;
sql clone “alter system set log_archive_dest_1 =
”LOCATION=+DATA1/stbydv1” comment=
”” scope=spfile”;
sql clone “alter system set db_unique_name =
”stbydv1” comment=
”” scope=spfile”;
sql clone “alter system set db_file_name_convert =
”/primdv1/”, ”/stbydv1/” comment=
”” scope=spfile”;
sql clone “alter system set log_file_name_convert =
”/primdv1/”, ”/stbydv1/” comment=
”” scope=spfile”;
sql clone “alter system set control_files =
”+DATA1” comment=
”” scope=spfile”;
sql clone “alter system set log_archive_max_processes =
5 comment=
”” scope=spfile”;
sql clone “alter system set fal_client =
”stbydv1” comment=
”” scope=spfile”;
sql clone “alter system set fal_server =
”primdv1” comment=
”” scope=spfile”;
sql clone “alter system set standby_file_management =
”AUTO” comment=
”” scope=spfile”;
sql clone “alter system set log_archive_config =
”dg_config=(primdv1,stbydv1)” comment=
”” scope=spfile”;
sql clone “alter system set log_archive_dest_2 =
”service=primdv1 ASYNC valid_for=(ONLINE_LOGFILE,PRIMARY_ROLE) db_unique_name=primdv1” comment=
”” scope=spfile”;
shutdown clone immediate;
startup clone nomount;
}
executing Memory Script
sql statement: alter system set audit_file_dest = ”/u01/app/oracle/admin/stbydv1/adump” comment= ”” scope=spfile
sql statement: alter system set dispatchers = ”(PROTOCOL=TCP) (SERVICE=stbydv1XDB)” comment= ”” scope=spfile
sql statement: alter system set log_archive_dest_1 = ”LOCATION=+DATA1/stbydv1” comment= ”” scope=spfile
sql statement: alter system set db_unique_name = ”stbydv1” comment= ”” scope=spfile
sql statement: alter system set db_file_name_convert = ”/primdv1/”, ”/stbydv1/” comment= ”” scope=spfile
sql statement: alter system set log_file_name_convert = ”/primdv1/”, ”/stbydv1/” comment= ”” scope=spfile
sql statement: alter system set control_files = ”+DATA1” comment= ”” scope=spfile
sql statement: alter system set log_archive_max_processes = 5 comment= ”” scope=spfile
sql statement: alter system set fal_client = ”stbydv1” comment= ”” scope=spfile
sql statement: alter system set fal_server = ”primdv1” comment= ”” scope=spfile
sql statement: alter system set standby_file_management = ”AUTO” comment= ”” scope=spfile
sql statement: alter system set log_archive_config = ”dg_config=(primdv1,stbydv1)” comment= ”” scope=spfile
sql statement: alter system set log_archive_dest_2 = ”service=primdv1 ASYNC valid_for=(ONLINE_LOGFILE,PRIMARY_ROLE) db_unique_name=primdv1” comment= ”” scope=spfile
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 1068937216 bytes
Fixed Size 2235208 bytes
Variable Size 616563896 bytes
Database Buffers 444596224 bytes
Redo Buffers 5541888 bytes
allocated channel: stby
channel stby: SID=21 device type=DISK
contents of Memory Script:
{
sql clone “alter system set control_files =
”+DATA1/stbydv1/controlfile/current.256.780620989” comment=
”Set by RMAN” scope=spfile”;
backup as copy current controlfile for standby auxiliary format ‘+DATA1/stbydv1/controlfile/current.257.780620989’;
sql clone “alter system set control_files =
”+DATA1/stbydv1/controlfile/current.257.780620989” comment=
”Set by RMAN” scope=spfile”;
shutdown clone immediate;
startup clone nomount;
}
executing Memory Script
sql statement: alter system set control_files = ”+DATA1/stbydv1/controlfile/current.256.780620989” comment= ”Set by RMAN” scope=spfile
Starting backup at 14-APR-12
channel prmy1: starting datafile copy
copying standby control file
output file name=/u01/app/oracle/product/11.2.0.3/db_1/dbs/snapcf_primdv1.f tag=TAG20120414T230949 RECID=1 STAMP=780620989
channel prmy1: datafile copy complete, elapsed time: 00:00:03
Finished backup at 14-APR-12
sql statement: alter system set control_files = ”+DATA1/stbydv1/controlfile/current.257.780620989” comment= ”Set by RMAN” scope=spfile
Oracle instance shut down
connected to auxiliary database (not started)
Oracle instance started
Total System Global Area 1068937216 bytes
Fixed Size 2235208 bytes
Variable Size 616563896 bytes
Database Buffers 444596224 bytes
Redo Buffers 5541888 bytes
allocated channel: stby
channel stby: SID=23 device type=DISK
contents of Memory Script:
{
sql clone ‘alter database mount standby database’;
}
executing Memory Script
sql statement: alter database mount standby database
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
“+data1”;
switch clone tempfile all;
set newname for datafile 1 to
“+data1”;
set newname for datafile 2 to
“+data1”;
set newname for datafile 3 to
“+data1”;
set newname for datafile 4 to
“+data1”;
backup as copy reuse
datafile 1 auxiliary format
“+data1” datafile
2 auxiliary format
“+data1” datafile
3 auxiliary format
“+data1” datafile
4 auxiliary format
“+data1” ;
sql ‘alter system archive log current’;
}
executing Memory Script
executing command: SET NEWNAME
renamed tempfile 1 to +data1 in control file
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
Starting backup at 14-APR-12
channel prmy1: starting datafile copy
input datafile file number=00001 name=+DATA1/primdv1/datafile/system.261.780607599
channel prmy2: starting datafile copy
input datafile file number=00002 name=+DATA1/primdv1/datafile/sysaux.262.780607621
channel prmy3: starting datafile copy
input datafile file number=00003 name=+DATA1/primdv1/datafile/undotbs1.263.780607639
channel prmy4: starting datafile copy
input datafile file number=00004 name=+DATA1/primdv1/datafile/users.265.780607653
output file name=+DATA1/stbydv1/datafile/users.260.780621011 tag=TAG20120414T231009
channel prmy4: datafile copy complete, elapsed time: 00:00:08
output file name=+DATA1/stbydv1/datafile/undotbs1.261.780621011 tag=TAG20120414T231009
channel prmy3: datafile copy complete, elapsed time: 00:01:47
output file name=+DATA1/stbydv1/datafile/system.258.780621011 tag=TAG20120414T231009
channel prmy1: datafile copy complete, elapsed time: 00:02:28
output file name=+DATA1/stbydv1/datafile/sysaux.259.780621011 tag=TAG20120414T231009
channel prmy2: datafile copy complete, elapsed time: 00:02:27
Finished backup at 14-APR-12
sql statement: alter system archive log current
contents of Memory Script:
{
switch clone datafile all;
}
executing Memory Script
datafile 1 switched to datafile copy
input datafile copy RECID=1 STAMP=780621158 file name=+DATA1/stbydv1/datafile/system.258.780621011
datafile 2 switched to datafile copy
input datafile copy RECID=2 STAMP=780621158 file name=+DATA1/stbydv1/datafile/sysaux.259.780621011
datafile 3 switched to datafile copy
input datafile copy RECID=3 STAMP=780621158 file name=+DATA1/stbydv1/datafile/undotbs1.261.780621011
datafile 4 switched to datafile copy
input datafile copy RECID=4 STAMP=780621158 file name=+DATA1/stbydv1/datafile/users.260.780621011
Finished Duplicate Db at 14-APR-12
released channel: prmy1
released channel: prmy2
released channel: prmy3
released channel: prmy4
released channel: stby
RMAN> **end-of-file**
Perform a log switch on the primary database and redo will start being sent to the standby.
dgprim0001:/u01/app/oracle/wkdir>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Sat Apr 14 23:14:57 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 – 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options
SQL> alter system switch logfile;
System altered.
dgstby0001:/u01/app/oracle/product/11.2.0.3/db_1/network/admin>sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Sat Apr 14 23:15:50 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 – 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options
SQL> alter database recover managed standby database
2 using current logfile disconnect;
Database altered.
Now Verify that the Physical Standby Database is Performing Correctly
SELECT sequence#, first_time, next_time, applied
FROM v$archived_log
ORDER BY sequence#
/
SQL> SELECT sequence#, first_time, next_time, applied
FROM v$archived_log
ORDER BY sequence#
/
2 3 4
SEQUENCE# FIRST_TIM NEXT_TIME APPLIED
———- ——— ——— ———
31 14-APR-12 14-APR-12 YES
32 14-APR-12 14-APR-12 YES
33 14-APR-12 14-APR-12 YES
34 14-APR-12 14-APR-12 YES
35 14-APR-12 14-APR-12 YES
36 14-APR-12 14-APR-12 IN-MEMORY
6 rows selected.