Applies to:
Oracle Server - Enterprise Edition - Version 11.1.0.6 to
11.2.0.4 [Release 11.1 to 11.2]
Information in this document applies to any
platform.
Goal
Step by step guide on how to create a physical standby
database using RMAN DUPLICATE FROM ACTIVE DATABASE command without shutting down
the primary and using primary active database files (No need to take a
backup)
This is feature available in 11g onwards.
In case you may want or
need more about your current topic - please also access the Backup & Recover
Community of Customers and Oracle Specialists directly via:
https://communities.oracle.com/p
... up_and_recovery/243
Database Name :- chicago
Primary
db_unique_name :- chicago
standby db_unique_name :- Boston
For duplicating
a NONE-Standby, see :
Note 452868.1 RMAN ‘Duplicate From Active
Database‘ Feature in 11G
Fix
1.Make the necessary changes to the primary
database.
a. Enable force logging.
b. Creating the password file if one
does not exist.
c. Create standby redologs.
d. Modify the parameter file
suitable for Dataguard.
2. Ensure that the sql*net connectivity is working
fine.
3. Create the standby database over the network using the
active(primary) database files.
a. Create the password file
b. Create the
initialization parameter file for the standby database (auxiliary
database)
c. Create the necessary mount points or the folders for the
database files
d. Run the standby creation ON STANDBY by connecting to
primary as target database.
DUPLICATE TARGET DATABASE
FOR
STANDBY
FROM ACTIVE DATABASE
SPFILE
PARAMETER_VALUE_CONVERT ‘‘, ‘‘
SET DB_FILE_NAME_CONVERT ‘‘,
‘‘
SET LOG_FILE_NAME_CONVERT ‘‘, ‘‘
SET
SGA_MAX_SIZE 200M
SET SGA_TARGET 125M;
4. Check the log
shipping and apply.
PROCEDURE :
While creating the standby database we use
the active database files i.e., this command will be useful in creating the
physical standby database using active database files over the network.
1.
Prepare the production database to be the primary database
a. Ensure that the
database is in archivelog mode .
SQL> select log_mode from
v$database;
LOG_MODE
------------
ARCHIVELOG
b. Enable force
logging
SQL> ALTER DATABASE FORCE LOGGING;
c. Create standby
redologs
SQL> alter database add standby logfile ‘<name>‘ size
<size>;
d. Modify the primary initialization parameter for dataguard on
primary,
SQL> alter system set
LOG_ARCHIVE_CONFIG=‘DG_CONFIG=(chicago,boston)‘;
System altered.
SQL>
alter system set
LOG_ARCHIVE_DEST_1=‘LOCATION=/u01/app/oracle/databases/chicago/redo/
VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=chicago‘;
System
altered.
SQL> alter system set LOG_ARCHIVE_DEST_2=‘SERVICE=boston LGWR
ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=boston‘;
System
altered.
SQL> alter system set LOG_ARCHIVE_DEST_STATE_1=ENABLE;
System
altered.
SQL> alter system set FAL_SERVER=boston;
System
altered.
SQL> alter system set FAL_CLIENT=chicago;
System
altered.
SQL> alter system set
DB_FILE_NAME_CONVERT=‘/u01/app/oracle/databases/boston/data/‘,‘/u01/app/oracle/databases/chicago/data‘
scope=spfile;
System altered.
SQL> alter system set
LOG_FILE_NAME_CONVERT=‘/u01/app/oracle/databases/boston/redo/‘,‘/u01/app/oracle/databases/chicago/redo‘
scope=spfile;
System altered.
2. Ensure that the sql*net connectivity is
working fine.
Insert a static entry for Boston in the listener.ora file of
the standby system.
SID_LIST_LISTENER =
(SID_LIST
=
(SID_DESC =
(GLOBAL_DBNAME =
boston.us.oracle.com)
(ORACLE_HOME =
/u01/app/oracle/product/OraHome111)
(SID_NAME =
boston)
)
)
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST =
<auxiliary host>)(PORT = 1521))
)
TNSNAMES.ORA for the
Primary and Standby should have BOTH entries
CHICAGO =
(DESCRIPTION
=
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = <target host>)(PORT =
1521))
)
(CONNECT_DATA =
(SERVICE_NAME = chicago.us.oracle.com))
)
BOSTON =
(DESCRIPTION =
(ADDRESS_LIST
=
(ADDRESS = (PROTOCOL = TCP)(HOST =
<auxiliary host>)(PORT = 1521))
)
(CONNECT_DATA = (SERVICE_NAME =
boston.us.oracle.com))
)
Check with the SQL*Net configuration using
the following commands on the Primary AND Standby
% tnsping chicago
%
tnsping boston
3. Create the standby database
a. Copy the password file
from the primary $ORACLE_HOME/dbs and rename it to the standby database
name.
The username is required to be SYS and the password needs to be the
same on the Primary and Standby.
The best practice for this is to copy the
passwordfile as suggested.
The password file name must match the instance
name/SID used at the standby site, not the DB_NAME.
b. Create a
initialization parameter with only one parameter
DB_NAME.
DB_NAME=chicago
DB_UNIQUE_NAME=boston
DB_BLOCK_SIZE=<same
as primary>
c. Create the necessary directories in the standby location to
place the datafiles and the trace files in the $ADR_HOME.
d. Set the
environment variable ORACLE_SID to the standby service and start the
standby-instance.
% export ORACLE_SID=boston
% sqlplus "/ as
sysdba"
SQL> startup nomount
pfile=$ORACLE_HOME/dbs/initcore1.ora
NOTE : Use either PFILE or SPFILE
#
Addtl. comment
# If DUPLICATE without TARGET connection is used you cannot
use SPFILE
# else getting
RMAN-05537: DUPLICATE without TARGET connection
when auxiliary instance is started with spfile cannot use SPFILE clause
e.
Verify if the connection ‘AS SYSDBA‘ is working
% sqlplus /nolog
SQL>
connect sys/<passwd<@boston AS
SYSDBA
connect
sys/<passwd>@chicago AS SYSDBA
f. On the primary system invoke the RMAN
executable and connect to the primary and the auxiliary database ( i.e., the
standby)
$ rman target sys/[email protected] auxiliary sys/[email protected]
connected
to target database: CHICAGO (DBID=761464750)
connected to auxiliary database:
BOSTON (not mounted)
RMAN> 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
‘chicago‘,‘boston‘
set db_unique_name=‘boston‘
set
db_file_name_convert=‘/chicago/‘,‘/boston/‘
set
log_file_name_convert=‘/chicago/‘,‘/boston/‘
set
control_files=‘/u01/app/oracle/oradata/control01.ctl‘
set
log_archive_max_processes=‘5‘
set fal_client=‘boston‘
set
fal_server=‘chicago‘
set standby_file_management=‘AUTO‘
set
log_archive_config=‘dg_config=(chicago,boston)‘
set
log_archive_dest_2=‘service=chicago ASYNC
valid_for=(ONLINE_LOGFILE,PRIMARY_ROLE)
db_unique_name=chicago‘
;
}
using target database control file instead
of recovery catalog
allocated channel: prmy1
channel prmy1: SID=147 device
type=DISK
allocated channel: prmy2
channel prmy2: SID=130 device
type=DISK
allocated channel: prmy3
channel prmy3: SID=137 device
type=DISK
allocated channel: prmy4
channel prmy4: SID=170 device
type=DISK
allocated channel: stby
channel stby: SID=98 device
type=DISK
Starting Duplicate Db at 19-MAY-08
contents of Memory
Script:
{
backup as copy reuse
file
‘/u02/app/oracle/product/11.1.0/db_1/dbs/orapwcore‘ auxiliary
format‘/u02/app/oracle/product/11.1.0/db_1/dbs/orapwcore1‘
file‘/u02/app/oracle/product/11.1.0/db_1/dbs/spfilecore.ora‘ auxiliary
format‘/u02/app/oracle/product/11.1.0/db_1/dbs/spfilecore1.ora‘ ;
sql clone
"alter system set spfile=
‘‘/u02/app/oracle/product/11.1.0/db_1/dbs/spfilecore1.ora‘‘";
}
executing
Memory Script
Starting backup at 19-MAY-08
Finished backup at
19-MAY-08
sql statement: alter system set spfile=
‘‘/u02/app/oracle/product/11.1.0/db_1/dbs/spfilecore1.ora‘‘
contents of
Memory Script:
{
sql clone "alter system set audit_file_dest
=‘‘/u02/app/oracle/admin/boston/adump‘‘ comment=‘‘‘‘ scope=spfile";
sql clone
"alter system set dispatchers =‘‘(PROTOCOL=TCP) (SERVICE=core1XDB)‘‘
comment=‘‘‘‘ scope=spfile";
sql clone "alter system set log_archive_dest_2
=‘‘service=core11 arch async VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
db_unique_name=boston‘‘ comment=‘‘‘‘ scope=spfile";
sql clone "alter system
set db_unique_name =‘‘boston‘‘ comment=‘‘‘‘ scope=spfile";
sql clone "alter
system set db_file_name_convert =‘‘/chicago/‘‘, ‘‘/boston/‘‘ comment=‘‘‘‘
scope=spfile";
sql clone "alter system set log_file_name_convert
=‘‘/chicago/‘‘, ‘‘/boston/‘‘ comment=‘‘‘‘ scope=spfile";
sql clone "alter
system set control_files =‘‘/u01/app/oracle/oradata/control01.ctl‘‘ comment=‘‘‘‘
scope=spfile";
sql clone "alter system set log_archive_max_processes =5
comment=‘‘‘‘ scope=spfile";
sql clone "alter system set fal_client
=‘‘boston‘‘ comment=‘‘‘‘ scope=spfile";
sql clone "alter system set
fal_server =‘‘chicago‘‘ 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=(chicago,boston)‘‘
comment=‘‘‘‘ scope=spfile";
sql clone "alter system set log_archive_dest_2
=‘‘service=chicago ASYNC valid_for=(ONLINE_LOGFILE,PRIMARY_ROLE)
db_unique_name=chicago‘‘ comment=‘‘‘‘ scope=spfile";
shutdown clone
immediate;
startup clone nomount ;
}
executing Memory Script
sql
statement: alter system set audit_file_dest =
‘‘/u02/app/oracle/admin/boston/adump‘‘ comment= ‘‘‘‘ scope=spfile
sql
statement: alter system set dispatchers = ‘‘(PROTOCOL=TCP) (SERVICE=core1XDB)‘‘
comment= ‘‘‘‘ scope=spfile
sql statement: alter system set log_archive_dest_2
= ‘‘service=core11 arch async VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
db_unique_name=boston‘‘ comment= ‘‘‘‘ scope=spfile
sql statement: alter
system set db_unique_name = ‘‘boston‘‘ comment= ‘‘‘‘ scope=spfile
sql
statement: alter system set db_file_name_convert = ‘‘/chicago/‘‘, ‘‘/boston/‘‘
comment= ‘‘‘‘ scope=spfile
sql statement: alter system set
log_file_name_convert = ‘‘/chicago/‘‘, ‘‘/boston/‘‘ comment= ‘‘‘‘
scope=spfile
sql statement: alter system set control_files =
‘‘/u01/app/oracle/oradata/control01.ctl‘‘ comment= ‘‘‘‘ scope=spfile
sql
statement: alter system set log_archive_max_processes = 5 comment= ‘‘‘‘
scope=spfile
sql statement: alter system set fal_client = ‘‘boston‘‘ comment=
‘‘‘‘ scope=spfile
sql statement: alter system set fal_server = ‘‘chicago‘‘
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=(chicago,boston)‘‘ comment=
‘‘‘‘ scope=spfile
sql statement: alter system set log_archive_dest_2 =
‘‘service=chicago ASYNC valid_for=(ONLINE_LOGFILE,PRIMARY_ROLE)
db_unique_name=chicago‘‘ comment= ‘‘‘‘ scope=spfile
Oracle instance shut
down
connected to auxiliary database (not started)
Oracle instance
started
Total System Global Area 845348864 bytes
Fixed Size 1303188
bytes
Variable Size 482348396 bytes
Database Buffers 356515840
bytes
Redo Buffers 5181440 bytes
contents of Memory Script:
{
backup
as copy current controlfile for standby auxiliary format
‘/u01/app/oracle/oradata/control01.ctl‘;
sql clone ‘alter database mount
standby database‘;
}
executing Memory Script
Starting backup at
19-MAY-08
channel prmy1: starting datafile copy
copying standby control
file
output file
name=/u02/app/oracle/product/11.1.0/db_1/dbs/snapcf_chicago.f
tag=TAG20080519T173406 RECID=2 STAMP=655148053
channel prmy1: datafile copy
complete, elapsed time: 00:00:03
Finished backup at 19-MAY-08
sql
statement: alter database mount standby database
contents of Memory
Script:
{
set newname for tempfile 1
to"/u02/app/oracle/oradata/boston/temp01.dbf";
switch clone tempfile
all;
set newname for datafile 1 to
"/u02/app/oracle/oradata/boston/system01.dbf";
set newname for datafile 2 to
"/u02/app/oracle/oradata/boston/sysaux01.dbf";
set newname for datafile 3 to
"/u02/app/oracle/oradata/boston/undotbs01.dbf";
set newname for datafile 4 to
"/u02/app/oracle/oradata/boston/users01.dbf";
backup as copy
reuse
datafile 1 auxiliary format
"/u02/app/oracle/oradata/boston/system01.dbf"
datafile 2 auxiliary format
"/u02/app/oracle/oradata/boston/sysaux01.dbf"
datafile 3 auxiliary format
"/u02/app/oracle/oradata/boston/undotbs01.dbf"
datafile 4 auxiliary format
"/u02/app/oracle/oradata/boston/users01.dbf" ;
sql ‘alter system archive log
current‘;
}
executing Memory Script
executing command: SET
NEWNAME
renamed tempfile 1 to /u02/app/oracle/oradata/boston/temp01.dbf in
control file
executing command: SET NEWNAME
executing command: SET
NEWNAME
executing command: SET NEWNAME
executing command: SET
NEWNAME
Starting backup at 19-MAY-08
channel prmy1: starting datafile
copy
input datafile file number=00001
name=/u02/app/oracle/oradata/chicago/system01.dbf
channel prmy2: starting
datafile copy
input datafile file number=00002
name=/u02/app/oracle/oradata/chicago/sysaux01.dbf
channel prmy3: starting
datafile copy
input datafile file number=00003
name=/u02/app/oracle/oradata/chicago/undotbs01.dbf
channel prmy4: starting
datafile copy
input datafile file number=00004
name=/u02/app/oracle/oradata/chicago/users01.dbf
output file
name=/u02/app/oracle/oradata/boston/undotbs01.dbf tag=TAG20080519T173421 RECID=0
STAMP=0
channel prmy3: datafile copy complete, elapsed time:
00:00:24
output file name=/u02/app/oracle/oradata/boston/users01.dbf
tag=TAG20080519T173421 RECID=0 STAMP=0
channel prmy4: datafile copy complete,
elapsed time: 00:00:16
output file
name=/u02/app/oracle/oradata/boston/system01.dbf tag=TAG20080519T173421 RECID=0
STAMP=0
channel prmy1: datafile copy complete, elapsed time:
00:02:32
output file name=/u02/app/oracle/oradata/boston/sysaux01.dbf
tag=TAG20080519T173421 RECID=0 STAMP=0
channel prmy2: datafile copy complete,
elapsed time: 00:02:32
Finished backup at 19-MAY-08
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=2 STAMP=655148231 file
name=/u02/app/oracle/oradata/boston/system01.dbf
datafile 2 switched to
datafile copy
input datafile copy RECID=3 STAMP=655148231 file
name=/u02/app/oracle/oradata/boston/sysaux01.dbf
datafile 3 switched to
datafile copy
input datafile copy RECID=4 STAMP=655148231 file
name=/u02/app/oracle/oradata/boston/undotbs01.dbf
datafile 4 switched to
datafile copy
input datafile copy RECID=5 STAMP=655148231 file
name=/u02/app/oracle/oradata/boston/users01.dbf
Finished Duplicate Db at
19-MAY-08
released channel: prmy1
released channel: prmy2
released
channel: prmy3
released channel: prmy4
4. Now connect to standby using
SQL*Plus and start the MRP (Managed Recovery Process). Compare the primary last
sequence and MRP (Managed Recovery Process) applying sequence.
Example
:
SQL> alter database recover managed standby database disconnect from
session;
5. If you are licensed to use Active Dataguard (ADG) than open the
Standby Database in READ ONLY and start the recovery.
SQL> alter database
recover managed standby database cancel;
SQL> alter database
open;
SQL> alter database recover managed standby database
disconnect;
使用RMAN DUPLICATE...FROM ACTIVE DATABASE创建物理standby
database,码迷,mamicode.com
使用RMAN DUPLICATE...FROM ACTIVE DATABASE创建物理standby
database