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Dataguard physical stand by setup

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This document provides step-by-step instructions for creating a physical standby database using Oracle Data Guard. It describes setting up the primary database to enable archiving and configure necessary initialization parameters. It then outlines the process for creating a standby control file, backing up the primary database files, preparing the standby database initialization file, and starting up the physical standby database. The goal is to manually set up a physical standby environment that can take over if the primary database fails.

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10g Data Guard, Physical Standby Creation, step by step Alejandro Vargas Principal Support Consultant Oracle Advanced Support Services Creating a Data Guard Physical Standby environment, General Review. ..................................................................................... 2 The Enviroment................................................................................................................................................................................................. 2 Implementation notes: .................................................................................................................................................................................. 2 Step by Step Implementation of a Physical Standby Environment.................................................................................................. 3 Primary Database Steps ................................................................................................................................................................................ 3 Primary Database General View................................................................................................................................................................. 3 Enable Forced Logging ................................................................................................................................................................................... 4 Create a Password File ................................................................................................................................................................................... 5 Configure a Standby Redo Log ................................................................................................................................................................... 6 Enable Archiving ............................................................................................................................................................................................... 7 Set Primary Database Initialization Parameters .................................................................................................................................. 8 Standby Database Steps .............................................................................................................................................................................11 Create a Control File for the Standby Database ................................................................................................................................11 Backup the Primary Database and transfer a copy to the Standby node. ..............................................................................12 Prepare an Initialization Parameter File for the Standby Database ...........................................................................................15 Configure the listener and tnsnames to support the database on both nodes......................................................................17 Set Up the Environment to Support the Standby Database on the standby node. .............................................................21 Start the Primary Database .......................................................................................................................................................................24 Verify the Physical Standby Database Is Performing Properly.....................................................................................................25 Reference:.........................................................................................................................................................................................................27
Creating a Data Guard Physical Standby environment, General Review. Manually setting up a Physical standby database is a simple task when all prerequisites and setup steps are carefully met and executed. In this example I did use 2 hosts, that host a RAC database. All RAC preinstall requisites are then in place and no additional configuration was necessary to implement Data Guard Physical Standby manually. Note that using Enterprise Manager Grid Control Data Guard Physical Standby can be implemented from the Grid Control Console easily. Still, this exercise provide a degree of familiarity with Data Guard. The Enviroment 2 Linux servers, Oracle Distribution 2.6.9-55 EL i686 i386 GNU/Linux Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 ssh is configured for user oracle on both nodes Oracle Home is on identical path on both nodes Implementation notes: Once you have your primary database up and running these are the steps to follow: 1. Enable Forced Logging 2. Create a Password File 3. Configure a Standby Redo Log 4. Enable Archiving 5. Set Primary Database Initialization Parameters Having followed these steps to implement the Physical Standby you need to follow these steps:
1. Create a Control File for the Standby Database 2. Backup the Primary Database and transfer a copy to the Standby node. 3. Prepare an Initialization Parameter File for the Standby Database 4. Configure the listener and tnsnames to support the database on both nodes 5. Set Up the Environment to Support the Standby Database on the standby node. 6. Start the Physical Standby Database 7. Verify the Physical Standby Database Is Performing Properly Step by Step Implementation of a Physical Standby Environment Primary Database Steps Primary Database General View SQL> select name from v$database; NAME --------- WHITEOWL SQL> select file_name from dba_data_files; FILE_NAME --------------------------------------------------------------------------------
/vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_users_310mzml9_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_sysaux_310mzm34_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_undotbs1_310mzmk2_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_system_310mzm27_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test2_3117h15v_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test3_3117h8nv_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test4_3117hk7d_.dbf 7 rows selected. SQL> select name from v$database; NAME --------- WHITEOWL SQL> show parameters unique NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_unique_name string whiteowl Enable Forced Logging In order to implement Standby Database we enable 'Forced Logging'.
This option ensures that even in the event that a 'nologging' operation is done, force logging takes precedence and all operations are logged into the redo logs. SQL> ALTER DATABASE FORCE LOGGING; Database altered. Create a Password File A password file must be created on the Primary and copied over to the Standby site. The sys password must be identical on both sites. This is a key pre requisite in order to be able to ship and apply archived logs from Primary to Standby. cd $ORACLE_HOME/dbs [vmractest1] > orapwd file=orapwwhiteowl password=oracle force=y
Configure a Standby Redo Log A Standby Redo log is added to enable Data Guard Maximum Availability and Maximum Protection modes. It is important to configure the Standby Redo Logs (SRL) with the same size as the online redo logs. In this example I'm using Oracle Managed Files, that's why I don't need to provide the SRL path and file name. If you are not using OMF's you then must pass the full qualified name. SQL> select * from v$logfile; GROUP# STATUS TYPE MEMBER IS_ ---------- ------- ------- ---------------------------------------------------------------------- --- 3 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_3_310n22jj_.log NO 2 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_2_310n21sx_.log NO 1 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log NO SQL> select bytes from v$log; BYTES ---------- 52428800 52428800 52428800 SQL> ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 SIZE 50M; Database altered. SQL> ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 SIZE 50M; Database altered. SQL> ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 SIZE 50M; Database altered.
SQL> select * from v$logfile 2 / GROUP# STATUS TYPE MEMBER IS_ ---------- ------- ------- ---------------------------------------------------------------------- --- 3 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_3_310n22jj_.log NO 2 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_2_310n21sx_.log NO 1 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log NO 4 STANDBY /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_4_3gznjc9v_.log NO 5 STANDBY /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_5_3gznnrh0_.log NO 6 STANDBY /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_6_3gznrwd7_.log NO 6 rows selected. Enable Archiving On 10g you can enable archive log mode by mounting the database and executing the archivelog command: SQL> startup mount; ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 75499088 bytes Database Buffers 205520896 bytes Redo Buffers 2973696 bytes Database mounted. SQL> alter database archivelog; Database altered.
SQL> alter database open; Database altered. SQL> archive log list Database log mode Archive Mode Automatic archival Enabled Archive destination /vmasmtest/whiteowl/archdest/arch Oldest online log sequence 92 Next log sequence to archive 94 Current log sequence 94 Set Primary Database Initialization Parameters Data Guard must use spfile, in order to configure it we create and configure the standby parameters on a regular pfile, and once it is ready we convert it to an spfile. Several init.ora parameters control the behavior of a Data Guard environment. In this example the Primary database init.ora is configured so that it can hold both roles, as Primary or Standby. SQL> create pfile='/oradisk/app01/oracle/product/10gDB/dbs/pfilewhiteowl.ora' from spfile; File created. Edit the pfile to add the standby parameters, here shown highlighted: db_name='whiteowl' db_unique_name='whiteowl' LOG_ARCHIVE_CONFIG='DG_CONFIG=(whiteowl,blackowl)' control_files='/vmasmtest/od01/WHITEOWL/WHITEOWL/controlfile/o1_mf_310n1xf0_.ctl'
LOG_ARCHIVE_DEST_1= 'LOCATION=/vmasmtest/whiteowl/archdest/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=whiteowl' LOG_ARCHIVE_DEST_2= 'SERVICE=blackowl LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=blackowl' LOG_ARCHIVE_DEST_STATE_1=ENABLE LOG_ARCHIVE_DEST_STATE_2=ENABLE REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE LOG_ARCHIVE_FORMAT=%t_%s_%r.arc LOG_ARCHIVE_MAX_PROCESSES=30 # Standby role parameters -------------------------------------------------------------------- *.fal_server=blackowl *.fal_client=whiteowl *.standby_file_management=auto *.db_file_name_convert='BLACKOWL/BLACKOWL','WHITEOWL/WHITEOWL' *.log_file_name_convert='/vmasmtest/od01/BLACKOWL/BLACKOWL/','/vmasmtest/od01/WHITEOWL/WHITEOWL/' # --------------------------------------------------------------------------------------------- audit_file_dest='/oradisk/app01/oracle/admin/whiteowl/adump' background_dump_dest='/oradisk/app01/oracle/admin/whiteowl/bdump' core_dump_dest='/oradisk/app01/oracle/admin/whiteowl/cdump' user_dump_dest='/oradisk/app01/oracle/admin/whiteowl/udump' compatible='10.2.0.1.0' db_block_size=8192 db_create_file_dest='/vmasmtest/od01/WHITEOWL' db_domain='' db_file_multiblock_read_count=16 job_queue_processes=10 open_cursors=300 pga_aggregate_target=94371840 processes=150
remote_login_passwordfile='EXCLUSIVE' sga_target=283115520 undo_management='AUTO' undo_tablespace='UNDOTBS1' Once the new parameter file is ready we create from it the spfile: SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup nomount pfile='/oradisk/app01/oracle/product/10gDB/dbs/pfilewhiteowl.ora'; ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 92276304 bytes Database Buffers 188743680 bytes Redo Buffers 2973696 bytes SQL> create spfile from pfile='/oradisk/app01/oracle/product/10gDB/dbs/pfilewhiteowl.ora'; File created. SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. SQL> startup; ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes
Variable Size 92276304 bytes Database Buffers 188743680 bytes Redo Buffers 2973696 bytes Database mounted. Database opened. Standby Database Steps Create a Control File for the Standby Database The standby database will use a control file that is generated on the primary database SQL> startup mount; ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 92276304 bytes Database Buffers 188743680 bytes Redo Buffers 2973696 bytes Database mounted. SQL> ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/oradisk/app01/oracle/product/10gDB/dbs/blackowl.ctl'; Database altered.
SQL> ALTER DATABASE OPEN; Database altered. Backup the Primary Database and transfer a copy to the Standby node. Generate a script to copy datafiles SQL> set pages 50000 lines 120 head off veri off flush off ti off SQL> spool cpfiles SQL> select 'scp -p '||file_name||' $v_dest' from dba_data_files; scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_users_310mzml9_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_sysaux_310mzm34_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_undotbs1_310mzmk2_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_system_310mzm27_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test2_3117h15v_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test3_3117h8nv_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test4_3117hk7d_.dbf $v_dest 7 rows selected. SQL> select 'scp -p '||file_name||' $v_dest' from dba_temp_files; scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_temp_310n2bnj_.tmp $v_dest SQL> select 'scp -p '||member||' $v_dest' from v$logfile; scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_3_310n22jj_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_2_310n21sx_.log $v_dest
scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_4_3gznjc9v_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_5_3gznnrh0_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_6_3gznrwd7_.log $v_dest 6 rows selected. SQL> spool off Shutdown the database, edit the script to add the v_dest location, and execute it. [vmractest1] > mv cpfiles.lst cpfiles #!/bin/ksh v_dest=vmractest2:/oradisk/od01/BLACKOWL/datafile/ scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_users_310mzml9_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_sysaux_310mzm34_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_undotbs1_310mzmk2_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_system_310mzm27_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test2_3117h15v_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test3_3117h8nv_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test4_3117hk7d_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_temp_310n2bnj_.tmp $v_dest v_dest= vmractest2:/oradisk/od01/BLACKOWL/onlinelog/ scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_3_310n22jj_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_2_310n21sx_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_4_3gznjc9v_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_5_3gznnrh0_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_6_3gznrwd7_.log $v_dest
On the standby node create the required directories to get the datafiles [root@vmractest2 root]# mkdir -p /oradisk/od01/BLACKOWL/datafile/ [root@vmractest2 root]# mkdir -p /oradisk/od01/BLACKOWL/onlinelog/ [root@vmractest2 root]# chown -R oracle:dba /oradisk/od01 On the primary node execute the script to copy the database while the main database is down (or in backup mode) [vmractest1] > chmod 700 cpfiles [vmractest1] > ./cpfiles o1_mf_users_310mzml9_.dbf 100% 2801MB 7.0MB/s 06:37 o1_mf_sysaux_310mzm34_.dbf 100% 340MB 7.4MB/s 00:45 o1_mf_undotbs1_310mzmk2_.dbf 100% 100MB 8.0MB/s 00:12 o1_mf_system_310mzm27_.dbf 100% 490MB 7.0MB/s 01:09 o1_mf_test2_3117h15v_.dbf 100% 100MB 6.5MB/s 00:15 o1_mf_test3_3117h8nv_.dbf 100% 100MB 6.0MB/s 00:16 o1_mf_test4_3117hk7d_.dbf 100% 100MB 6.4MB/s 00:15 o1_mf_temp_310n2bnj_.tmp 100% 433MB 5.8MB/s 01:14 o1_mf_3_310n22jj_.log 100% 50MB 7.5MB/s 00:06 o1_mf_2_310n21sx_.log 100% 50MB 8.4MB/s 00:05 o1_mf_1_310n215q_.log 100% 50MB 8.8MB/s 00:05 o1_mf_4_3gznjc9v_.log 100% 50MB 7.7MB/s 00:06 o1_mf_5_3gznnrh0_.log 100% 50MB 8.2MB/s 00:06 o1_mf_6_3gznrwd7_.log 100% 50MB 4.9MB/s 00:10
Prepare an Initialization Parameter File for the Standby Database Copy and edit the primary init.ora to set it up for the standby role *.db_name='whiteowl' *.db_unique_name='blackowl' *.audit_file_dest='/oradisk/app01/oracle/admin/blackowl/adump' *.background_dump_dest='/oradisk/app01/oracle/admin/blackowl/bdump' *.core_dump_dest='/oradisk/app01/oracle/admin/blackowl/cdump' *.user_dump_dest='/oradisk/app01/oracle/admin/blackowl/udump' *.compatible='10.2.0.1.0' *.control_files='/oradisk/od01/BLACKOWL/controlfile/blackowl_01.ctl','/oradisk/od01/BLACKOWL/controlfile/blackowl_02.ctl' *.db_block_size=8192 *.db_create_file_dest='/oradisk/od01/BLACKOWL' *.db_domain='' *.db_file_multiblock_read_count=16 *.db_file_name_convert='/oradisk/od01/BLACKOWL/datafile/','/vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/' *.log_file_name_convert='/oradisk/od01/BLACKOWL/onlinelog/','/vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/' *.fal_server='whiteowl' *.fal_client='blackowl' *.job_queue_processes=10 *.LOG_ARCHIVE_CONFIG='DG_CONFIG=(whiteowl,blackowl)' *.LOG_ARCHIVE_DEST_1='LOCATION=/oradisk/od01/BLACKOWL/archives/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=blackowl' *.LOG_ARCHIVE_DEST_2='SERVICE=whiteowl LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
DB_UNIQUE_NAME=whiteowl' *.LOG_ARCHIVE_DEST_STATE_1='ENABLE' *.LOG_ARCHIVE_DEST_STATE_2='ENABLE' *.LOG_ARCHIVE_FORMAT='%t_%s_%r.arc' *.LOG_ARCHIVE_MAX_PROCESSES=30 *.open_cursors=300 *.pga_aggregate_target=94371840 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.sga_target=283115520 *.standby_file_management='auto' *.undo_management='AUTO' *.undo_tablespace='UNDOTBS1' Create all required directories for dump directories and archived log destination [vmractest2] > mkdir -p /oradisk/app01/oracle/admin/blackowl/adump {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > mkdir -p /oradisk/app01/oracle/admin/blackowl/bdump {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > mkdir -p /oradisk/app01/oracle/admin/blackowl/cdump {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > mkdir -p /oradisk/app01/oracle/admin/blackowl/udump {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > mkdir -p /oradisk/od01/BLACKOWL/archives/ Copy from the primary the standby controlfile to its destination [vmractest1] > scp -p blackowl.ctl vmractest2:/oradisk/od01/BLACKOWL/controlfile/blackowl_02.ctl blackowl.ctl 100% 6992KB 7.2MB/s 00:00 [vmractest1] > scp -p blackowl.ctl vmractest2:/oradisk/od01/BLACKOWL/controlfile/blackowl_01.ctl blackowl.ctl 100% 6992KB 6.9MB/s 00:00
Configure the listener and tnsnames to support the database on both nodes Configure listener.ora on both servers to hold entries for both databases # ON VMRACTEST1 LISTENER_VMRACTEST = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)(IP = FIRST)) ) ) SID_LIST_LISTENER_VMRACTEST = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = whiteowl) (ORACLE_HOME = /oradisk/app01/oracle/product/10gDB ) (SID_NAME = whiteowl) ) ) # ON VMRACTEST2 LISTENER_VMRACTEST = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)(IP = FIRST)) ) ) SID_LIST_LISTENER_VMRACTEST =
(SID_LIST = (SID_DESC = (GLOBAL_DBNAME = blackowl) (ORACLE_HOME = /oradisk/app01/oracle/product/10gDB ) (SID_NAME = blackowl) ) ) Configure tnsnames.ora on both servers to hold entries for both databases # ON VMRACTEST1 LISTENER_VMRACTEST = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)(IP = FIRST)) ) ) WHITHEOWL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = whiteowl) ) ) BLACKOWL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)) (CONNECT_DATA =
(SERVER = DEDICATED) (SERVICE_NAME = blackowl) ) ) # ON VMRACTEST2 LISTENER_VMRACTEST = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)(IP = FIRST)) ) ) BLACKOWL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = blackowl) ) ) WHITHEOWL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = whiteowl) ) )
Start the listener and check tnsping on both nodes to both services [vmractest1.partnergsm.co.il] > tnsping whiteowl TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 19-SEP-2007 15:10:00 Copyright (c) 1997, 2005, Oracle. All rights reserved. Used parameter files: /oradisk/app01/oracle/product/10gDB/network/admin/sqlnet.ora Used TNSNAMES adapter to resolve the alias Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = whiteowl))) OK (10 msec) {oracle} /oradisk/app01/oracle/product/10gDB/network/admin [vmractest1.partnergsm.co.il] > tnsping blackowl TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 19-SEP-2007 15:10:09 Copyright (c) 1997, 2005, Oracle. All rights reserved. Used parameter files: /oradisk/app01/oracle/product/10gDB/network/admin/sqlnet.ora Used TNSNAMES adapter to resolve the alias Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = blackowl))) OK (10 msec)
Set Up the Environment to Support the Standby Database on the standby node. Copy the password file from Primary to Standby, sys password must be identical [vmractest1]> scp orapwwhiteowl vmractest2:/oradisk/app01/oracle/product/10gDB/dbs/orapwblackowl orapwwhiteowl 100% 1536 4.0MB/s 00:00 Setup the environment variables to point to the Satndby database ORACLE_HOME=/oradisk/app01/oracle/product/10gDB ORACLE_SID=blackowl Startup nomount the Standby database and generate an spfile {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > sqlplus / as sysdba SQL*Plus: Release 10.2.0.1.0 - Production on Wed Sep 19 16:17:18 2007 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to an idle instance. SQL> startup nomount pfile='/oradisk/app01/oracle/product/10gDB/dbs/initblackowl.ora' ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 92276304 bytes Database Buffers 188743680 bytes
Redo Buffers 2973696 bytes SQL> create spfile from pfile='/oradisk/app01/oracle/product/10gDB/dbs/initblackowl.ora'; File created. SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. Startup mount the Standby database and perform recovery SQL> startup mount ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 92276304 bytes Database Buffers 188743680 bytes Redo Buffers 2973696 bytes Database mounted. SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION; Database altered. The alert log of the standby will show the operations taking place … … ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION
Wed Sep 19 16:46:26 2007 Attempt to start background Managed Standby Recovery process (blackowl) MRP0 started with pid=47, OS id=12498 Wed Sep 19 16:46:26 2007 MRP0: Background Managed Standby Recovery process started (blackowl) Managed Standby Recovery not using Real Time Apply Clearing online redo logfile 1 /oradisk/od01/BLACKOWL/onlinelog/o1_mf_1_310n215q_.log Clearing online log 1 of thread 1 sequence number 95 Deleted Oracle managed file /oradisk/od01/BLACKOWL/onlinelog/o1_mf_1_310n215q_.log Wed Sep 19 16:46:32 2007 Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION Wed Sep 19 16:46:33 2007 Clearing online redo logfile 1 complete Clearing online redo logfile 2 /oradisk/od01/BLACKOWL/onlinelog/o1_mf_2_310n21sx_.log Clearing online log 2 of thread 1 sequence number 96 Deleted Oracle managed file /oradisk/od01/BLACKOWL/onlinelog/o1_mf_2_310n21sx_.log Clearing online redo logfile 2 complete Clearing online redo logfile 3 /oradisk/od01/BLACKOWL/onlinelog/o1_mf_3_310n22jj_.log Clearing online log 3 of thread 1 sequence number 94 Deleted Oracle managed file /oradisk/od01/BLACKOWL/onlinelog/o1_mf_3_310n22jj_.log Clearing online redo logfile 3 complete Media Recovery Waiting for thread 1 sequence 96
Start the Primary Database The alert log of the primary will show how it recognize the standby and start shipping archived logs ****************************************************************** LGWR: Setting 'active' archival for destination LOG_ARCHIVE_DEST_2 ****************************************************************** Wed Sep 19 16:01:07 2007 LNS: Standby redo logfile selected for thread 1 sequence 100 for destination LOG_ARCHIVE_DEST_2 Wed Sep 19 16:01:07 2007 Successfully onlined Undo Tablespace 1. Wed Sep 19 16:01:07 2007 SMON: enabling tx recovery Wed Sep 19 16:01:09 2007 Database Characterset is AL32UTF8 replication_dependency_tracking turned off (no async multimaster replication found) Starting background process QMNC QMNC started with pid=21, OS id=13864 Wed Sep 19 16:01:12 2007 Completed: ALTER DATABASE OPEN Wed Sep 19 16:01:13 2007 ARCq: Standby redo logfile selected for thread 1 sequence 99 for destination LOG_ARCHIVE_DEST_2 Wed Sep 19 16:05:05 2007 Thread 1 advanced to log sequence 101 Current log# 1 seq# 101 mem# 0: /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log Wed Sep 19 16:05:06 2007 LNS: Standby redo logfile selected for thread 1 sequence 101 for destination LOG_ARCHIVE_DEST_2
Verify the Physical Standby Database Is Performing Properly Check archived redo log on Standby SQL> show parameters db_unique_name; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_unique_name string blackowl SQL> l 1* SELECT NAME FROM V$DATABASE SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#; SEQUENCE# FIRST_TIM NEXT_TIME ---------- --------- --------- 96 19-SEP-07 19-SEP-07 97 19-SEP-07 19-SEP-07 98 19-SEP-07 19-SEP-07 99 19-SEP-07 19-SEP-07 100 19-SEP-07 19-SEP-07 Switch logfiles on Primary SQL> alter system switch logfile; System altered. SQL> archive log list Database log mode Archive Mode Automatic archival Enabled Archive destination /vmasmtest/whiteowl/archdest/ Oldest online log sequence 100
Next log sequence to archive 102 Current log sequence 102 SQL> alter system switch logfile; System altered. SQL> archive log list Database log mode Archive Mode Automatic archival Enabled Archive destination /vmasmtest/whiteowl/archdest/ Oldest online log sequence 101 Next log sequence to archive 103 Current log sequence 103 Check archived redo log on Standby SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#; SEQUENCE# FIRST_TIME NEXT_TIME ---------- -------------- -------------- 96 19/09/07 09:35 19/09/07 09:45 97 19/09/07 09:45 19/09/07 15:20 98 19/09/07 15:20 19/09/07 15:48 99 19/09/07 15:48 19/09/07 16:00 100 19/09/07 16:00 19/09/07 16:05 101 19/09/07 16:05 19/09/07 16:08 102 19/09/07 16:08 19/09/07 16:08 7 rows selected.
Reference: Oracle® Data Guard Concepts and Administration 10g Release 2 (10.2) Part Number B14239-04 http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/create_ps.htm#SBYDB00210

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Dataguard physical stand by setup

  • 1. 10g Data Guard, Physical Standby Creation, step by step Alejandro Vargas Principal Support Consultant Oracle Advanced Support Services Creating a Data Guard Physical Standby environment, General Review. ..................................................................................... 2 The Enviroment................................................................................................................................................................................................. 2 Implementation notes: .................................................................................................................................................................................. 2 Step by Step Implementation of a Physical Standby Environment.................................................................................................. 3 Primary Database Steps ................................................................................................................................................................................ 3 Primary Database General View................................................................................................................................................................. 3 Enable Forced Logging ................................................................................................................................................................................... 4 Create a Password File ................................................................................................................................................................................... 5 Configure a Standby Redo Log ................................................................................................................................................................... 6 Enable Archiving ............................................................................................................................................................................................... 7 Set Primary Database Initialization Parameters .................................................................................................................................. 8 Standby Database Steps .............................................................................................................................................................................11 Create a Control File for the Standby Database ................................................................................................................................11 Backup the Primary Database and transfer a copy to the Standby node. ..............................................................................12 Prepare an Initialization Parameter File for the Standby Database ...........................................................................................15 Configure the listener and tnsnames to support the database on both nodes......................................................................17 Set Up the Environment to Support the Standby Database on the standby node. .............................................................21 Start the Primary Database .......................................................................................................................................................................24 Verify the Physical Standby Database Is Performing Properly.....................................................................................................25 Reference:.........................................................................................................................................................................................................27
  • 2. Creating a Data Guard Physical Standby environment, General Review. Manually setting up a Physical standby database is a simple task when all prerequisites and setup steps are carefully met and executed. In this example I did use 2 hosts, that host a RAC database. All RAC preinstall requisites are then in place and no additional configuration was necessary to implement Data Guard Physical Standby manually. Note that using Enterprise Manager Grid Control Data Guard Physical Standby can be implemented from the Grid Control Console easily. Still, this exercise provide a degree of familiarity with Data Guard. The Enviroment 2 Linux servers, Oracle Distribution 2.6.9-55 EL i686 i386 GNU/Linux Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 ssh is configured for user oracle on both nodes Oracle Home is on identical path on both nodes Implementation notes: Once you have your primary database up and running these are the steps to follow: 1. Enable Forced Logging 2. Create a Password File 3. Configure a Standby Redo Log 4. Enable Archiving 5. Set Primary Database Initialization Parameters Having followed these steps to implement the Physical Standby you need to follow these steps:
  • 3. 1. Create a Control File for the Standby Database 2. Backup the Primary Database and transfer a copy to the Standby node. 3. Prepare an Initialization Parameter File for the Standby Database 4. Configure the listener and tnsnames to support the database on both nodes 5. Set Up the Environment to Support the Standby Database on the standby node. 6. Start the Physical Standby Database 7. Verify the Physical Standby Database Is Performing Properly Step by Step Implementation of a Physical Standby Environment Primary Database Steps Primary Database General View SQL> select name from v$database; NAME --------- WHITEOWL SQL> select file_name from dba_data_files; FILE_NAME --------------------------------------------------------------------------------
  • 4. /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_users_310mzml9_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_sysaux_310mzm34_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_undotbs1_310mzmk2_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_system_310mzm27_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test2_3117h15v_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test3_3117h8nv_.dbf /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test4_3117hk7d_.dbf 7 rows selected. SQL> select name from v$database; NAME --------- WHITEOWL SQL> show parameters unique NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_unique_name string whiteowl Enable Forced Logging In order to implement Standby Database we enable 'Forced Logging'.
  • 5. This option ensures that even in the event that a 'nologging' operation is done, force logging takes precedence and all operations are logged into the redo logs. SQL> ALTER DATABASE FORCE LOGGING; Database altered. Create a Password File A password file must be created on the Primary and copied over to the Standby site. The sys password must be identical on both sites. This is a key pre requisite in order to be able to ship and apply archived logs from Primary to Standby. cd $ORACLE_HOME/dbs [vmractest1] > orapwd file=orapwwhiteowl password=oracle force=y
  • 6. Configure a Standby Redo Log A Standby Redo log is added to enable Data Guard Maximum Availability and Maximum Protection modes. It is important to configure the Standby Redo Logs (SRL) with the same size as the online redo logs. In this example I'm using Oracle Managed Files, that's why I don't need to provide the SRL path and file name. If you are not using OMF's you then must pass the full qualified name. SQL> select * from v$logfile; GROUP# STATUS TYPE MEMBER IS_ ---------- ------- ------- ---------------------------------------------------------------------- --- 3 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_3_310n22jj_.log NO 2 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_2_310n21sx_.log NO 1 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log NO SQL> select bytes from v$log; BYTES ---------- 52428800 52428800 52428800 SQL> ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 SIZE 50M; Database altered. SQL> ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 SIZE 50M; Database altered. SQL> ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 SIZE 50M; Database altered.
  • 7. SQL> select * from v$logfile 2 / GROUP# STATUS TYPE MEMBER IS_ ---------- ------- ------- ---------------------------------------------------------------------- --- 3 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_3_310n22jj_.log NO 2 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_2_310n21sx_.log NO 1 ONLINE /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log NO 4 STANDBY /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_4_3gznjc9v_.log NO 5 STANDBY /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_5_3gznnrh0_.log NO 6 STANDBY /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_6_3gznrwd7_.log NO 6 rows selected. Enable Archiving On 10g you can enable archive log mode by mounting the database and executing the archivelog command: SQL> startup mount; ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 75499088 bytes Database Buffers 205520896 bytes Redo Buffers 2973696 bytes Database mounted. SQL> alter database archivelog; Database altered.
  • 8. SQL> alter database open; Database altered. SQL> archive log list Database log mode Archive Mode Automatic archival Enabled Archive destination /vmasmtest/whiteowl/archdest/arch Oldest online log sequence 92 Next log sequence to archive 94 Current log sequence 94 Set Primary Database Initialization Parameters Data Guard must use spfile, in order to configure it we create and configure the standby parameters on a regular pfile, and once it is ready we convert it to an spfile. Several init.ora parameters control the behavior of a Data Guard environment. In this example the Primary database init.ora is configured so that it can hold both roles, as Primary or Standby. SQL> create pfile='/oradisk/app01/oracle/product/10gDB/dbs/pfilewhiteowl.ora' from spfile; File created. Edit the pfile to add the standby parameters, here shown highlighted: db_name='whiteowl' db_unique_name='whiteowl' LOG_ARCHIVE_CONFIG='DG_CONFIG=(whiteowl,blackowl)' control_files='/vmasmtest/od01/WHITEOWL/WHITEOWL/controlfile/o1_mf_310n1xf0_.ctl'
  • 9. LOG_ARCHIVE_DEST_1= 'LOCATION=/vmasmtest/whiteowl/archdest/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=whiteowl' LOG_ARCHIVE_DEST_2= 'SERVICE=blackowl LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=blackowl' LOG_ARCHIVE_DEST_STATE_1=ENABLE LOG_ARCHIVE_DEST_STATE_2=ENABLE REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE LOG_ARCHIVE_FORMAT=%t_%s_%r.arc LOG_ARCHIVE_MAX_PROCESSES=30 # Standby role parameters -------------------------------------------------------------------- *.fal_server=blackowl *.fal_client=whiteowl *.standby_file_management=auto *.db_file_name_convert='BLACKOWL/BLACKOWL','WHITEOWL/WHITEOWL' *.log_file_name_convert='/vmasmtest/od01/BLACKOWL/BLACKOWL/','/vmasmtest/od01/WHITEOWL/WHITEOWL/' # --------------------------------------------------------------------------------------------- audit_file_dest='/oradisk/app01/oracle/admin/whiteowl/adump' background_dump_dest='/oradisk/app01/oracle/admin/whiteowl/bdump' core_dump_dest='/oradisk/app01/oracle/admin/whiteowl/cdump' user_dump_dest='/oradisk/app01/oracle/admin/whiteowl/udump' compatible='10.2.0.1.0' db_block_size=8192 db_create_file_dest='/vmasmtest/od01/WHITEOWL' db_domain='' db_file_multiblock_read_count=16 job_queue_processes=10 open_cursors=300 pga_aggregate_target=94371840 processes=150
  • 10. remote_login_passwordfile='EXCLUSIVE' sga_target=283115520 undo_management='AUTO' undo_tablespace='UNDOTBS1' Once the new parameter file is ready we create from it the spfile: SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup nomount pfile='/oradisk/app01/oracle/product/10gDB/dbs/pfilewhiteowl.ora'; ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 92276304 bytes Database Buffers 188743680 bytes Redo Buffers 2973696 bytes SQL> create spfile from pfile='/oradisk/app01/oracle/product/10gDB/dbs/pfilewhiteowl.ora'; File created. SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. SQL> startup; ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes
  • 11. Variable Size 92276304 bytes Database Buffers 188743680 bytes Redo Buffers 2973696 bytes Database mounted. Database opened. Standby Database Steps Create a Control File for the Standby Database The standby database will use a control file that is generated on the primary database SQL> startup mount; ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 92276304 bytes Database Buffers 188743680 bytes Redo Buffers 2973696 bytes Database mounted. SQL> ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/oradisk/app01/oracle/product/10gDB/dbs/blackowl.ctl'; Database altered.
  • 12. SQL> ALTER DATABASE OPEN; Database altered. Backup the Primary Database and transfer a copy to the Standby node. Generate a script to copy datafiles SQL> set pages 50000 lines 120 head off veri off flush off ti off SQL> spool cpfiles SQL> select 'scp -p '||file_name||' $v_dest' from dba_data_files; scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_users_310mzml9_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_sysaux_310mzm34_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_undotbs1_310mzmk2_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_system_310mzm27_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test2_3117h15v_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test3_3117h8nv_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test4_3117hk7d_.dbf $v_dest 7 rows selected. SQL> select 'scp -p '||file_name||' $v_dest' from dba_temp_files; scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_temp_310n2bnj_.tmp $v_dest SQL> select 'scp -p '||member||' $v_dest' from v$logfile; scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_3_310n22jj_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_2_310n21sx_.log $v_dest
  • 13. scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_4_3gznjc9v_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_5_3gznnrh0_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_6_3gznrwd7_.log $v_dest 6 rows selected. SQL> spool off Shutdown the database, edit the script to add the v_dest location, and execute it. [vmractest1] > mv cpfiles.lst cpfiles #!/bin/ksh v_dest=vmractest2:/oradisk/od01/BLACKOWL/datafile/ scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_users_310mzml9_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_sysaux_310mzm34_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_undotbs1_310mzmk2_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_system_310mzm27_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test2_3117h15v_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test3_3117h8nv_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_test4_3117hk7d_.dbf $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/o1_mf_temp_310n2bnj_.tmp $v_dest v_dest= vmractest2:/oradisk/od01/BLACKOWL/onlinelog/ scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_3_310n22jj_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_2_310n21sx_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_4_3gznjc9v_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_5_3gznnrh0_.log $v_dest scp -p /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_6_3gznrwd7_.log $v_dest
  • 14. On the standby node create the required directories to get the datafiles [root@vmractest2 root]# mkdir -p /oradisk/od01/BLACKOWL/datafile/ [root@vmractest2 root]# mkdir -p /oradisk/od01/BLACKOWL/onlinelog/ [root@vmractest2 root]# chown -R oracle:dba /oradisk/od01 On the primary node execute the script to copy the database while the main database is down (or in backup mode) [vmractest1] > chmod 700 cpfiles [vmractest1] > ./cpfiles o1_mf_users_310mzml9_.dbf 100% 2801MB 7.0MB/s 06:37 o1_mf_sysaux_310mzm34_.dbf 100% 340MB 7.4MB/s 00:45 o1_mf_undotbs1_310mzmk2_.dbf 100% 100MB 8.0MB/s 00:12 o1_mf_system_310mzm27_.dbf 100% 490MB 7.0MB/s 01:09 o1_mf_test2_3117h15v_.dbf 100% 100MB 6.5MB/s 00:15 o1_mf_test3_3117h8nv_.dbf 100% 100MB 6.0MB/s 00:16 o1_mf_test4_3117hk7d_.dbf 100% 100MB 6.4MB/s 00:15 o1_mf_temp_310n2bnj_.tmp 100% 433MB 5.8MB/s 01:14 o1_mf_3_310n22jj_.log 100% 50MB 7.5MB/s 00:06 o1_mf_2_310n21sx_.log 100% 50MB 8.4MB/s 00:05 o1_mf_1_310n215q_.log 100% 50MB 8.8MB/s 00:05 o1_mf_4_3gznjc9v_.log 100% 50MB 7.7MB/s 00:06 o1_mf_5_3gznnrh0_.log 100% 50MB 8.2MB/s 00:06 o1_mf_6_3gznrwd7_.log 100% 50MB 4.9MB/s 00:10
  • 15. Prepare an Initialization Parameter File for the Standby Database Copy and edit the primary init.ora to set it up for the standby role *.db_name='whiteowl' *.db_unique_name='blackowl' *.audit_file_dest='/oradisk/app01/oracle/admin/blackowl/adump' *.background_dump_dest='/oradisk/app01/oracle/admin/blackowl/bdump' *.core_dump_dest='/oradisk/app01/oracle/admin/blackowl/cdump' *.user_dump_dest='/oradisk/app01/oracle/admin/blackowl/udump' *.compatible='10.2.0.1.0' *.control_files='/oradisk/od01/BLACKOWL/controlfile/blackowl_01.ctl','/oradisk/od01/BLACKOWL/controlfile/blackowl_02.ctl' *.db_block_size=8192 *.db_create_file_dest='/oradisk/od01/BLACKOWL' *.db_domain='' *.db_file_multiblock_read_count=16 *.db_file_name_convert='/oradisk/od01/BLACKOWL/datafile/','/vmasmtest/od01/WHITEOWL/WHITEOWL/datafile/' *.log_file_name_convert='/oradisk/od01/BLACKOWL/onlinelog/','/vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/' *.fal_server='whiteowl' *.fal_client='blackowl' *.job_queue_processes=10 *.LOG_ARCHIVE_CONFIG='DG_CONFIG=(whiteowl,blackowl)' *.LOG_ARCHIVE_DEST_1='LOCATION=/oradisk/od01/BLACKOWL/archives/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=blackowl' *.LOG_ARCHIVE_DEST_2='SERVICE=whiteowl LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
  • 16. DB_UNIQUE_NAME=whiteowl' *.LOG_ARCHIVE_DEST_STATE_1='ENABLE' *.LOG_ARCHIVE_DEST_STATE_2='ENABLE' *.LOG_ARCHIVE_FORMAT='%t_%s_%r.arc' *.LOG_ARCHIVE_MAX_PROCESSES=30 *.open_cursors=300 *.pga_aggregate_target=94371840 *.processes=150 *.remote_login_passwordfile='EXCLUSIVE' *.sga_target=283115520 *.standby_file_management='auto' *.undo_management='AUTO' *.undo_tablespace='UNDOTBS1' Create all required directories for dump directories and archived log destination [vmractest2] > mkdir -p /oradisk/app01/oracle/admin/blackowl/adump {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > mkdir -p /oradisk/app01/oracle/admin/blackowl/bdump {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > mkdir -p /oradisk/app01/oracle/admin/blackowl/cdump {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > mkdir -p /oradisk/app01/oracle/admin/blackowl/udump {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > mkdir -p /oradisk/od01/BLACKOWL/archives/ Copy from the primary the standby controlfile to its destination [vmractest1] > scp -p blackowl.ctl vmractest2:/oradisk/od01/BLACKOWL/controlfile/blackowl_02.ctl blackowl.ctl 100% 6992KB 7.2MB/s 00:00 [vmractest1] > scp -p blackowl.ctl vmractest2:/oradisk/od01/BLACKOWL/controlfile/blackowl_01.ctl blackowl.ctl 100% 6992KB 6.9MB/s 00:00
  • 17. Configure the listener and tnsnames to support the database on both nodes Configure listener.ora on both servers to hold entries for both databases # ON VMRACTEST1 LISTENER_VMRACTEST = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)(IP = FIRST)) ) ) SID_LIST_LISTENER_VMRACTEST = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = whiteowl) (ORACLE_HOME = /oradisk/app01/oracle/product/10gDB ) (SID_NAME = whiteowl) ) ) # ON VMRACTEST2 LISTENER_VMRACTEST = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)(IP = FIRST)) ) ) SID_LIST_LISTENER_VMRACTEST =
  • 18. (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = blackowl) (ORACLE_HOME = /oradisk/app01/oracle/product/10gDB ) (SID_NAME = blackowl) ) ) Configure tnsnames.ora on both servers to hold entries for both databases # ON VMRACTEST1 LISTENER_VMRACTEST = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)(IP = FIRST)) ) ) WHITHEOWL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = whiteowl) ) ) BLACKOWL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)) (CONNECT_DATA =
  • 19. (SERVER = DEDICATED) (SERVICE_NAME = blackowl) ) ) # ON VMRACTEST2 LISTENER_VMRACTEST = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)(IP = FIRST)) ) ) BLACKOWL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = blackowl) ) ) WHITHEOWL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = whiteowl) ) )
  • 20. Start the listener and check tnsping on both nodes to both services [vmractest1.partnergsm.co.il] > tnsping whiteowl TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 19-SEP-2007 15:10:00 Copyright (c) 1997, 2005, Oracle. All rights reserved. Used parameter files: /oradisk/app01/oracle/product/10gDB/network/admin/sqlnet.ora Used TNSNAMES adapter to resolve the alias Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest1)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = whiteowl))) OK (10 msec) {oracle} /oradisk/app01/oracle/product/10gDB/network/admin [vmractest1.partnergsm.co.il] > tnsping blackowl TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 19-SEP-2007 15:10:09 Copyright (c) 1997, 2005, Oracle. All rights reserved. Used parameter files: /oradisk/app01/oracle/product/10gDB/network/admin/sqlnet.ora Used TNSNAMES adapter to resolve the alias Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = vmractest2)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = blackowl))) OK (10 msec)
  • 21. Set Up the Environment to Support the Standby Database on the standby node. Copy the password file from Primary to Standby, sys password must be identical [vmractest1]> scp orapwwhiteowl vmractest2:/oradisk/app01/oracle/product/10gDB/dbs/orapwblackowl orapwwhiteowl 100% 1536 4.0MB/s 00:00 Setup the environment variables to point to the Satndby database ORACLE_HOME=/oradisk/app01/oracle/product/10gDB ORACLE_SID=blackowl Startup nomount the Standby database and generate an spfile {oracle} /oradisk/app01/oracle/product/10gDB/dbs [vmractest2] > sqlplus / as sysdba SQL*Plus: Release 10.2.0.1.0 - Production on Wed Sep 19 16:17:18 2007 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to an idle instance. SQL> startup nomount pfile='/oradisk/app01/oracle/product/10gDB/dbs/initblackowl.ora' ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 92276304 bytes Database Buffers 188743680 bytes
  • 22. Redo Buffers 2973696 bytes SQL> create spfile from pfile='/oradisk/app01/oracle/product/10gDB/dbs/initblackowl.ora'; File created. SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. Startup mount the Standby database and perform recovery SQL> startup mount ORACLE instance started. Total System Global Area 285212672 bytes Fixed Size 1218992 bytes Variable Size 92276304 bytes Database Buffers 188743680 bytes Redo Buffers 2973696 bytes Database mounted. SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION; Database altered. The alert log of the standby will show the operations taking place … … ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION
  • 23. Wed Sep 19 16:46:26 2007 Attempt to start background Managed Standby Recovery process (blackowl) MRP0 started with pid=47, OS id=12498 Wed Sep 19 16:46:26 2007 MRP0: Background Managed Standby Recovery process started (blackowl) Managed Standby Recovery not using Real Time Apply Clearing online redo logfile 1 /oradisk/od01/BLACKOWL/onlinelog/o1_mf_1_310n215q_.log Clearing online log 1 of thread 1 sequence number 95 Deleted Oracle managed file /oradisk/od01/BLACKOWL/onlinelog/o1_mf_1_310n215q_.log Wed Sep 19 16:46:32 2007 Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION Wed Sep 19 16:46:33 2007 Clearing online redo logfile 1 complete Clearing online redo logfile 2 /oradisk/od01/BLACKOWL/onlinelog/o1_mf_2_310n21sx_.log Clearing online log 2 of thread 1 sequence number 96 Deleted Oracle managed file /oradisk/od01/BLACKOWL/onlinelog/o1_mf_2_310n21sx_.log Clearing online redo logfile 2 complete Clearing online redo logfile 3 /oradisk/od01/BLACKOWL/onlinelog/o1_mf_3_310n22jj_.log Clearing online log 3 of thread 1 sequence number 94 Deleted Oracle managed file /oradisk/od01/BLACKOWL/onlinelog/o1_mf_3_310n22jj_.log Clearing online redo logfile 3 complete Media Recovery Waiting for thread 1 sequence 96
  • 24. Start the Primary Database The alert log of the primary will show how it recognize the standby and start shipping archived logs ****************************************************************** LGWR: Setting 'active' archival for destination LOG_ARCHIVE_DEST_2 ****************************************************************** Wed Sep 19 16:01:07 2007 LNS: Standby redo logfile selected for thread 1 sequence 100 for destination LOG_ARCHIVE_DEST_2 Wed Sep 19 16:01:07 2007 Successfully onlined Undo Tablespace 1. Wed Sep 19 16:01:07 2007 SMON: enabling tx recovery Wed Sep 19 16:01:09 2007 Database Characterset is AL32UTF8 replication_dependency_tracking turned off (no async multimaster replication found) Starting background process QMNC QMNC started with pid=21, OS id=13864 Wed Sep 19 16:01:12 2007 Completed: ALTER DATABASE OPEN Wed Sep 19 16:01:13 2007 ARCq: Standby redo logfile selected for thread 1 sequence 99 for destination LOG_ARCHIVE_DEST_2 Wed Sep 19 16:05:05 2007 Thread 1 advanced to log sequence 101 Current log# 1 seq# 101 mem# 0: /vmasmtest/od01/WHITEOWL/WHITEOWL/onlinelog/o1_mf_1_310n215q_.log Wed Sep 19 16:05:06 2007 LNS: Standby redo logfile selected for thread 1 sequence 101 for destination LOG_ARCHIVE_DEST_2
  • 25. Verify the Physical Standby Database Is Performing Properly Check archived redo log on Standby SQL> show parameters db_unique_name; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_unique_name string blackowl SQL> l 1* SELECT NAME FROM V$DATABASE SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#; SEQUENCE# FIRST_TIM NEXT_TIME ---------- --------- --------- 96 19-SEP-07 19-SEP-07 97 19-SEP-07 19-SEP-07 98 19-SEP-07 19-SEP-07 99 19-SEP-07 19-SEP-07 100 19-SEP-07 19-SEP-07 Switch logfiles on Primary SQL> alter system switch logfile; System altered. SQL> archive log list Database log mode Archive Mode Automatic archival Enabled Archive destination /vmasmtest/whiteowl/archdest/ Oldest online log sequence 100
  • 26. Next log sequence to archive 102 Current log sequence 102 SQL> alter system switch logfile; System altered. SQL> archive log list Database log mode Archive Mode Automatic archival Enabled Archive destination /vmasmtest/whiteowl/archdest/ Oldest online log sequence 101 Next log sequence to archive 103 Current log sequence 103 Check archived redo log on Standby SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#; SEQUENCE# FIRST_TIME NEXT_TIME ---------- -------------- -------------- 96 19/09/07 09:35 19/09/07 09:45 97 19/09/07 09:45 19/09/07 15:20 98 19/09/07 15:20 19/09/07 15:48 99 19/09/07 15:48 19/09/07 16:00 100 19/09/07 16:00 19/09/07 16:05 101 19/09/07 16:05 19/09/07 16:08 102 19/09/07 16:08 19/09/07 16:08 7 rows selected.
  • 27. Reference: Oracle® Data Guard Concepts and Administration 10g Release 2 (10.2) Part Number B14239-04 http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/create_ps.htm#SBYDB00210