{"id":29660,"date":"2022-02-15T18:30:05","date_gmt":"2022-02-15T18:30:05","guid":{"rendered":"https:\/\/dbtut.com\/?p=29660"},"modified":"2022-02-15T19:17:10","modified_gmt":"2022-02-15T19:17:10","slug":"oracle-data-guard-installation","status":"publish","type":"post","link":"https:\/\/dbtut.com\/index.php\/2022\/02\/15\/oracle-data-guard-installation\/","title":{"rendered":"Oracle Data Guard Installation"},"content":{"rendered":"

In today’s article, I will talk about Oracle Data Guard Installation.<\/p>\n

I used Oracle Linux 7.6 and Oracle Database 19C while installing.<\/p>\n

There are conditions that must be met in order to install Oracle Data Guard. These are as follows:<\/p>\n

Oracle database must be Enterprise edition.
\nBoth servers must have the same operating system.
\nOracle Software must be the same version on both servers.<\/p>\n

After these conditions are met, the necessary steps for installation can be started.<\/p>\n

First, we install Oracle Software on the Standby server. Then we create and start the listener service using \u201cnetca\u201d.<\/p>\n

We write the information of the servers in the “\/etc\/hosts” file in the Primary and Standby databases.<\/p>\n

vi \/etc\/hosts<\/pre>\n
\"\"<\/p>\n
Settings to be made on the Primary Server:<\/h3>\n
1. The archive log mode of the database must be turned on. We check if it is open with the following command.<\/p>\n
select log_mode from v$database;<\/pre>\n
If the database is not in archive mode, we follow the steps below to put the database in archive mode.<\/p>\n
We close the database consistently and open it in mount mode.<\/p>\n
shutdown immediate;\r\nstartup mount;<\/pre>\n
We put the database in archive mode and open the database.<\/p>\n
alter database arhivelog;\r\nalter database open;<\/pre>\n
2. We log all transactions in the database with the following command.<\/p>\n
alter database force logging;<\/pre>\n
3. In the Primary, we learn the values of the “DB_NAME” and “DB_UNIQUE_NAME” parameters.<\/p>\n
show parameter db_name<\/pre>\n
\"\"<\/p>\n
show parameter db_unique_name<\/pre>\n
\"\"<\/p>\n
4. We set the \u201cLOG_ARCHIVE_CONFIG\u201d parameter in the database.
\nFirst we write Primary database DB_UNIQUE_NAME and then we write standby database DB_UNIQUE_NAME.<\/p>\n
alter system set log_archive_config= \u2018dg_config=(ORCL,ORCLSTBY)\u2019<\/pre>\n
5. We configure the \u201cremote archive log\u201d option in the database.<\/p>\n
alter system set log_archive_dest_2=\u2019SERVICE=orclstby LGWR\r\nASYNC VALID_FOR=(ONLINE_LOGFILE,PRIMARY_ROLE)\r\nDB_UNIQUE_NAME=ORCLSTBY\u2019;<\/pre>\n
alter system set log_archive_dest_state_2=enable;<\/pre>\n
6.We set the parameters \u201cLOG_ARCHIVE_FORMAT\u201d, \u201cLOG_ARCHIVE_MAX_PROCESSES\u201d, \u201cREMOTE_LOGIN_PASSWORDFILE\u201d in the database as follows.<\/p>\n
alter system set log_archive_format=\u2019%t_%s_%r.arc\u2019 scope=spfile;\r\nalter system set log_archive_max_processes=30;\r\nalter system set remote_login_passwordfile=exclusive scope=spfile;<\/pre>\n
7. Considering the switchover situation, we set the following parameters so that the database is ready for migration, and then we restart the database.<\/p>\n
alter system set fal_server=orcl_stby;\r\nalter system set standby_file_management=auto;\r\nshutdown immediate;\r\nstartup;<\/pre>\n
8. We edit the tnsnames.ora file on both the primary and standby server. We write standby information to the primary server and primary server information to the standby server.<\/p>\n
vim $ORACLE_HOME\/network\/admin\/tnsnames.ora<\/pre>\n
\"\"<\/p>\n
9. For the switchover situation, we create a page for the standby database from the redologs in the primary database. (It is not mandatory.)<\/p>\n
sqlplus \/ as sysdba\r\nalter database add standby logfile (\u2018\/u01\/app\/oracle\/oradata\/ORCL\/standby_redo01.log\u2019) size 50m;\r\nalter database add standby logfile (\u2018\/u01\/app\/oracle\/oradata\/ORCL\/standby_redo01.log\u2019) size 50m;\r\nalter database add standby logfile (\u2018\/u01\/app\/oracle\/oradata\/ORCL\/standby_redo02.log\u2019) size 50m;\r\nalter database add standby logfile (\u2018\/u01\/app\/oracle\/oradata\/ORCL\/standby_redo03.log\u2019) size 50m;<\/pre>\n
10. We take a backup of the primary database, including archive logs.<\/p>\n
rman target \/\r\nbackup database plus archivelog;<\/pre>\n
11. We create control file and pfile for standby database.<\/p>\n
alter database create standby controlfile as \u2018\/tmp\/orcl_stby.ctl\u2019;\r\ncreate pfile=\u2019\/tmp\/initorcl_stby.ora\u2019 from spfile;<\/pre>\n
12. We make arrangements for the standby database in the created initorcl_stby.ora file.<\/p>\n
vim \/tmp\/initorcl_stby.ora<\/pre>\n
*.db_name=\u2019orclstby\u2019\r\n*.db_unique_name=\u2019ORCL_STBY\u2019\r\n*.fal_server=\u2019ORCL\u2019\r\n*.log_archive_dest_1=\u2019SERVICE=orcl ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=ORCL\u2019<\/pre>\n
Settings to be made in Standby Server:<\/h3>\n
1.We create the necessary directories on the standby server.<\/p>\n
mkdir -p \/u01\/app\/oracle\/oradata\/ORCL_STBY\r\ncd \/u01\/app\/oracle\/oradata\/ORCL_STBY\r\nmkdir controlfile datafile onlinelog\r\nmkdir -p \/u01\/app\/oracle\/fast_recovery_area\/ORCL_STBY\/\r\ncd \/u01\/app\/oracle\/fast_recovery_area\/ORCL_STBY\/\r\nmkdir archivelog backupset controlfile onlinelog\r\nmkdir -p $ORACLE_BASE\/admin\/$ORACLE_SID\/adump<\/pre>\n
2.Rman backup, archive logs, created control file, pfile and password file taken on the primary server are copied to the standby server using scp.<\/p>\n
scp \/tmp\/orcl_stby.ctl oracle@192.168.56.12:\/u01\/app\/oracle\/oradata\/ORCL_STBY\/controlfile\/<\/pre>\n
scp \/u01\/app\/oracle\/fast_recovery_area\/ORCL\/archivelog\/2021_03_23\/* oracle@192.168.56.12:\/u01\/app\/oracle\/fast_recovery_area\/ORCL\/archivelog\/2021_03_23\/<\/pre>\n
scp -P22 \/tmp\/initorcl_stby.ora oracle@192.168.56.12:\/u01\/app\/oracle\/product\/19.0.0\/dbhome_1\/dbs<\/pre>\n
scp -P22 $ORACLE_HOME\/dbs\/orapworcl oracle@192.168.56.12:\/u01\/app\/oracle\/product\/19.0.0\/dbhome_1\/dbs<\/pre>\n
3. The Listener restarts.<\/p>\n
lsnrctl reload<\/pre>\n
4. We return from the backup copied from the primary database on the server.<\/p>\n
export $ORACLE_SID=orcl_stby\r\nrman target \/\r\nstartup mount;\r\nrestore database;<\/pre>\n
5. After the necessary adjustments are made on both the primary and standby servers, we start the log apply process.<\/p>\n
alter database recover managed standby database using current logfile disconnect<\/pre>\n
6.\u00a0We can learn whether the archive log files are applied to the standby database with the following command.<\/p>\n
select sequence#, first_time, next_time, applied from v$archived_log order by sequence#;<\/pre>\n
 <\/p>\n
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In today’s article, I will talk about Oracle Data Guard Installation. I used Oracle Linux 7.6 and Oracle Database 19C while installing. There are conditions that must be met in order to install Oracle Data Guard. These are as follows: Oracle database must be Enterprise edition. Both servers must have the same operating system. Oracle …<\/p>\n
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<\/div>\n","protected":false},"author":3068,"featured_media":29673,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-29660","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-oracle"],"aioseo_notices":[],"yoast_head":"\nOracle Data Guard Installation - Database Tutorials<\/title>\n<meta name=\"description\" content=\"In today's article, I will talk about Oracle Data Guard Installation.I used Oracle Linux 7.6 and Oracle Database 19C while installing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dbtut.com\/index.php\/2022\/02\/15\/oracle-data-guard-installation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oracle Data Guard Installation - 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