239 lines
8.2 KiB
Markdown
239 lines
8.2 KiB
Markdown
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Network configuration
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---------------------
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`/etc/listener.ora` on primary server:
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LISTENER_DG =
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(ADDRESS_LIST=
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(ADDRESS=(PROTOCOL=tcp)(HOST=taris.swgalaxy)(PORT=1523))
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)
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SID_LIST_LISTENER_DG =
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(SID_LIST =
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(SID_DESC =
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(GLOBAL_DBNAME = ASTYPRD_DGMGRL)
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(SID_NAME = ASTYPRD)
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(ORACLE_HOME = /app/oracle/product/21)
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)
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)
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`/etc/listener.ora` on secondary server:
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LISTENER_DG =
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(ADDRESS_LIST=
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(ADDRESS=(PROTOCOL=tcp)(HOST=mandalore.swgalaxy)(PORT=1523))
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)
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SID_LIST_LISTENER_DG =
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(SID_LIST =
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(SID_DESC =
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(GLOBAL_DBNAME = ASTYDRP_DGMGRL)
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(SID_NAME = ASTYDRP)
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(ORACLE_HOME = /app/oracle/product/21)
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)
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)
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Start `LISTENER_DG` on both servers:
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lsnrctl start LISTENER_DG
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`/etc/tnsnames.ora` on both servers:
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ASTYPRD_DGMGRL =
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(DESCRIPTION =
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(ADDRESS_LIST =
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(ADDRESS = (PROTOCOL = TCP)(HOST = taris.swgalaxy)(PORT = 1523))
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)
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(CONNECT_DATA =
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(SERVER = DEDICATED)
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(SERVICE_NAME = ASTYPRD_DGMGRL)
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)
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)
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ASTYDRP_DGMGRL =
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(DESCRIPTION =
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(ADDRESS_LIST =
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(ADDRESS = (PROTOCOL = TCP)(HOST = mandalore.swgalaxy)(PORT = 1523))
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)
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(CONNECT_DATA =
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(SERVER = DEDICATED)
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(SERVICE_NAME = ASTYDRP_DGMGRL)
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)
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)
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Dataguard initial duplication
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-----------------------------
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From primary init.ora, create an init.ora from secondary database, test-it starting the secondary database in nomount and create a spfile from this init.ora. Startup secondary database in nomount mode. Copy also the passwordfile from primry to secondary server.
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Try cross connections from both primary and secondary servers:
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sqlplus 'sys/"*****"'@ASTYPRD_DGMGRL as sysdba
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sqlplus 'sys/"*****"'@ASTYDRP_DGMGRL as sysdba
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Create standby redolog on primary database using the result of following queries:
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select 'ALTER DATABASE ADD STANDBY LOGFILE THREAD '||thread#||' size '||bytes||';' from v$log;
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select distinct 'ALTER DATABASE ADD STANDBY LOGFILE THREAD '||thread#||' size '||bytes||';' from v$log;
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If you plan to use backups on standby database, set required RMAN parameters **prior** to duplicate step:
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configure archivelog deletion policy to applied on all standby;
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configure db_unique_name 'ASTYDRP' connect identifier 'ASTYDRP_DGMGRL';
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configure db_unique_name 'ASTYPRD' connect identifier 'ASTYPRD_DGMGRL';
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Duplicate primary database *for standby*:
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rman target='sys/"*****"'@ASTYPRD_DGMGRL auxiliary='sys/"*****"'@ASTYDRP_DGMGRL
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run
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{
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allocate channel pri01 device type disk;
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allocate channel pri02 device type disk;
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allocate channel pri03 device type disk;
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allocate channel pri04 device type disk;
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allocate channel pri05 device type disk;
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allocate channel pri06 device type disk;
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allocate channel pri07 device type disk;
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allocate channel pri08 device type disk;
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allocate channel pri09 device type disk;
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allocate channel pri10 device type disk;
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allocate auxiliary channel aux01 device type disk;
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allocate auxiliary channel aux02 device type disk;
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allocate auxiliary channel aux03 device type disk;
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allocate auxiliary channel aux04 device type disk;
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allocate auxiliary channel aux05 device type disk;
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allocate auxiliary channel aux06 device type disk;
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allocate auxiliary channel aux07 device type disk;
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allocate auxiliary channel aux08 device type disk;
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allocate auxiliary channel aux09 device type disk;
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allocate auxiliary channel aux10 device type disk;
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duplicate database 'ASTY' for standby
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from active database using compressed backupset section size 512M;
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}
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It is nor mandatory but recommanded to activate flashback on both databases (leaving for exmple then default retention target of 1 day):
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alter database flashback ON;
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Dataguard broker configuration
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------------------------------
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On primary database:
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alter system set dg_broker_config_file1='/app/oracle/base/admin/ASTYPRD/dgmgrl/dr1ASTYPRD.dat' scope=both sid='*';
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alter system set dg_broker_config_file2='/app/oracle/base/admin/ASTYPRD/dgmgrl/dr2ASTYPRD.dat' scope=both sid='*';
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alter system set dg_broker_start=TRUE scope=both sid='*';
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On secondary database:
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alter system set dg_broker_config_file1='/app/oracle/base/admin/ASTYDRP/dgmgrl/dr1ASTYDRP.dat' scope=both sid='*';
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alter system set dg_broker_config_file2='/app/oracle/base/admin/ASTYDRP/dgmgrl/dr2ASTYDRP.dat' scope=both sid='*';
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alter system set dg_broker_start=TRUE scope=both sid='*';
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On primary or secondary server:
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dgmgrl
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connect sys/*****@ASTYPRD_DGMGRL
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create configuration ASTY as
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primary database is ASTYPRD
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connect identifier is ASTYPRD_DGMGRL;
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add database ASTYDRP
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as connect identifier is ASTYDRP_DGMGRL
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maintained as physical;
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enable configuration;
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edit database 'astyprd' set property ArchiveLagTarget=0;
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edit database 'astyprd' set property LogArchiveMaxProcesses=2;
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edit database 'astyprd' set property LogArchiveMinSucceedDest=1;
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edit database 'astyprd' set property StandbyFileManagement='AUTO';
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edit database 'astydrp' set property ArchiveLagTarget=0;
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edit database 'astydrp' set property LogArchiveMaxProcesses=2;
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edit database 'astydrp' set property LogArchiveMinSucceedDest=1;
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edit database 'astydrp' set property StandbyFileManagement='AUTO';
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edit instance 'ASTYPRD' set property 'StaticConnectIdentifier'='ASTYPRD_DGMGRL';
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edit instance 'ASTYDRP' set property 'StaticConnectIdentifier'='ASTYPRD_DGMGRL';
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edit instance 'ASTYPRD' set property 'StaticConnectIdentifier'='(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=taris.swgalaxy)(PORT=1523))(CONNECT_DATA=(SERVICE_NAME=ASTYPRD_DGMGRL)(INSTANCE_NAME=ASTYPRD)(SERVER=DEDICATED)))';
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edit instance 'ASTYDRP' set property 'StaticConnectIdentifier'='(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=mandalore.swgalaxy)(PORT=1523))(CONNECT_DATA=(SERVICE_NAME=ASTYDRP_DGMGRL)(INSTANCE_NAME=ASTYDRP)(SERVER=DEDICATED)))';
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Wait a couple of minutes (after eventually archiving current log on primary database) therefore:
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show configuration
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show database 'astyprd'
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show database 'astydrp'
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validate database 'astyprd'
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validate database 'astydrp'
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To disable/enable redo apply on standby database:
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edit database 'astydrp' set state='APPLY-OFF';
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edit database 'astydrp' set state='ONLINE';
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Backup primary and standby databases
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------------------------------------
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Backup primary database:
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rman target /
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run
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{
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set nocfau;
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allocate channel ch01 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYPRD/%d_%U_%s_%t.bck';
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allocate channel ch02 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYPRD/%d_%U_%s_%t.bck';
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allocate channel ch03 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYPRD/%d_%U_%s_%t.bck';
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allocate channel ch04 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYPRD/%d_%U_%s_%t.bck';
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backup as compressed backupset incremental level 0 database section size 2G include current controlfile plus archivelog delete input;
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release channel ch01;
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release channel ch02;
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release channel ch03;
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release channel ch04;
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allocate channel ch01 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYPRD/%d_%U_%s_%t.controlfile';
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backup current controlfile;
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release channel ch01;
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}
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Backup standby database:
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rman target='"sys/*****"'
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run
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{
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set nocfau;
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allocate channel ch01 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYDRP/%d_%U_%s_%t.bck';
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allocate channel ch02 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYDRP/%d_%U_%s_%t.bck';
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allocate channel ch03 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYDRP/%d_%U_%s_%t.bck';
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allocate channel ch04 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYDRP/%d_%U_%s_%t.bck';
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backup as compressed backupset incremental level 0 database section size 2G include current controlfile plus archivelog delete input;
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release channel ch01;
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release channel ch02;
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release channel ch03;
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release channel ch04;
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allocate channel ch01 device type disk format '/mnt/yavin4/tmp/_oracle_/orabackup/ASTYDRP/%d_%U_%s_%t.controlfile';
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backup current controlfile;
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release channel ch01;
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}
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