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主备
修改/etc/hosts
127.0.0.1 ? localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 ? ? ? ? localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.31.24 nccorcldb1
192.168.31.25 nccorcldb2
主：
修改listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
? (DESCRIPTION_LIST =
? ? (DESCRIPTION =
? ? ? (ADDRESS = (PROTOCOL = TCP)(HOST = nccorcldb1)(PORT = 1521))
? ? ? (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
? ? )
? )
SID_LIST_LISTENER =
? ? ? ? (SID_LIST=
? ? ? ? ?(SID_DESC =
? ? ? ? ? (GLOBAL_DBNAME = orcl)
? ? ? ? ? ?(SID_NAME = orcl)
? ? ? ? ?)
? ? ? ? )
ADR_BASE_LISTENER = /u01/app/oracle
备：
修改listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
? (DESCRIPTION_LIST =
? ? (DESCRIPTION =
? ? ? (ADDRESS = (PROTOCOL = TCP)(HOST = nccorcldb2)(PORT = 1521))
? ? ? (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
? ? )
? )
SID_LIST_LISTENER =
? ? ? ? (SID_LIST=
? ? ? ? ?(SID_DESC =
? ? ? ? ? (GLOBAL_DBNAME = orcldg)
? ? ? ? ? ?(SID_NAME = orcl)
? ? ? ? ?)
? ? ? ? )
ADR_BASE_LISTENER = /u01/app/oracle
主：修改tnsnames.ora
orcl =
? (DESCRIPTION =
? ? (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.24)(PORT = 1521))
? ? (CONNECT_DATA =
? ? ? (SERVER = DEDICATED)
? ? ? (SERVICE_NAME = orcl)
? ? )
? )
orcldg =
? (DESCRIPTION =
? ? (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.31.25)(PORT = 1521))
? ? (CONNECT_DATA =
? ? ? (SERVER = DEDICATED)
? ? ? (SERVICE_NAME = orcldg)
? ? )
? )
~ ? ? ? ? ? ? ? ? ? ? ? ? ? ??
?主：添加logfile；
??? ?alter database add standby logfile group 4 '/u01/app/oracle/oradata/orcl/redo04.log' size 50M;
?? ?alter database add standby logfile group 5 '/u01/app/oracle/oradata/orcl/redo05.log' size 50M;
?? ?alter database add standby logfile group 6 '/u01/app/oracle/oradata/orcl/redo06.log' size 50M;
?? ?alter database add standby logfile group 7 '/u01/app/oracle/oradata/orcl/redo07.log' size 50M;
?主：生成PFILE和密码文件传输至备
?主：rman target /
?CROSSCHECK ARCHIVELOG ALL;
backup archivelog all format '/u01/arch_casc_%s_%t_%p.bak';
传输至备；
备：
修改pfile文件
orcl.__db_cache_size=1509949440
orcl.__java_pool_size=16777216
orcl.__large_pool_size=33554432
orcl.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
orcl.__pga_aggregate_target=1325400064
orcl.__sga_target=1962934272
orcl.__shared_io_pool_size=0
orcl.__shared_pool_size=369098752
orcl.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/orcl/adump'
*.audit_trail='db'
*.compatible='11.2.0.4.0'
*.control_files='/u01/app/oracle/oradata/orcl/control01.ctl','/u01/app/oracle/fast_recovery_area/orcl/control02.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='orcl'
*.db_recovery_file_dest='/u01/app/oracle/fast_recovery_area'
*.db_recovery_file_dest_size=4385144832
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
*.memory_target=3279945728
*.open_cursors=300
*.processes=1500
*.remote_login_passwordfile='EXCLUSIVE'
*.sessions=1655
*.undo_tablespace='UNDOTBS1'
*.db_unique_name='orcldg'
*.log_archive_config='dg_config=(orcl,orcldg)'
*.log_archive_dest_1='location=/u01/app/oracle/archivelog valid_for=(all_logfiles,all_roles) db_unique_name=orcldg'
*.log_archive_dest_2='service=orcl ?lgwr sync affirm valid_for=(online_logfiles,primary_role) ?db_unique_name=orcl'
*.log_archive_dest_state_1=enable
*.log_archive_dest_state_2=enable
*.log_archive_max_processes=10
*.fal_server=orcl
*.fal_client=orcldg
*.standby_file_management=auto
备：
sqlplus / as sysdba
startup nomount pfile='/u01/app/oracle/product/11.2.0/dbs/initorcl.ora'
主：
rman target sys/sys_202111 auxiliary sys/sys_202111@orcldg
duplicate target database for standby from active database NOFILENAMECHECK;
备：rman target /
crosscheck backup;
restore archivelog all;
??
主：
show parameter dest_
log_archive_dest_2?? ??? ? ? ? string?? ? SERVICE=orcldg LGWR ASYNC VALI
?? ??? ??? ??? ??? ??? ? D_FOR=(ONLINE_LOGFILES,PRIMARY
?? ??? ??? ??? ??? ??? ? _ROLE) DB_UNIQUE_NAME=orcldg
备：
show parameter dest_
log_archive_dest_1?? ??? ? ? ? string?? ? location=/u01/app/oracle/archi
?? ??? ??? ??? ??? ??? ? velog valid_for=(all_logfiles,
?? ??? ??? ??? ??? ??? ? all_roles) db_unique_name=orcl
?? ??? ??? ??? ??? ??? ? dg
log_archive_dest_2?? ??? ? ? ? string?? ? service=orcl ?lgwr sync affirm
?? ??? ??? ??? ??? ??? ? ?valid_for=(online_logfiles,pr
?? ??? ??? ??? ??? ??? ? imary_role) ?db_unique_name=or
?? ??? ??? ??? ??? ??? ? cl
备：
show parameter fal
fal_client?? ??? ??? ? ? ? string?? ? orcldg
fal_server?? ??? ??? ? ? ? string?? ? orcl
主备：
show parameter LOG_ARCHIVE_CONFIG
log_archive_config?? ??? ? ? ? string?? ? DG_CONFIG=(orcl,orcldg)
主：
?alter system set LOG_ARCHIVE_CONFIG='DG_CONFIG=(orcl,orcldg)' scope=both;
备：
shutdown immediate;
startup;
alter database recover managed standby database disconnect from session;
常用查询：
alter system switch logfile;
?select * from v$log;
?select * from v$logfile;
select status,error from v$archive_dest;
select switchover_status,open_mode from v$database;
select process,pid,client_process,thread#,sequence#,status from v$managed_standby;
select NAME ,VALUE from v$dataguard_stats;
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