由于环境限制, 现在需要把 2 套 rac 集群通过 dg 复制指向远端的单机多实例上面.
rac 指向第一个实例的前面已经有文档
这里直接添加第二个实例的复制搭建, 主要标出不同地方
单实例环境 --standby
- CentOS release 6.10 (Final)
- hostname dg1
- ip 10.*.30
- Instance_name cad
DB_NAME bol -- 此次 2 个一样
- db_unique_name cad
- SQL*Plus: Release 11.2.0.4.0 Production
文件系统规划
- Primary Standby
- +DATA/bol/datafile/test01.dbf /u01/App/Oracle/oradata/cad/data tempfile
- +data/bol/tempfile /u01/App/oracle/oradata/cad/control01.ctl
- +fra/bol/archivelog /u01/App/oracle/fast_recovery_area/cad
- +fra/bol/onlinelog /u01/App/oracle/oradata/orcl/cad
基本步骤与上面相同, 只是实例名有不同之处
1 主库 rac 集群, 设置为归档, 和 force logging 模式
2 主库添加 standby Redo log 文件
3 主备库修改 listener.ora 和 tnsnames.ora 文件
主库与之前基本相同
备库
- [oracle@dg1 admin]$ cat listener.ora
- # listener.ora Network Configuration File: /u01/App/oracle/product/11.2.0/db_1/network/admin/listener.ora
- # Generated by Oracle configuration tools.
- SID_LIST_LISTENER =
- (SID_LIST =
- (SID_DESC =
- (GLOBAL_DBNAME = orcl)
- (ORACLE_HOME = /u01/App/oracle/product/11.2.0/db_1)
- (SID_NAME = orcl)
- )
- (SID_DESC =
- (GLOBAL_DBNAME = cad)
- (ORACLE_HOME = /u01/App/oracle/product/11.2.0/db_1)
(SID_NAME = cad) --- 在主机 dg1 上 , 添加 2 个实例
- )
- )
- LISTENER =
- (DESCRIPTION_LIST =
- (DESCRIPTION =
- (ADDRESS = (PROTOCOL = TCP)(HOST = dg1)(PORT = 1521))
- )
- (DESCRIPTION =
- (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
- )
- )
- ADR_BASE_LISTENER = /u01/App/oracle
- [oracle@dg1 admin]$ cat tnsnames.ora
- bol=
- (DESCRIPTION =
- (ADDRESS = (PROTOCOL = TCP)(HOST = 10.*.15)(PORT = 1521))
- (ADDRESS = (PROTOCOL = TCP)(HOST = 10.*.16)(PORT = 1521))
- (CONNECT_DATA =
- (SERVER = DEDICATED)
- (SERVICE_NAME =bol)
- )
- )
- orcl=
- (DESCRIPTION =
- (ADDRESS = (PROTOCOL = TCP)(HOST = 10.*.30)(PORT = 1521))
- (CONNECT_DATA =
- (SERVER = DEDICATED)
- (SERVICE_NAME =orcl)
- )
- )
- cad=
- (DESCRIPTION =
- (ADDRESS = (PROTOCOL = TCP)(HOST = 10.*.30)(PORT = 1521))
- (CONNECT_DATA =
- (SERVER = DEDICATED)
- (SERVICE_NAME =cad)
- )
- )
- [oracle@rac07 ~]$ tnsping cad
4 在备库创建相应的目录
- mkdir -p /u01/App/oracle/fast_recovery_area/cad
- mkdir -p /u01/App/oracle/oradata/cad/data
- mkdir -p /u01/App/oracle/oradata/cad/tempfile
- mkdir -p /u01/App/oracle/admin/cad/adump
- mkdir -p /u01/App/oracle/admin/cad/data
- mkdir -p /u01/App/oracle/admin/cad/redo
- mkdir -p /u01/App/oracle/admin/cad/tempfile
- mkdir -p /u01/App/oracle/archive/cad
5 修改主备库参数和把主库密码文件 cp 到备库
-- 备库参数文件
- cad.__db_cache_size=469762048
- cad.__java_pool_size=16777216
- cad.__large_pool_size=33554432
- cad.__pga_aggregate_target=654311424
- cad.__sga_target=956301312
- cad.__shared_io_pool_size=0
- cad.__shared_pool_size=385875968
- cad.__streams_pool_size=33554432
- *.audit_file_dest='/u01/app/oracle/admin/cad/adump'
- *.audit_trail='db'
- *.compatible='11.2.0.4.0'
- *.control_files='/u01/app/oracle/oradata/cad/control01.ctl','/u01/app/oracle/fast_recovery_area/cad/control02.ctl'
- *.db_block_size=8192
- *.db_domain=''*.db_file_name_convert='+DATA/bol/datafile','/u01/app/oracle/oradata/cad/data','+DATA/bol/tempfile','/u01/app/oracle/oradata/cad/tempfile'*.db_name='bol'*.service_names='cad'*.db_unique_name='cad'*.db_recovery_file_dest='/u01/app/oracle/fast_recovery_area/cad'
- *.db_recovery_file_dest_size=6005194752
- *.diagnostic_dest='/u01/app/oracle'
- *.dispatchers='(PROTOCOL=TCP) (SERVICE=bolXDB)'
- *.fal_server='cad'
- *.log_archive_config='dg_config=(bol,cad)'
- *.log_archive_dest_1='location=/u01/app/oracle/archive/cad valid_for=(all_logfiles,all_roles) db_unique_name=cad'
- *.log_archive_dest_2='service=bol valid_for=(online_logfiles,primary_role) db_unique_name=bol'
- *.log_archive_dest_state_1='ENABLE'
- *.log_archive_dest_state_2='ENABLE'
- *.log_archive_format='%t_%s_%r.arch'
- *.log_file_name_convert='+FRA/bol/onlinelog','/u01/app/oracle/admin/cad/redo'
- *.memory_target=1606418432
- *.open_cursors=300
- *.processes=500
- *.remote_login_passwordfile='exclusive'
- *.standby_file_management='auto'
- *.undo_tablespace='UNDOTBS1'
6 使用 spfile 将备库启动 nomount 状态并启动监听
7 备库进行 duplicate
- export ORACLE_SID=cad
- rman target sys/****@10.*.29/bol auxiliary sys/****@cad nocatalog
8 开启 dg 复制
来源: http://www.linuxidc.com/Linux/2019-03/157578.htm