硬件和系统软件说明:
操作系统:Oracle Linux 5.8 64位
oracle软件:oracle 11.2.0.1
角色 主机名 IP地址 数据库 服务名
primary dg1 192.168.3.55 tong tong
standby dg2 192.168.3.56 tong cheng
一.primary主库操作
1.在primary服务器安装oracle软件,并创建数据库.在standby服务器只安装oracle软件,不创建数据库.
2.配置监听
[oracle@dg1 dbs]$ cd /u01/product/11.2.0.1/db_1/network/admin/
[oracle@dg1 admin]$ vim listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = tong) --primary库的名字
(ORACLE_HOME = /u01/product/11.2.0.1/db_1)
(SID_NAME = tong)
)
)
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.3.55)(PORT = 1521)) --prmary库的IP地址
ADR_BASE_LISTENER = /u01
[oracle@dg1 admin]$ vim tnsnames.ora
tong =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.3.55)(PORT = 1521)) --primary库的IP地址
(CONNECT_DATA =
(SERVICE_NAME = tong) --primary库的服务名
cheng =
192.168.3.56)(PORT = 1521)) --standby库的IP地址
(SERVICE_NAME = cheng) --standby库的服务名
[oracle@dg1 admin]$ lsnrctl stop
[oracle@dg1 admin]$ lsnrctl start
3.在primary库启用归档和日志强行写入redo文件
sql> shutdown immediate
sql> startup mount
sql> alter database archivelog;
sql> alter database open;
sql> alter database force logging;
sql> select force_logging from v$database;
4.在primary 库添加standbt日志文件(standby文件和redo文件大小一至,文件个数比redo多一个)
sql> alter database add standby logfile group 4 ('/u01/oradata/tong/sredo04.log') size 50m;
sql> alter database add standby logfile group 4 ('/u01/oradata/tong/sredo04.log') size 50m;
sql> select * from v$logfile order by 1;
sql> create pfile from spfile;
sql> shutdown immediate
[oracle@dg1 dbs]$ vim inittong.ora
*.db_name='tong' --数据库名
*.db_unique_name=tong --数据库服务名
*.fal_server='cheng' --primary数据库服务名,是监听文件里面的名字(在standby库名字要和fal_client对调)
*.fal_client='tong' --standby数据库服务名,是监听文件里面的名字
*.standby_file_management=auto
*.log_archive_start=true
*.db_file_name_convert='/u01/oradata/tong/','/u01/oradata/tong/'
*.log_file_name_convert='/u01/oradata/tong/',sans-serif;">*.log_archive_config='dg_config=(tong,cheng)'
*.log_archive_dest_1='LOCATION=/u01/oradata/tong/archive valid_for=(all_logfiles,all_roles) db_unique_name=tong' --归档文件存放的路径
*.log_archive_dest_2='service=cheng LGWR SYNC AFFIRM valid_for=(online_logfiles,all_roles) db_unique_name=cheng' --cheng是standby库的服务名
*.log_archive_dest_state_1='ENABLE'
*.log_archive_dest_state_2='ENABLE'
[oracle@dg1 dbs]$ sqlplus / as sysdba
sql*Plus: Release 11.2.0.1.0 Production on Wed Nov 9 11:56:26 2016
Copyright (c) 1982,2009,Oracle. All rights reserved.
Connected to an idle instance.
sql> create spfile from pfile; --用pfile文件创建spfile文件
sql>
7.启动主库
[oracle@dg1 dbs]$ sqlplus / as sysdba
sql*Plus: Release 11.2.0.1.0 Production on Wed Nov 9 11:56:26 2016
Connected to an idle instance.
sql>startup
ORACLE instancestarted
sql> alterdatabase set standby database to maximize availability;
Databasealtered.
sql> exit
[oracle@dg1 dbs]$ rman target /
RMAN> backup database plus archivelog;
RMAN>backup current controlfile for standby;
9.考贝文件到standby服务器
[oracle@dg1 dbs]$ cd /u01/flash_recovery_area/ --考贝闪回恢复区的备份文件
[oracle@dg1 flash_recovery_area]$ scp * oracle@dg2;/u01/flash_recovery_area/
[oracle@dg1 flash_recovery_area]$ cd /u01/product/11.2.0.1/db_1/dbs/
[oracle@dg1 dbs]$ scp *.ora oracle@dg2:/u01/product/11.2.0.1/db_1/dbs/ --考贝pfile和spfile参数文件
[oracle@dg1 dbs]$ cd /u01/product/11.2.0.1/db_1/network/admin/
[oracle@dg1 admin]$ scp listener.ora tnsnames.oraoracle@dg2:/u01/product/11.2.0.1/db_1/network/admin/ --考贝监听文件
[oracle@dg1 admin]$
二.standby从库操作
10.修改监听的地址
[oracle@dg2 ~]$ cd /u01/product/11.2.0.1/db_1/network/admin/
[oracle@dg2 admin]$ vim listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = cheng)
(ORACLE_HOME = /u01/product/11.2.0.1/db_1)
(SID_NAME = @H_502_457@ )
)
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.3.56)(PORT = 1521))
ADR_BASE_LISTENER = /u01
[oracle@dg2 admin]$ vim tnsnames.ora
tong =
(ADDRESS_LIST =
192.168.3.55)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = tong)
cheng =
(SERVICE_NAME = cheng)
[oracle@dg2 admin]$ lsnrctl stop
[oracle@dg2 admin]$ lsnrctl start
[oracle@dg2 admin]$ cd /u01/product/11.2.0.1/db_1/dbs/
[oracle@dg2 dbs]$ mv inittong.ora initcheng.ora --修改pfile文件名
[oracle@dg2 ~]$ cp /u01/flash_recovery_area/tong/control02.ctl /u01/oradata/tong/control01.ctl --新的控制文件替换旧控制文件
12.恢复数据库
[oracle@dg2 ~]$ rman target sys/system@tong auxiliary /
RMAN>duplicate target database for standby nofilenamecheck;
[oracle@dg2 dbs]$ cd /u01/product/11.2.0.1/db_1/dbs/
[oracle@dg2 dbs]$ vim initcheng.ora
*.db_name='tong'
*.db_recovery_file_dest='/u01/flash_recovery_area'
*.db_recovery_file_dest_size=4070572032
*.diagnostic_dest='/u01'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=tongXDB)'
*.log_archive_format='%t_%s_%r.dbf'
*.memory_target=833617920
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
*.db_unique_name=cheng
*.fal_server='tong'
*.fal_client='cheng'
*.log_archive_dest_1='LOCATION=/u01/oradata/tong/archive valid_for=(all_logfiles,all_roles) db_unique_name=cheng'
*.log_archive_dest_2='service=cheng LGWR SYNC AFFIRM valid_for=(online_logfiles,sans-serif;">*.log_archive_dest_state_1='ENABLE'
[oracle@dg2 dbs]$
14.启动standby库
sql> startup nomount;
sql> alter database mount standby database;
sql> alter database add standby logfile;
sql> alter database add standby logfile;
sql> alter database add standby logfile;
sql> alter database add standby logfile;
sql> alter database recover managed standby database using current logfile disconnect fromsession;
15.检查standby的日志
[oracle@dg2 dbs]$ tailf /u01/diag/rdbms/cheng/cheng/trace/alert_cheng.log
Tue Nov 08 22:47:42 2016
SMON: enabling cache recovery
Tue Nov 08 22:47:43 2016
Dictionary check beginning
Dictionary check complete
Database Characterset is AL32UTF8
No Resource Manager plan active
replication_dependency_tracking turned off (no async multimaster replication found)
Physical standby database opened for read only access.
Completed: alter database open read only
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