使用RMAN异机建立Dataguard
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1.建立相应目录(备库)
mkdir -p /u01/app/oracle/admin/rac1/adump
mkdir -p /u01/app/oracle/admin/rac1/bdump
mkdir -p /u01/app/oracle/admin/rac1/cdump
mkdir -p /u01/app/oracle/admin/rac1/udump
mkdir -p /u01/app/oracle/oradata/rac1/
mkdir -p /u01/app/oracle/oradata/archivelog/
2.创建密码文件(备库)
orapwd file=$ORACLE_HOME/dbs/orapwrac1 password=sysdba entries=10
3.创建pfile(备库)
拷贝pfile到备库的相应目录下，并修正
增加
*.fal_client='standby'
*.fal_server='primary'
*.standby_archive_dest='/oradata/rac1/archivelog'
*.standby_management='AUTO'
*.service_names=rac1
*.local_listener='(ADDRESS_LIST=(Address=(Protocol=TCP)(Host=192.168.1.98)(Port=1521)) (Adress=(Protocol=IPC)(K
ey=rac1)))'
总的如下:
rac1.__db_cache_size=180355072
rac1.__java_pool_size=4194304
rac1.__large_pool_size=4194304
rac1.__shared_pool_size=92274688
rac1.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/rac1/adump'
*.background_dump_dest='/u01/app/oracle/admin/rac1/bdump'
*.compatible='10.2.0.1.0'
*.control_files='/u01/app/oracle/oradata/rac1/control01.ctl','/u01/app/oracle/oradata/rac1/control02.ctl','/u01/app/oracle/oradata/rac1/control03.ctl'
*.core_dump_dest='/u01/app/oracle/admin/rac1/cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='rac1'
*.fal_client='standby'
*.fal_server='primary'
*.log_archive_dest_1='LOCATION=/u01/app/oracle/oradata/rac1/archive/'
*.log_archive_format='%t_%s_%r.dbf'
*.job_queue_processes=10
*.open_cursors=300
*.pga_aggregate_target=94371840
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=285212672
*.standby_archive_dest='/u01/app/oracle/oradata/rac1/archive'
*.standby_file_management='AUTO'
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/u01/app/oracle/admin/rac1/udump'
*.service_names=rac1
*.local_listener='(ADDRESS_LIST=(Address=(Protocol=TCP)(HOST=192.168.1.89)(Port=1521)) (Address=(Portocol=IPC)(Key=rac1)))'
主库pfile
rac1.__db_cache_size=180355072
rac1.__java_pool_size=4194304
rac1.__large_pool_size=4194304
rac1.__shared_pool_size=92274688
rac1.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/rac1/adump'
*.background_dump_dest='/u01/app/oracle/admin/rac1/bdump'
*.compatible='10.2.0.1.0'
*.control_files='/u01/app/oracle/oradata/rac1/control01.ctl','/u01/app/oracle/oradata/rac1/control02.ctl','/u01/app/oracle/oradata/rac1/control03.ctl'
*.core_dump_dest='/u01/app/oracle/admin/rac1/cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='rac1'
*.job_queue_processes=10
*.log_archive_dest_1='LOCATION=/u01/app/oracle/oradata/rac1/archive'
*.log_archive_dest_2='service=standby'
*.log_archive_format='%t_%s_%r.arc'
*.open_cursors=300
*.pga_aggregate_target=94371840
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=285212672
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/u01/app/oracle/admin/rac1/udump'
4.修改监听
主库 listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = rac1)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(SID_NAME = rac1)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.88)(PORT = 1521))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
)
主库tnsnames.ora
PRIMARY =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.88)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = rac1)
)
)
STANDBY =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.89)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = rac1)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
备库
listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME =rac1)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(SID_NAME = rac1)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.89)(PORT = 1521))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
)
tnsnames.ora
standby =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.89)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = rac1)
)
)
primary =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.88)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = rac1)
)
)
5.利用RMAN备份主库数据库
RMAN> run {
2> allocate channel d1 device type disk;
3> backup as compressed backupset
4> incremental level=0
5> format='/u01/rmanbak/inc0_%d_%U'
6> tag='inc0'
7> channel=d1
8> database;
9> sql "alter system switch logfile";
10> backup as compressed backupset
11> format='/u01/rmanbak/arch_%d_%U'
12> tag='arch'
13> channel=d1
14> archivelog all delete input;
15> backup as compressed backupset
16> format='/u01/rmanbak/standby.ctl'
17> tag='standby'
18> channel=d1
19> current controlfile for standby reuse;
20> }
6.启动备库到nomount状态
创建spfile
7.利用rman连接备库
RMAN> connect auxiliary sys/oracle@standby
connected to auxiliary database: RAC1 (not mounted)
8.把主库rman备份拷贝到备库的相应目录
9.在主库上恢复数据库
RMAN> run {
2> allocate auxiliary channel d1 device type disk;
3> duplicate target database for standby nofilenamecheck;
4> }
10.在主库中进行日志切换，同时查看备库alert_rac1.log
SQL> alter system switch logfile;
11.在备库中进行验证
SQL> alter database recover managed standby database disconnect from session; -----启动redo应用
SQL> alter database recover managed standby database cancel;------自动恢复传过来的log
SQL>recover managed standby database cancel; -----停止恢复
SQL> alter database open read only;
SQL> select * from t11;
12.恢复备库接收状态
SQL> startup nomount force;
SQL> alter database mount standby database;
SQL> alter database recover managed standby database disconnect from session;
13、简述命令
1、alter database recover managed standby database disconnect from session -----启动redo应用
2、alter database recover managed standby database using current logfile disconnect from session -----启动实时应用
3、alter database recover managed standby database cancel ------停止redo应用
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