DG终于搭建完成了，不容易啊。记录下，方便以后查找。主要配置如下——

  OS--CentOS 5.4 x64

  DB--Oracle 10g R2

IP

db_name

db_unique_name

service_name

172.20.10.194

demo1

primary

demo1

172.20.10.195

demo1

standby

demo1

1、将主库shutdown，并备份主库的数据文件，/oracle/app/oradata/目录下所有文件

2、将主库置于mount状态，创建备库的控制文件

alter database create standby controlfile as '/tmp/control01.ctl';

3、create pfile from spfile；修改成如下内容

主库控制文件

demo1.__db_cache_size=432013312
demo1.__java_pool_size=8388608
demo1.__large_pool_size=4194304
demo1.__shared_pool_size=155189248
*.archive_lag_target=0
*.background_dump_dest='/oracle/app/admin/demo1/bdump'
*.compatible='10.1.0.2.0'
*.control_files='/oracle/app/oradata/demo1/control01.ctl','/oracle/app/oradata/demo1/control02.ctl','/oracle/app/oradata/demo1/control03.ctl'#Restore Controlfile
*.core_dump_dest='/oracle/app/admin/demo1/cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='demo1'
*.db_recovery_file_dest='/oracle/app/oracle/product/10.1.0/Db_1/flash_rec_area'
*.db_recovery_file_dest_size=6442450944
*.db_unique_name='primary'##############（备库改为standby）
*.dg_broker_start=TRUE
*.dispatchers='(PROTOCOL=TCP) (SERVICE=demo1XDB)'
*.fal_client='standby'
*.fal_server='primary'
*.job_queue_processes=10
*.log_archive_config='nodg_config'
*.log_archive_dest_1='LOCATION=/oracle/archive'
demo1.log_archive_dest_1='location="/oracle/archive"','valid_for=(ONLINE_LOGFILE,ALL_ROLES)'
*.log_archive_dest_2='SERVICE=standby'
*.log_archive_dest_state_1='enable'
*.log_archive_dest_state_2='ENABLE'
demo1.log_archive_format='%t_%s_%r.dbf'
*.log_archive_max_processes=2
*.log_archive_min_succeed_dest=1
demo1.log_archive_trace=0
*.open_cursors=300
*.pga_aggregate_target=201326592
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.service_names='demo1','primary_XPT'
*.sga_target=603979776
demo1.standby_archive_dest=''
*.standby_file_management='AUTO'
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/oracle/app/admin/demo1/udump'

4、将上面三步生成的文件都拷贝到standby上。

5、主库和备库的tnsnames.ora完全一样，如下：

PRIMARY =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SID = demo1)
    )
  )

STANDBY =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = standby)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SID = demo2)
    )
  )

6、主库的listener.ora配置如下：

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(PORT = 1521))
      )
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
      )
    )
  )

SID_LIST_ORACLE =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /oracle/app/oracle/product/10.1.0/Db_1)
      (PROGRAM = extproc)
    )
  )

 

备库的listener.ora配置如下：

LISTENER =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = standby)(PORT = 1521))
  )

7、启动备库

SQL> startup nomount;

SQL> alter database mount standby database;

SQL> alter database recover managed standby database disconnect from session;

 

8、查看状态

主库

SQL> select name,database_role from v$database;

NAME      DATABASE_ROLE
--------- ----------------
DEMO1     PRIMARY

 

SQL> show parameter standby;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
standby_archive_dest                 string
standby_file_management              string      AUTO

 

备库

SQL> select name,database_role from v$database;

NAME      DATABASE_ROLE
--------- ----------------
DEMO1     PHYSICAL STANDBY

 

SQL> show parameter standby;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
standby_archive_dest                 string      ?/dbs/arch
standby_file_management              string      MANUAL

 

附录--

关于Standby库的维护操作

启动Redo应用：

SQL>startup mount;

SQL>alter database recover managed standby database disconnect from session;

切换到open状态供查询

关闭Redo应用：

SQL> alter database recover managed standby database cancel;

SQL>alter database open read only;

在备用数据库上，查看是否已经接受到归档日志：

select sequence#, first_time, next_time from v$archived_log order by sequence#;

在备用数据库上，查看归档日志是否被应用：

select sequence#,applied from v$archived_log order by sequence#;

 

SQL>ALTER DATABASE ADD STANDBY LOGFILE THREAD 5 ('/oracle/dbs/log1c.rdo','/oracle/dbs/log2c.rdo') SIZE 50M;

SQL> ALTER DATABASE FORCE LOGGING;