Oracle数据迁移之rman活动数据库复制

1、设置主库为归档模式

SQL> shutdown immediate

SQL> startup mount

SQL> alter database archivelog;

SQL> archive log list;

2、开启force logging

SQL> alter database force logging;

Database altered.

SQL>

SQL> select name,database_role,log_mode,force_logging from v$database;

NAME DATABASE_ROLE LOG_MODE FORCE_LOG

---------- ------------------------- --------------- ---------

ORCL PRIMARY ARCHIVELOG YES

3、配置监听文件，在auxiliary库上配置即可

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost.localdomain)(PORT = 1521))

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

)

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(GLOBAL_DBNAME = orcl)

(ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)

(SID_NAME = orcl)

)

)

ADR_BASE_LISTENER = /u01/app/oracle

4、配置tnsnames.ora文件

# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

ORCL =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.40)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = orcl)

)

)

ORCLDB =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.41)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = orcl)

)

)

5、cp target数据库的密码文件到auxiliary库

6、为auxiliary库创建必要的目录

7、为auxiliary准备一个参数文件，包含两个参数即可：

db_name=orcl

db_unique_name=orcl

8、启动auxiliary库到nomount状态

9、Rman连接target库和auxiliary库

[oracle@kaifai dbs]$ rman target sys/oracle@orcl auxiliary sys/oracle@orcldb

Recovery Manager: Release 11.2.0.4.0 - Production on Thu Jul 7 16:01:51 2016

Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.

connected to target database: ORCL (DBID=1439188069)

connected to auxiliary database: ORCL (not mounted)

RMAN>

10、rman下运行如下脚本

首先看一下target数据库的物理结构：

SQL> select name from v$datafile;

NAME

--------------------------------------------------------------------------------

/data/oradata/orcl/orcl/system01.dbf

/data/oradata/orcl/orcl/sysaux01.dbf

/data/oradata/orcl/orcl/undotbs01.dbf

/data/oradata/orcl/orcl/users01.dbf

/u01/app/oracle/oradata/orcl/efmis01.dbf

run{

duplicate target database

to orcl

from active database

db_file_name_convert '/data/oradata/orcl/orcl','/data/oradata/orcl','/u01/app/oracle/oradata/orcl','/data/oradata/orcl'

spfile

set db_unique_name='orcl'

set log_file_name_convert '/data/oradata/orcl/orcl','/data/oradata/orcl'

set control_files='/data/oradata/orcl/control.ctl'

;

}

查看一下auxiliary库的物理结构：

SQL> select name from v$datafile;

NAME

--------------------------------------------------------------------------------

/data/oradata/orcl/system01.dbf

/data/oradata/orcl/sysaux01.dbf

/data/oradata/orcl/undotbs01.dbf

/data/oradata/orcl/users01.dbf

/data/oradata/orcl/efmis01.dbf

11、编辑/etc/oratab文件，添加如下条目：

orcl:/u01/app/oracle/product/11.2.0/dbhome_1:Y

注意：

db_file_name_convert 主数据库和备用数据库的数据文件转换目录对映（如果两数据库的目录结构不一样），如果有多个对映，逐一指明对映关系。