数据迁移：DataGuard配置

本次快速搭建单实例物理DataGuard，为解决某些同事担心“那如果我在primary里面使用提交的事务操作时按照rowid去检索数据，到备库执行的和主库操作不一致”

数据库软件安装过程不再赘述。

1: 检查主库否为 force logging .

select inst_id , force_logging from gv$database;
alter database force logging;

2:备库创建数据库实例

oradim -new -sid tjcshow -startmode a

3:配置主/备库tnsnames,listener

增加主库TNSNAMES节点：

TJCSHOW1 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.111.130)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = tjcshow)
    )
  )


TJCSHOW2 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.111.131)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = tjcshow)
    )
  )

将主库listener/SQLNET/TNSNAMES拷贝到备库待用

修改监听：

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
      (PROGRAM = extproc)
    )
    (SID_DESC =
    (GLOBAL_DBNAME = tjcshow)
    (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
    (SID_NAME = tjcshow)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = DKD-O13022802)(PORT = 1521))
    )
  )

4：主库生成pfile,拷贝到备库作为基础参数文件,修改主/备库pfile

---PRIMAY
*.log_archive_config=''
*.log_archive_dest_1='LOCATION=C:\oracle\product\10.2.0\archivelog VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=tjcshow'
*.log_archive_dest_2='service=tjcshow2 lgwr async  VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=tjcshow'
*.log_archive_dest_state_1=enable
*.log_archive_dest_state_2=enable
*.LOG_ARCHIVE_FORMAT='%t_%s_%r.arc'
*.log_archive_max_processes=1
*.fal_client='tjcshow1'
*.fal_server='tjcshow2'
*.DB_FILE_NAME_CONVERT='C:\oracle\product\10.2.0\oradata\tjcshow','C:\oracle\product\10.2.0\oradata\tjcshow' 
*.LOG_FILE_NAME_CONVERT='C:\oracle\product\10.2.0\oradata\tjcshow','C:\oracle\product\10.2.0\oradata\tjcshow'
*.standby_file_management=auto

---STSNDBY

*.log_archive_config=''
*.log_archive_dest_1='LOCATION=C:\oracle\product\10.2.0\archivelog VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=tjcshow'
*.log_archive_dest_2='service=tjcshow1 lgwr async  VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=tjcshow'
*.log_archive_dest_state_1=enable
*.log_archive_dest_state_2=enable
*.LOG_ARCHIVE_FORMAT='%t_%s_%r.arc'
*.log_archive_max_processes=1
*.fal_client='tjcshow2'
*.fal_server='tjcshow1'
*.DB_FILE_NAME_CONVERT='C:\oracle\product\10.2.0\oradata\tjcshow','C:\oracle\product\10.2.0\oradata\tjcshow' 
*.LOG_FILE_NAME_CONVERT='C:\oracle\product\10.2.0\oradata\tjcshow','C:\oracle\product\10.2.0\oradata\tjcshow'
*.standby_file_management=auto

5：节点联通性测试，节点1 tnsping tjcshow1 tnsping tjcshow2 节点2 tnsping tjcshow1 tnsping tjcshow2

startup nomount pfile=c:\standby.ora;

c:\oracle\product\10.2.0\db_1\BIN>TNSPING.EXE tjcshow1

TNS Ping Utility for 64-bit Windows: Version 10.2.0.4.0 - Production on 13-MAR-2
013 09:23:20

Copyright (c) 1997,  2007, Oracle.  All rights reserved.

Used parameter files:
C:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora


Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.1
11.130)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = tjcsh
ow)))
OK (0 msec)

c:\oracle\product\10.2.0\db_1\BIN>TNSPING.EXE tjcshow2

TNS Ping Utility for 64-bit Windows: Version 10.2.0.4.0 - Production on 13-MAR-2
013 09:23:21

Copyright (c) 1997,  2007, Oracle.  All rights reserved.

Used parameter files:
C:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora


Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.100.1
11.131)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = tjcsh
ow)))
OK (0 msec)

6:RMAN 备份主库

sql 'alter system archive log current' ;
backup as compressed backupset full format='c:\backupset-%d_%s.bak' database include current controlfile for standby plus archivelog ;

7：拷贝文件，还原备库

Set oracle_sid=tjcshow
Startup pfile=’c:\standby.ora’ nomount;
rman target  sys/oracle@tjcshow1  auxiliary sys/oracle@tjcshow2 
duplicate target database for standby dorecover nofilenamecheck;

8:添加Standby redo log 重做日志组配置

( 01) 主库添加Standby Redo Log
ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 ('C:\oracle\product\10.2.0\oradata\tjcsho\redo004') SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 ('C:\oracle\product\10.2.0\oradata\tjcsho\redo005') SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 ('C:\oracle\product\10.2.0\oradata\tjcsho\redo006') SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 7 ('C:\oracle\product\10.2.0\oradata\tjcsho\redo007') SIZE 50M;

( 02) 备库添加Standby Redo Log
ALTER DATABASE ADD STANDBY LOGFILE GROUP 4 ('C:\oracle\product\10.2.0\oradata\tjcsho\redo004') SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 5 ('C:\oracle\product\10.2.0\oradata\tjcsho\redo005') SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 6 ('C:\oracle\product\10.2.0\oradata\tjcsho\redo006') SIZE 50M;
ALTER DATABASE ADD STANDBY LOGFILE GROUP 7 ('C:\oracle\product\10.2.0\oradata\tjcsho\redo007') SIZE 50M;

9:启动到管理模式

shutdown immediate
startup nomount
alter database mount standby database
alter database recover managed standby database disconnect from session;

10:测试

@primary

--查看DG配置是否正确，主/备库查询：

select status,destination, error from v$archive_dest; 
VALID	C:\oracle\product\10.2.0\archivelog	
VALID	tjcshow2	
INACTIVE		
INACTIVE		
INACTIVE		
INACTIVE		
INACTIVE		
INACTIVE		
INACTIVE		
INACTIVE

--创建表空间，测试表进行测试

create tablespace rowidtbs datafile 'C:\oracle\product\10.2.0\oradata\tjcshow\rowidtbs01.dbf' size 100M;
create table rowidt (id int,name varchar(20)) tablespace rowidtbs;

--插入1000条数据

begin
for x  in 1..1000 loop
insert into rowidt values(x,'oracledg');
end loop;
end;
/

--强制数据库日志切换

alter system switch logfile;

--将备库从恢复模式置于只读模式：

alter database recover managed standby database cancel;
alter database open ;

--查询备库数据

select rowid,id,name from test
AAAMpBAABAAAOvaAAA	1	oracle    
AAAMpBAABAAAOvaAAB	2	oracle    
AAAMpBAABAAAOvaAAC	3	oracle    
AAAMpBAABAAAOvaAAD	4	oracle    
AAAMpBAABAAAOvaAAE	5	oracle    
aaampbaabaaaovaaaf	6	oracle    
aaampbaabaaaovaaag	7	oracle    
............................

1000条测试数据全部同步到备库，且ROWID没有发生变化。

PS：摘录 Data Guard Concepts and Administration

Physical standby database Provides a physically identical copy of the primary database, with on disk database structures that are identical to the primary database on a block-for-block basis. The database schema, including indexes, are the same. A physical standby database is kept synchronized with the primary database, through Redo Apply, which recovers the redo data received from the primary database and applies the redo to the physical standby database.

所以主库到备库的后的ROWID不会发生变化，所以同事的担心没有必要。做这件事情的同时想起exp/imp，expdp/impdp做备份还原的时候会修改rowid的值，所以如果所做的备份库的应用中使用了ROWID，千万不要使用exp/imp，expdp/impd做数据迁移。

数据迁移：DataGuard配置

猜你喜欢