直接拷贝数据文件实现Oracle数据迁移
背景介绍
由于机房服务器变更,需要将 Oracle 迁移到一台新服务器上去。
以下是环境说明:
- 原服务器地址: 192.168.1.15
- 新服务器地址: 192.168.1.18
- 操作系统:都是 CentOS 6.5
- 数据库版本: 都是 11.2.0.1
新服务器上安装和配置 Oracle
- 192.168.1.18
在新服务器(192.168.1.18)上安装了Oracle,为了保险,主机名、数据库实例名、安装目录都和原数据库保持一致。具体安装方法可参考:centos 6.5下安装oracle 11gR2与Oracle自动启动的配置
查询需要拷贝的文件
- 192.168.1.15
- 需要切换到 oracle 用户
- 使用 sqlplus 登录进 Oracle 数据库
sqlplus / as sysdba |
SQL> show parameter pfile NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ spfile string /u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileorcl.ora SQL> show parameter control NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ control_file_record_keep_time integer 7 control_files string /u01/app/oracle/oradata/orcl/control01.ctl, /u01/app/oracle/recovery_area/orcl/control02.ctl control_management_pack_access string DIAGNOSTIC+TUNING SQL> select * from v$logfile; GROUP# STATUS TYPE MEMBER IS_RECOVERY_DEST_FILE ---------- ------- ------- -------------------------------------------------------------------------------- --------------------- 3 ONLINE /u01/app/oracle/oradata/orcl/redo03.log NO 2 ONLINE /u01/app/oracle/oradata/orcl/redo02.log NO 1 ONLINE /u01/app/oracle/oradata/orcl/redo01.log NO SQL> select name from v$datafile; NAME -------------------------------------------------------------------------------- /u01/app/oracle/oradata/orcl/system01.dbf /u01/app/oracle/oradata/orcl/sysaux01.dbf /u01/app/oracle/oradata/orcl/undotbs01.dbf /u01/app/oracle/oradata/orcl/users01.dbf /u01/app/oracle/oradata/orcl/users02.dbf SQL> select name from v$tempfile; NAME -------------------------------------------------------------------------------- /u01/app/oracle/oradata/orcl/temp01.dbf |
根据以上查询结果,发现有以下文件需要拷贝
/u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileorcl.ora /u01/app/oracle/oradata/orcl/control01.ctl /u01/app/oracle/recovery_area/orcl/control02.ctl /u01/app/oracle/oradata/orcl/redo03.log /u01/app/oracle/oradata/orcl/redo02.log /u01/app/oracle/oradata/orcl/redo01.log /u01/app/oracle/oradata/orcl/system01.dbf /u01/app/oracle/oradata/orcl/sysaux01.dbf /u01/app/oracle/oradata/orcl/undotbs01.dbf /u01/app/oracle/oradata/orcl/users01.dbf /u01/app/oracle/oradata/orcl/users02.dbf /u01/app/oracle/oradata/orcl/users03.dbf /u01/app/oracle/oradata/orcl/temp01.dbf |
停掉原数据库与新数据库
- 192.168.1.15 和 192.168.1.18
- 使用 root 用户
-
service oracle stop
使用scp拷贝文件到新服务器
- 192.168.1.15
- scp 命令可以把文件复制到远程 Linux 服务器,可以参考:scp 命令
scp /u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileorcl.ora oracle@192.168.1.18:/u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileorcl.ora scp /u01/app/oracle/oradata/orcl/control01.ctl oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/control01.ctl scp /u01/app/oracle/recovery_area/orcl/control02.ctl oracle@192.168.1.18:/u01/app/oracle/recovery_area/orcl/control02.ctl scp /u01/app/oracle/oradata/orcl/redo03.log oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/redo03.log scp /u01/app/oracle/oradata/orcl/redo02.log oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/redo02.log scp /u01/app/oracle/oradata/orcl/redo01.log oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/redo01.log scp /u01/app/oracle/oradata/orcl/system01.dbf oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/system01.dbf scp /u01/app/oracle/oradata/orcl/sysaux01.dbf oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/sysaux01.dbf scp /u01/app/oracle/oradata/orcl/undotbs01.dbf oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/undotbs01.dbf scp /u01/app/oracle/oradata/orcl/users01.dbf oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/users01.dbf scp /u01/app/oracle/oradata/orcl/users02.dbf oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/users02.dbf scp /u01/app/oracle/oradata/orcl/users03.dbf oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/users03.dbf scp /u01/app/oracle/oradata/orcl/temp01.dbf oracle@192.168.1.18:/u01/app/oracle/oradata/orcl/temp01.dbf |
等待拷贝完成
尝试启动新数据库
- 192.168.1.18
- 使用 oracle 用户
dba 登录进行启动数据库
[oracle@oracle ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.1.0 Production on Thu Sep 17 09:26:11 2015 Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 6747725824 bytes Fixed Size 2213976 bytes Variable Size 5100275624 bytes Database Buffers 1610612736 bytes Redo Buffers 34623488 bytes Database mounted. Database opened. |
注意最后一句,到这里就启动成功了。这次很顺利,没有出现意外。也可以通过以下语句检测数据库的状态:
SQL> select status from v$instance; STATUS ------------ OPEN |
如果
Database mounted
成功后报错,也就是数据库最终不是 open 状态,只是 mounted 状态, 可以尝试恢复数据库。
recover database; |
完成后,再打开数据库,一般可以成功。
alter database open; |
验证两个库的数据
根据自己的实际情况进行验证, 这里不再赘述.
总结
以上就是这篇文章的全部内容了,希望本文的内容对大家学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流。