概述

最近在测试一个从winserver到Linux用rman迁移的案例，可惜试了几次都没成功，官网也说有可能触发bug,毕竟跨平台也跨版本了，所以先放弃，然后整理了下载Linux平台同个数据库版本rman迁移的实验。下面介绍下实验的过程。

环境

同个平台还是容易很多的，Linux到windows也还好，但是windows到Linux容易出bug。

In versionsprevious to 10g the only option to migrate from one platform to another wasusing export / import. With 10g, using the RMAN convert commands, you can crossbetween platforms using the 10g Cross-Platform Transportable Tablespacesoption.

一、source数据库准备

1.获取数据文件编号和路径

SQL> select file_id,file_name from dba_data_files order by file_id;

2.获取临时文件编号和路径

SQL> select file#, name from v$tempfile;

3.获取在线日志文件组和路径

SQL> select group#,member from v$logfile;

4.获取数据库字符编码

SQL> select from nls_database_parameters ;

其中:

1. Language：指定服务器消息的语言，影响提示信息是中文还是英文
2. Territory：指定服务器的日期和数字格式，
3. Charset：指定字符集。

5.获取数据库SID

二、source数据库备份

1. rman备份脚本

run {
 sql 'alter system archive log current';
 allocate channel c1 type disk;
 allocate channel c2 type disk;
 backup as compressed backupset
 tag full_backup_level0
 incremental level 0
 format '/backup/oradata/level0_%T_%t_s%s_p%p.bak' database;
 sql 'alter system archive log current';
 backup as compressed backupset format '/backup/arch/archlog_%T_t%t_s%s_p%p.bak' archivelog all delete input;
 release channel c1;
 release channel c2;
 allocate channel d1 type disk;
 backup
 format '/backup/control/controlfile_%T_s%s_p%p.bak'
 current controlfile;
 crosscheck backup;
 crosscheck copy;
 delete noprompt expired backup;
 delete noprompt obsolete;
 release channel d1;
}

2.备份文件