Rman由Windows迁移Oracle数据库至Linux

1.全库备份

run {
allocate channel ch1 type disk maxpiecesize=50g;
backup format 'E:\backup1\datafile\full_%U' tag 'fullbak_' full database;
sql 'alter system archive log current';
backup format 'E:\backup1\datafile\arclog_%U' archivelog all delete all input;
backup format 'E:\backup1\controlfile\cntrl_%U' current controlfile;
release channel  ch1;
}

2.零级增量备份

run {
allocate channel ch1 type disk maxpiecesize=50g;
backup incremental level=0 format 'E:\backup1\datafile\incr0_%U' tag 'fullbak_level_0' database;
sql 'alter system archive log current';
backup format 'E:\backup1\datafile\arclog_%U' archivelog all delete all input;
backup format 'E:\backup1\controlfile\cntrl_%U' current controlfile;
release channel  ch1;
}

3.一级增量备份

run {
allocate channel ch1 type disk maxpiecesize=50g;
backup incremental level=1 format 'E:\backup1\datafile\incr0_%U' tag 'incrbak_level_1' database;
sql 'alter system archive log current';
backup format 'E:\backup1\datafile\arclog_%U'  archivelog all delete all input;
backup format 'E:\backup1\controlfile\cntrl_%U' current controlfile;
release channel  ch1;
}

恢复示例：
在目标服务器上用rman连接至数据库

export ORACLE_SID=xx
rman target /

恢复参数文件(可用这个方法恢复参数文件)

RMAN> restore spfile to pfile "/app/oracle/11.2.0/dbs/pfileorcl.ora" from "备份的参数文件的位置";

4.将pfile.ora和RMAN备份的数据文件和控制文件传到linux上.
5.修改传送过去的pfile.ora文件，将一系列目录改为linux上的对应目录,注意SGA和PGA的修改

startup nomount pfile=‘备份的参数文件位置’

假如报错,根据报错排查对应错误
6. 恢复控制文件并且mount数据库

rman target /
RMAN>restore controlfile from '备份的控制文件存放位置';
RMAN>sql 'alter database mount';

7.清理RMAN记录的catalog的失效记录

RMAN>crosscheck backup;
RMAN>delete expired backup;

8.将RMAN备份文件加入到catalog

catalog backuppiece '/tmp/FULL_01RMSH1N_1_1','/tmp/FULL_02RMSH3P_1_1';

有几个加几个,或者假如备份文件很多,那么用下面的命令

catalog start with '备份集存放的位置';

注意假如是直接指定了一个目录,那么最后必须接/表示这是一个目录,否则会被认为是一个前缀
9.开始在RMAN中从catalog中恢复数据库,并且set newname来指定新的路径,switch来将新的路径写到控制文件

run{
set newname for database to '/u01/app/oracle/oradata/orcl/datafile/%N';
restore database;
switch database to copy;
switch datafile all;
recover database;
}

10.开启数据库,使用resetlogs upgrade参数来重建redo文件

SQL> alter database open resetlogs upgrade;

顺便生成一下spfile

SQL> create spfile from pfile='备份的参数文件存放位置';

重新编译一下无效对象

@?/rdbms/admin/utlrp.sql;