oracle使用backup as copy方式迁移数据文件
1 基础环境
--确认数据文件路径
set line 200
col name for a75
select file#,name from v$datafile
FILE# NAME
---------- ---------------------------------------------------------------------------
1 /u01/app/oracle/oradata/ORCL/system01.dbf
3 /u01/app/oracle/oradata/ORCL/sysaux01.dbf
4 /u01/app/oracle/oradata/ORCL/undotbs01.dbf
5 /u01/app/oracle/oradata/ORCL/test.dbf
7 /u01/app/oracle/oradata/ORCL/users01.dbf
--目标路径（确认目标路径的所属）
/oradata/ORCL
[root@test ~]# ll /oradata/
total 0
drwxrwxr-x 2 oracle oinstall 6 Jul 25 02:37 ORCL
2 重新起库到mount状态
SQL> shu immediate SQL> startup mount;
3 backup as copy 方式改路径
rman target / backup as copy datafile 1 format '/oradata/ORCL/system01.dbf'; backup as copy datafile 3 format '/oradata/ORCL/sysaux01.dbf'; backup as copy datafile 4 format '/oradata/ORCL/undotbs01.dbf'; backup as copy datafile 5 format '/oradata/ORCL/test.dbf'; backup as copy datafile 7 format '/oradata/ORCL/users01.dbf'; switch datafile 1 to copy; switch datafile 3 to copy; switch datafile 4 to copy; switch datafile 5 to copy; switch datafile 7 to copy;
4 确认文件路径是否是目标路径
SQL> set line 200
SQL> col name for a75
SQL> select file#,name from v$datafile;
FILE# NAME
---------- ---------------------------------------------------------------------------
1 /oradata/ORCL/system01.dbf
3 /oradata/ORCL/sysaux01.dbf
4 /oradata/ORCL/undotbs01.dbf
5 /oradata/ORCL/test.dbf
7 /oradata/ORCL/users01.dbf
[oracle@test ~]$ cd /oradata/ORCL/
[oracle@test ORCL]$ ll
total 3986472
-rw-r----- 1 oracle oinstall 618668032 Jul 25 02:47 sysaux01.dbf
-rw-r----- 1 oracle oinstall 954212352 Jul 25 02:47 system01.dbf
-rw-r----- 1 oracle oinstall 2147491840 Jul 25 02:47 test.dbf
-rw-r----- 1 oracle oinstall 356524032 Jul 25 02:47 undotbs01.dbf
-rw-r----- 1 oracle oinstall 5251072 Jul 25 02:47 users01.dbf
5 起库到open状态
alter database open; select open_mode,database_role from v$database;
6 检查alert日志，如无报错，则通知业务起应用
7 如果有dg库，请注意修改备库上的convert参数
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