当主备的目录结构不同时，需要设定db_file_name_convert进行路径转换，并设定standby_file_management=auto；但在某些情况下（例如BUG），仍会发生无法转换的状况，此时就需要进行手工同步。

1. 关闭备库MRP

SQL> alter database recover managed standby database cancel;

2. 确认从主库传送过来的新数据文件名

SQL> select name from v$datafile;

NAME
--------------------------------------------------
/u02/youngyang/oradata01/system01.dbf
/u02/youngyang/oradata02/undotbs01.dbf
/u02/youngyang/oradata01/sysaux01.dbf
/u02/youngyang/oradata01/users01.dbf
/opt/oracle/product/10.2.0/db_1/dbs/UNNAMED00005

3. 更改备库参数standby_file_managemen为manual

SQL> alter system set standby_file_management=manual scope=both;

System altered.

4. 依据主库路径，创建备库新数据文件

SQL> alter database create datafile '/opt/oracle/product/10.2.0/db_1/dbs/UNNAMED00005' as '/u02/youngyang/oradata01/users02.dbf';

Database altered.

5. 更改备库参数standby_file_managemen为auto

SQL> alter system set standby_file_management=auto scope=both;

System altered.

6. 启动备库MRP

SQL> alter database recover managed standby database disconnect from session;

Database altered.