ORA-00245: control file backup failed; target is likely on a local file system

某数据库alert发现如下报错：

Errors in file /u01/app/oracle/diag/rdbms/vateid/vateid1/trace/vateid1_ora_84821.trc:
ORA-00245: control file backup failed; target is likely on a local file system

匹配MOS：

ORA-245: In RAC environment from 11.2 onwards Backup Or Snapshot controlfile needs to be in shared location (文档 ID 1472171.1)

解决如下：

RMAN> show all;
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/app/oracle/product/11.2.0/db_1/dbs/snapcf_vateid1.f'; # default

修改rman备份配置，将控制文件快照定向到共享磁盘组

CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+DATA/VATEID/snapcf_vateid1.f';  

只需要在RAC的一个节点上修改即可