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

ORACLE11G RAC
alert报错如下：
Errors in file /u01/app/oracle/diag/rdbms/dljyzs/dljyzs1/trace/dljyzs1_ora_81734.trc:
ORA-00245: control file backup failed; target is likely on a local file system

备份日志报错如下：
ORA-00245: control file backup failed; target is likely on a local file system

RMAN-08132: WARNING: cannot update recovery area reclaimable file list

报错原因是：快照控制文件不在共享存储上。
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/app/oracle/product/11.2.0/db_1/dbs/snapcf_dljyzs1.f'; # default

修改快照控制文件位置到共享存储（ASM）
RMAN> CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+DATA/dljyzs/snapcf_dljyzs1.f';

new RMAN configuration parameters:
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+DATA/dljyzs/snapcf_dljyzs1.f';
new RMAN configuration parameters are successfully stored