rman备份出现ORA-19625错误

错误描述：

RMAN> backup database plus archivelog;

Starting backup at 04-DEC-15

current log archived

using channel ORA_DISK_1

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of backup plus archivelog command at 12/04/2015 16:59:43

RMAN-06059: expected archived log not found, loss of archived log compromises recoverability

ORA-19625: error identifying file /u2/oracle/fast_recovery_area/ORCL/archivelog/2015_11_01/o1_mf_1_242_c3cbn4fr_.arc

ORA-27037: unable to obtain file status

Linux-x86_64 Error: 2: No such file or directory

Additional information: 3

原因：操作系统中删除了这个归档日志，日志还没备份过，rman备份时找不到这个归档就报错了。

解决方法：进行交叉检测

RMAN> change archivelog all crosscheck；