日志信息如下:
 
 RMAN-00571: =========================================================== 
 
RMAN-00569: =============== 
 
ERROR MESSAGE STACK FOLLOWS =============== 
 
RMAN-00571: ===========================================================
 
RMAN-03002: failure of backup command at 02/15/2011 15:57:56 
 
RMAN-06059: expected archived log not found, lost of archived log compromises recoverability
 
 ORA-19625: error identifying file /u01/app/oracle/archive/2_3494_656067797.dbf 
 
ORA-27037: unable to obtain file status IBM AIX RISC System/6000 Error: 2: A file or directory in the path name does not exist. Additional information:
 
运行如下命令: RMAN> change archivelog all crosscheck; 解决。