因手工删除归档日志，在使用RMAN进行归档日志备份的时候报如下错误：
RMAN> backup archivelog all format '/orabak/rman/bidbbak/%t_%s_%r.arch' delete all input;
Starting backup at 04-OCT-08
current log archived
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=132 devtype=DISK
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 10/04/2008 12:22:38
RMAN-06059: expected archived log not found, lost of archived log compromises recoverability
ORA-19625: error identifying file /u01/app/oracle/flash_recovery_area/BIDB/archivelog/2008_10_01/o1_mf_1_34_4g600sxl_.arc
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
解决方法：
$ rman target / nocatalog
RMAN> crosscheck archivelog all;
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