数据库中手工rm删除归档日志对备份归档日志的影响有哪些

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手工rm删除归档日志后，备份归档日志的时候会报错找不到删除的归档日志，crosscheck arcHivelog all和delete expired archivelog all后，备份归档日志不再报错

使用rman的delete命令删除归档日志后，备份归档日志不会报错

[oracle@oatest 2018_07_26]$ ll

总用量 12720

-rw-r-----. 1 oracle dba 12994048 7月  26 11:27 o1_mf_1_494_folhwg5h_.arc

-rw-r-----. 1 oracle dba     1536 7月  26 11:27 o1_mf_1_495_folhwhdx_.arc

-rw-r-----. 1 oracle dba     2560 7月  26 11:27 o1_mf_1_496_folhwkfj_.arc

-rw-r-----. 1 oracle dba     1024 7月  26 11:27 o1_mf_1_497_folhwlbh_.arc

-rw-r-----. 1 oracle dba     1024 7月  26 11:27 o1_mf_1_498_folhwq9c_.arc

-rw-r-----. 1 oracle dba     1024 7月  26 11:27 o1_mf_1_499_folhwr3b_.arc

-rw-r-----. 1 oracle dba     1024 7月  26 11:27 o1_mf_1_500_folhwx96_.arc

-rw-r-----. 1 oracle dba     1024 7月  26 11:27 o1_mf_1_501_folhwy86_.arc

[oracle@oatest 2018_07_26]$ rm -f o1_mf_1_496_folhwkfj_.arc o1_mf_1_497_folhwlbh_.arc o1_mf_1_498_folhwq9c_.arc

RMAN>  backup archivelog all fORMat '/home/oracle/archivelog%U' delete input;

Starting backup at 26-JUL-18

current log archived

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=224 device type=DISK

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

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

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

RMAN-03002: failure of backup command at 07/26/2018 11:31:23

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

ORA-19625: error identifying file /u01/app/oracle/fast_recovery_area/PROD7/archivelog/2018_07_26/o1_mf_1_496_folhwkfj_.arc

ORA-27037: unable to obtain file status

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

Additional information: 3

RMAN> crosscheck archivelog all;

RMAN> delete expired archivelog all;

...

Do you really want to delete the above objects (enter YES or NO)? yes

deleted archived log

archived log file name=/u01/app/oracle/fast_recovery_area/PROD7/archivelog/2018_07_26/o1_mf_1_496_folhwkfj_.arc RECID=3 STAMP=982495633

deleted archived log

archived log file name=/u01/app/oracle/fast_recovery_area/PROD7/archivelog/2018_07_26/o1_mf_1_497_folhwlbh_.arc RECID=4 STAMP=982495634

deleted archived log

archived log file name=/u01/app/oracle/fast_recovery_area/PROD7/archivelog/2018_07_26/o1_mf_1_498_folhwq9c_.arc RECID=5 STAMP=982495639

Deleted 3 EXPIRED objects

RMAN> delete archivelog sequence 500;

RMAN> backup archivelog all format '/home/oracle/archivelog%U' delete input;

Starting backup at 26-JUL-18

current log archived

using channel ORA_DISK_1

channel ORA_DISK_1: starting archived log backup set

channel ORA_DISK_1: specifying archived log(s) in backup set

input archived log thread=1 sequence=494 RECID=1 STAMP=982495630

input archived log thread=1 sequence=495 RECID=2 STAMP=982495631

input archived log thread=1 sequence=499 RECID=6 STAMP=982495640

input archived log thread=1 sequence=501 RECID=8 STAMP=982495646

input archived log thread=1 sequence=502 RECID=9 STAMP=982495881

input archived log thread=1 sequence=503 RECID=10 STAMP=982495953

input archived log thread=1 sequence=504 RECID=11 STAMP=982513112

496、497、498、500这几个sequence的归档日志都没有备份进去

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