1、在给客户系统巡检时通过rman维护日志发现有rman维护日志报错：
rman-06207: warning: 3 objects could not be deleted for disk channel(s) due
rman-06208: to mismatched status. use crosscheck command to fix status
rman-06210: list of mismatched objects
rman-06211: ==========================
rman-06212: object type filename/handle
rman-06213: --------------- ---------------------------------------------------
rman-06214: datafile copy d:\oradata\system01.dbf
rman-06214: datafile copy d:\app\administrator\product\11.2.0\dbhome_1\database\sncfdb.ora
rman-06214: datafile copy /u01/app/oracle/product/11.2.0/db_1/dbs/snapcf_db1.f
2、进入rman视图模式，进行交叉校验备份信息，未发现异常，如下：
[root@db1 rman]# su - oracle [oracle@db1 ~]$ rman target / recovery manager: release 11.2.0.4.0 - production on tue nov 1 13:38:38 2022 copyright (c) 1982, 2011, oracle and/or its affiliates. all rights reserved. cconnected to target database: hisdb (dbid=1732211111) rman> crosscheck backup; backup piece handle=/dbbak/rman/ctl_db_20221031_16719_1 recid=14479 stamp=1119556333 crosschecked backup piece: found to be 'available' backup piece handle=/dbbak/rman/db_ag1bm4nl_1_1.spfile recid=14480 stamp=1119556334 crosschecked 2 objects
3、根据提示路径发现系统近期是从windows环境迁移至linux环境的，在迁移之前没有对控制文件记录的信息进行维护导致，通过crosscheck copy命令进行校验检查，发现存在检查失败的内容，如下：
rman> crosscheck copy; validation failed for datafile copy datafile copy file name=d:\oradata\system01.dbf recid=1 stamp=1108073097 validation failed for control file copy control file copy file name=/u01/app/oracle/product/11.2.0/db_1/dbs/snapcf_db1.f recid=18 stamp=1108406674 validation failed for control file copy control file copy file name=d:\app\administrator\product\11.2.0\dbhome_1\database\sncfdb.ora recid=10 stamp=1108209845 crosschecked 3 objects
4、使用report obsolete命令报告过时的对象，如下：
rman> report obsolete; rman retention policy will be applied to the command rman retention policy is set to redundancy 1 report of obsolete backups and copies type key completion time filename/handle -------------------- ------ ------------------ -------------------- datafile copy 1 22-jun-2022 22:04:57 d:\oradata\system01.dbf control file copy 10 24-jun-2022 12:04:05 d:\app\administrator\product\11.2.0\dbhome_1\database\sncfdb.ora control file copy 18 26-jun-2022 18:44:34 /u01/app/oracle/product/11.2.0/db_1/dbs/snapcf_hisdb1.f
5、使用delete obsolete命令删除存在问题的对象，如下：
rman> delete obsolete; rman retention policy will be applied to the command rman retention policy is set to redundancy 1 using channel ora_disk_1 using channel ora_disk_2 using channel ora_disk_3 using channel ora_disk_4 deleting the following obsolete backups and copies: type key completion time filename/handle -------------------- ------ ------------------ -------------------- datafile copy 1 22-jun-2022 22:04:57 d:\oradata\system01.dbf control file copy 10 24-jun-2022 12:04:05 d:\app\administrator\product\11.2.0\dbhome_1\database\sncfdb.ora control file copy 18 26-jun-2022 18:44:34 /u01/app/oracle/product/11.2.0/db_1/dbs/snapcf_db1.f do you really want to delete the above objects (enter yes or no)? yes deleted datafile copy datafile copy file name=d:\oradata\system01.dbf recid=1 stamp=1108073097 deleted control file copy control file copy file name=d:\app\administrator\product\11.2.0\dbhome_1\database\sncfdb.ora recid=10 stamp=1108209845
6、至此，rman在维护数据库的时候不在出现rman-06207&rman-06214报错。
总结
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