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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