数据库版本(exadata x2 1/4)

SQL> select *from v$version;

BANNER
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Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE    11.2.0.2.0      Production
TNS for Linux: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production

使用delete expired backup报ORA-19606错

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of delete command on ORA_DISK_4 channel at 12/05/2012 13:35:07
ORA-19606: Cannot copy or restore to snapshot control file

报错原因

The snapshot controlfile is cataloged as a controlfile coy and is now obsolete. 
RMAN cannot delete this file as it is used by rman. 

处理方法[ID 1215493.1]

Since RMAN will continue to use that file as it's snapshot copy, 
you must change the location/name that RMAN is using before it will allow you to delete the file. 

1. Set new name (or location) for RMAN to use for snapshot controlfile:

CONFIGURE SNAPSHOT CONTROLFILE NAME TO 'C:\APP\ADMINISTRATOR\PRODUCT\11.2.0\DBHOME_1\DATABASE\SNCF_temp.ORA';

2. Remove the snapshot controlfile from the RMAN information as a controlfile copy. 

delete 'C:\APP\ADMINISTRATOR\PRODUCT\11.2.0\DBHOME_1\DATABASE\SNCFAXMPRD.ORA' on operating system. 

3. Crosscheck and delete the file from RMAN:

crosscheck controlfilecopy 'C:\APP\ADMINISTRATOR\PRODUCT\11.2.0\DBHOME_1\DATABASE\SNCFAXMPRD.ORA';
delete expired controlfilecopy 'C:\APP\ADMINISTRATOR\PRODUCT\11.2.0\DBHOME_1\DATABASE\SNCFAXMPRD.ORA';

4. Set the snapshot controlfile name (or location) to original:

CONFIGURE SNAPSHOT CONTROLFILE NAME TO 'C:\APP\ADMINISTRATOR\PRODUCT\11.2.0\DBHOME_1\DATABASE\SNCFAXMPRD.ORA';
5. Or to set the snapshot controlfile name back to default value:
CONFIGURE SNAPSHOT CONTROLFILE NAME clear;

处理方法就是把SNAPSHOT CONTROLFILE的配置路径改变,然后删除控制文件快照