We are getting following error while backup on RMAN.
RMAN> list backup summary;
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-03002: failure of list command at 09/29/2011 06:32:18
ORA-00204: error in reading (block 685, # blocks 1) of control fileORA-00202: control file: '/data/oracle/****/u01/****/controlfile/o1_mf_6sm641l8_.ctl'
ORA-27072: File I/O error
SVR4 Error: 81: File descriptor in bad state
Additional information: 4
Additional information: 685
We have cloned other database using this with "active database" option and after the backups are failing.
Database has multiplexed control files and at the moment DB is running fine. I am wondering if I restart the database with only one control file it may corrupt.
Please suggest, I have already taken backup of control file to trace.