ORA-00227
        corrupt block detected in control file: (block string, # blocks string)
        
        
        Cause
        A block header corruption or checksum error was detected on reading the control file.
        Action
        Use the CREATE CONTROLFILE or RECOVER DATABASE USING BACKUP CONTROLFILE command.
        
     
    
    
        ORA-00227
        corrupt block detected in control file: (block string, # blocks string)
        
        
        Cause
        A block header corruption or checksum error was detected on reading the control file.
        Action
        Use the CREATE CONTROLFILE or RECOVER DATABASE USING BACKUP CONTROLFILE command.
        
     
    
    
        ORA-00227
        corrupt block detected in control file: (block string, # blocks string)
        
        
        Cause
        A block header corruption or checksum error was detected on reading the control file.
        Action
        Use the CREATE CONTROLFILE or RECOVER DATABASE USING BACKUP CONTROLFILE command.