RMAN-06169
        could not read file header for datafile string error reason string
        
        
        Cause
        The specified data file could not be accessed.  The reason codes are: 1  - file name is MISSINGxx in the control file 2  - file is offline 3  - file is not verified 4  - DBWR could not find the file 5  - unable to open file 6  - I/O error during read 7  - file header is corrupt 8  - file is not a data file 9  - file does not belong to this database 10 - file number is incorrect 12 - wrong file version 15 - control file is not current
        Action
        If the error can be corrected, do so and retry the operation. The SKIP option can be used to ignore this error during a backup.
        
     
    
    
        RMAN-06169
        could not read file header for datafile string error reason string
        
        
        Cause
        The specified data file could not be accessed.  The reason codes are: 1  - file name is MISSINGxx in the control file 2  - file is offline 3  - file is not verified 4  - DBWR could not find the file 5  - unable to open file 6  - I/O error during read 7  - file header is corrupt 8  - file is not a data file 9  - file does not belong to this database 10 - file number is incorrect 12 - wrong file version 15 - control file is not current
        Action
        If the error can be corrected, do so and retry the operation. The SKIP option can be used to ignore this error during a backup.
        
     
    
    
        RMAN-06169
        could not read file header for datafile string error reason string
        
        
        Cause
        The specified data file could not be accessed.  The reason codes are: 1  - file name is MISSINGxx in the control file 2  - file is offline 3  - file is not verified 4  - DBWR could not find the file 5  - unable to open file 6  - I/O error during read 7  - file header is corrupt 8  - file is not a data file 9  - file does not belong to this database 10 - file number is incorrect 12 - wrong file version 15 - control file is not current
        Action
        If the error can be corrected, do so and retry the operation. The SKIP option can be used to ignore this error during a backup.