| ERROR | could not read file header for datafile string error reason string |
| CAUSE | The specified datafile 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 datafile 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. |