Source:  NWCONFIG.NLM

Explanation:  NWCONFIG could not write to a DOS or NetWare disk. If it is a diskette, it might be bad, write protected, or not inserted correctly. If it is a hard disk, the proper disk driver might not be loaded, the cabling might not be correct, or the drive parameters might be set incorrectly.

Action:  Make sure that there is a writable disk. Then check for the possible explanations listed above. See "Resolving Volume I/O Errors in the Traditional File Services Administration Guide. If the problem persists, contact a Novell support provider.