DOCUMENT:Q247060 10-AUG-2001 [winnt] TITLE :Error Message in Ntbackup.exe When Starting to Read Tapes PRODUCT :Microsoft Windows NT PROD/VER:winnt:4.0 OPER/SYS: KEYWORDS:kberrmsg kbtool ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you start Backup (Ntbackup.exe), it attempts to read the tapes. If the format of a tape is not compatible with Ntbackup.exe, an access violation that generates a Dr. Watson error message may occur. CAUSE ===== This behavior can occur if a tape contains an incompatible data format. Not all formats cause this behavior; some formats may generate an "unrecognized tape" error message instead. RESOLUTION ========== To prevent this issue from occurring, use another tape without any incompatible backup sets or formats. Also, do not mix backup sets from different backup software. MORE INFORMATION ================ All tapes that are used to create a backup with Ntbackup.exe use a standard backup format called Microsoft Tape Format (MTF). MTF is also used in the Microsoft SQL Server 7.0 backup program. This feature enables SQL Server backups to coexist on the same media as backups that are not SQL Server backups (foreign backup sets), provided that the backups use MTF. For example, both SQL Server 7.0 backups and Microsoft Windows NT backups can exist on the same media. This is not the case for the SQL Server 6.5 backup program, which uses a different format. Additional query words: ====================================================================== Keywords : kberrmsg kbtool Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : winnt:4.0 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.