DEC TLZ07 DAT Drive Not Recognized After Service Pack 5

 Last reviewed: April 10, 1997
Article ID: Q157678
The information in this article applies to:
  • Microsoft Windows NT Server versions 3.51

SYMPTOMS

After installing Service Pack 5 on your Alpha NT 3.51 server, you may not be able to access DEC TLZ07 4MM DAT Tape Drive and may receive the following errors in the event log: 

   Event ID: 7026
     Source: Service Control Manager
     Description: The following boot-start or system-start driver(s)
     failed to load:  4mmdat.sys

   Event ID: 7000
     Source: Service Control Manager
     Description: The 4mmdat service failed to start due to the following
     error: the system cannot find the device specified
CAUSE

The 4mmdat.sys driver that is replaced by Service Pack 5 is incompatible with these drives.

RESOLUTION

Connect to Dec's World Wide Web site at 

   http://www.windows.digital.com/support/drivers/drivers.htp.
Download the DECTAPE file containing all of the drivers. The original file on the computer will be 4mmdat.sys, dated 05-26-95 36,752K. The file to replace it with in the %systemroot%\system32\drivers subdirectory will be the one you just downloaded named 4mmdat.sys dated 11-02-94 50,624K.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 3.51. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: prodnt
Keywords : kbhw kbsetup ntdriver nthw
Version : 3.51
Platform : WinNT

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Last reviewed: April 10, 1997
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