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# Windows NT SCSI Drivers Don't Recognize Device Types Above 7Fh

Article ID: 103151

Article Last Modified on 10/31/2006

APPLIES TO

- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1

This article was previously published under Q103151

## SYMPTOMS

The Windows NT SCSI port and class drivers do not currently support any SCSI device types above 7Fh. This may cause problems with current and future SCSI devices that have device types greater than 7Fh.

## STATUS

Microsoft has confirmed this to be a problem in Windows NT and Windows NT Advanced Server version 3.1. This problem was corrected in the latest U.S. Service Pack for Windows NT and Windows NT Advanced Server version 3.1. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

## MORE INFORMATION

SCSI device types are used in certain SCSI commands, such as Inquiry, to determine what type of SCSI device is connected to the host controller.
Below is a list of common SCSI device types:

00h = Direct Access
01h = Sequential Access
02h = Printer
03h = Processor
04h = Write Once
05h = CD-ROM
06h = Scanner
07h = Optical Memory
08h = Medium Changer
09h = Communications

Additional query words: prodnt

Keywords: kbhardware KB103151