A Tape Backup Medium Changer may not detect properly in the Device Manager

Article translations Article translations
Close Close
Article ID: 967736 - View products that this article applies to.
Expand all | Collapse all
Source: Microsoft Support

RAPID PUBLISHING

RAPID PUBLISHING ARTICLES PROVIDE INFORMATION DIRECTLY FROM WITHIN THE MICROSOFT SUPPORT ORGANIZATION. THE INFORMATION CONTAINED HEREIN IS CREATED IN RESPONSE TO EMERGING OR UNIQUE TOPICS, OR IS INTENDED SUPPLEMENT OTHER KNOWLEDGE BASE INFORMATION.

Action

When adding a Medium Changer Tape Backup device to a Windows Server 2003 or Server 2008 system, the system's device manager may not show all components of the device: the tape drive(s) or the changer (robotics). 

Result

Portions of the device are not visible in the device manager.  As such, the Removable Storage service based applications, including Tape Backup software, may not be able to fully utilize the Medium Changer. 

Cause



The HBA (host bus adapter) the Medium Changer is connected to is using Storport compatible drivers and the Medium Changer uses a non_hierarchical scsi REPORT_LUNS structure.  When a seemingly valid REPORT_LUNS structure is returned from the target device, it will be used to determine the LUNs available to the operating system. If the target uses a non-hierarchical REPORT_LUNS structure, storport will still use it to identify the LUNs, even though it does not understand the format. This can result in LUN 0 (the tape drive) being correctly identified , but not LUN 1 (the robotic changer device), so it does not show up in device manager or RSM (Removable Storage Manager).

This can be a PCI-E SCSI host bus adapter, or other slot  or interconnect technology.  For example: a Fibre-Channel HBA in a PCI slot. 

 

 

 

 

Resolution

Install Scsiport drivers for the HBA rather then Storport. 

DISCLAIMER

MICROSOFT AND/OR ITS SUPPLIERS MAKE NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY, RELIABILITY OR ACCURACY OF THE INFORMATION CONTAINED IN THE DOCUMENTS AND RELATED GRAPHICS PUBLISHED ON THIS WEBSITE (THE “MATERIALS”) FOR ANY PURPOSE. THE MATERIALS MAY INCLUDE TECHNICAL INACCURACIES OR TYPOGRAPHICAL ERRORS AND MAY BE REVISED AT ANY TIME WITHOUT NOTICE.

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, MICROSOFT AND/OR ITS SUPPLIERS DISCLAIM AND EXCLUDE ALL REPRESENTATIONS, WARRANTIES, AND CONDITIONS WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO REPRESENTATIONS, WARRANTIES, OR CONDITIONS OF TITLE, NON INFRINGEMENT, SATISFACTORY CONDITION OR QUALITY, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE MATERIALS.

Properties

Article ID: 967736 - Last Review: February 10, 2009 - Revision: 1.0
APPLIES TO
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Small Business Server 2008 Standard
  • Windows Small Business Server 2008 Premium
  • Windows Server 2008 Standard
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Enterprise without Hyper-V
  • Microsoft Windows Server 2003 R2 Enterprise Edition KN
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003 Service Pack 1
  • Microsoft Windows Server 2003 Service Pack 2
  • Microsoft Windows Server 2003 R2 Standard Edition KN
Keywords: 
kbnomt kbrapidpub KB967736

Give Feedback

 

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com