Microsoft KB Archive/211214

= Problems Backing Up to HP C1533 DAT Tape Drive =

Article ID: 211214

Article Last Modified on 2/20/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q211214



SYMPTOMS
When you back up files to a Hewlett-Packard (HP) C1533 DAT drive connected to an Adaptec 2940UW controller, the backup process may not finish. The following event may appear in Event Viewer repeatedly:

The device, \Device\Scsi\aic78xx1, did not respond within the timeout period.

Event #9 Source is "Error"



CAUSE
The HP C1533 DAT drive requires 5-MHz throughput. The Adaptec 2940UW controller provides 10-MHz or 20-MHz through put.

Note that improper SCSI termination may also cause this behavior



RESOLUTION
Connect the tape drive to a controller that provides 5-MHz throughput.

Keywords: kbhardware kbprb KB211214

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