Microsoft KB Archive/164258

= DPT SCSI Controller can Loose Requests When Reset During a Flush =

Article ID: 164258

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q164258



SYMPTOMS
Under heavy stress or when restarting during Setup, there can be disk corruption with a DPT caching SCSI host adapter.

This only happens when the write cache of the DPT adapter is enabled and hardware level RAID 5 is used.



CAUSE
When there is a reset on the SCSI bus because of a timeout or a system Reset, the Windows NT driver does not properly handle the uncompleted commands in the command queue of the DPT adapter.



RESOLUTION
To resolve this problem, contact DPT for an updated version of Dptscsi.sys or for information on updated firmware. You can contact DPT at:

http://www.dpt.com/drivers.html

NOTE: Because Web sites are regularly updated, the site address may change without notice. If this occurs, please contact the manufacturer directly.

Additional query words: DPT smartcache smartraid

Keywords: kbbug KB164258

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