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Fiber System Loses SCSI Reservation After Multiple Restarts

This article was previously published under Q195636
This article has been archived. It is offered "as is" and will no longer be updated.
A potential problem exists after multiple reboots of a clustered systemusing a fiber channel array as the shared storage system. After multiplerestarts, the SCSI reservations may lose a drive array because of repeatedSCSI resets.
This problem is because a reservation conflict occurs in the Disk.sysdriver.
A new file entry solves the problem by enumerating the followinginformation in Disk.sys STATUS_DEVICE_BUSY (the status that indicates areservation conflict).

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack

Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
Disk.sys SCSI RESERVATION MSCS kbDSupport server cluster

Article ID: 195636 - Last Review: 02/21/2014 00:30:49 - Revision: 2.2

Microsoft Windows NT Server 4.0, Terminal Server Edition, Microsoft Windows NT Server 4.0 Enterprise Edition, Microsoft Cluster Server 1.1

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