Microsoft KB Archive/302895

= Program That Runs Multiple I/O Operations to Multiple Fiber Channel Disks May Hang =

Article ID: 302895

Article Last Modified on 2/21/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2

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This article was previously published under Q302895



SYMPTOMS
A program that runs multiple I/O operations to fiber channel disks that are connected to a storage router may stop responding (hang) after the network connection is lost.



CAUSE
The code defect in the Windows 2000 scsiport driver causes this behavior. While I/O is happening, if the miniport driver returns SCSI Request Blocks (SRBs) with status SRB_STATUS_BUSY and there are also some pending I/O requests in scsiport driver queue, then scsiport may never retry the SRB that was returned with SRB_STATUS_BUSY and all the pending requests in the scsiport queue remain pending forever. This may cause the program to hang because I/O requests remains pending forever with scsiport.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

  Date        Time    Version          Size     File name ---  7/5/2001   02:35p   5.0.2195.3820   73,072   Scsiport.sys



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.



MORE INFORMATION
This problem has been reported to occur with the CISCO SN 5420 Storage Router. For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 Datacenter Program and Windows 2000 Datacenter Server Product

For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:

296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Additional query words: kbBaseOS

Keywords: kbbug kbfix kbwin2000presp3fix kbqfe kbhardware kbwin2000sp3fix kbenv kboswin2000fix kbhotfixserver KB302895

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