Symptoms
Consider the following scenario:
-
You install a Windows Server 2008 failover cluster on a computer that has the Microsoft Multipath I/O (MPIO) solution installed.
-
Many logical unit numbers (LUNs) are attached to this computer. For example, more than 30 LUNs are attached.
-
Hotfix 963702 is installed on the computer.
In this scenario, Windows Server 2008 may stop responding during the startup process.
Cause
The MPIO.sys driver overuses the work item queue in the system. This behavior causes a deadlock situation between a persistent reservation (PR) work item of the cluster and a work item in MPIO.
Resolution
Hotfix information
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.
Prerequisites
To apply this hotfix, the computer must run Windows Server 2008.
Restart requirement
You have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other previously released hotfixes.
Registry information
To use this hotfix, you do not have to make any changes to the registry.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Server 2008 file information note
The MANIFEST files (.manifest) and MUM files (.mum) installed for each environment are
listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.
Windows Server 2008, x86-based version
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Mpio.inf |
Not Applicable |
3,760 |
12-Feb-2009 |
00:51 |
Not Applicable |
|
Mpio.sys |
6.0.6001.22375 |
107,504 |
12-Feb-2009 |
05:44 |
x86 |
Windows Server 2008, x64-based version
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Mpio.inf |
Not Applicable |
3,768 |
12-Feb-2009 |
00:56 |
Not Applicable |
|
Mpio.sys |
6.0.6001.22375 |
131,040 |
12-Feb-2009 |
06:18 |
x64 |
Windows Server 2008, Itanium-based version
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Mpio.inf |
Not Applicable |
3,764 |
11-Feb-2009 |
23:50 |
Not Applicable |
|
Mpio.sys |
6.0.6001.22375 |
290,272 |
12-Feb-2009 |
04:51 |
IA-64 |
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
Additional files for all supported x86-based versions of Windows Server 2008
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Package_for_kb967724_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum |
Not Applicable |
1,421 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_sc~31bf3856ad364e35~x86~~6.0.1.0.mum |
Not Applicable |
1,422 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum |
Not Applicable |
1,425 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_server~31bf3856ad364e35~x86~~6.0.1.0.mum |
Not Applicable |
1,430 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
X86_mpio.inf_31bf3856ad364e35_6.0.6001.22375_none_1d75cf30a8a61bd0.manifest |
Not Applicable |
1,659 |
12-Feb-2009 |
18:33 |
Not Applicable |
Additional files for all supported x64-based versions of Windows Server 2008
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Amd64_mpio.inf_31bf3856ad364e35_6.0.6001.22375_none_79946ab461038d06.manifest |
Not Applicable |
1,661 |
12-Feb-2009 |
18:35 |
Not Applicable |
|
Package_for_kb967724_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,429 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,430 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,433 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_server~31bf3856ad364e35~amd64~~6.0.1.0.mum |
Not Applicable |
1,438 |
12-Feb-2009 |
18:31 |
Not Applicable |
Additional files for all supported Itanium-based versions of Windows Server 2008
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Ia64_mpio.inf_31bf3856ad364e35_6.0.6001.22375_none_1d777326a8a424cc.manifest |
Not Applicable |
1,660 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum |
Not Applicable |
1,425 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum |
Not Applicable |
1,426 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum |
Not Applicable |
1,429 |
12-Feb-2009 |
18:31 |
Not Applicable |
|
Package_for_kb967724_server~31bf3856ad364e35~ia64~~6.0.1.0.mum |
Not Applicable |
1,434 |
12-Feb-2009 |
18:31 |
Not Applicable |
