Validate simultaneous failover test fails when you run cluster validation tests on a multi-node failover cluster that is running Windows Server 2008 R2 SP1

Applies to: Windows Server 2008 R2 Service Pack 1Windows Server 2008 R2 DatacenterWindows Server 2008 R2 Enterprise More

Symptoms


Consider the following scenario:
  • You configure a multi-node failover cluster to run Windows Server 2008 R2 SP1.
  • About 100 to 250 cluster disks are connected to the multi-node failover cluster.
  • You run the storage tests that are part of the cluster validation tests on the cluster by using the "Validate a Configuration" wizard.
In this situation, a validate simultaneous failover test fails, and an error message that resembles one of the following is displayed in the validation report:
Failed to online cluster disk <disk number> from node <host name>, failure reason: Cannot complete this function.
Failed to offline cluster disk <disk number> from node <host name>, failure reason: Cannot complete this function.
Failed to release cluster disk <disk number> from node <host name>, failure reason: Cannot complete this function.

Additionally, an error message that resembles the following is displayed in the ValidateStorage.log file:
VerifyDiskReserveState: Exit VerifyDiskReserveState: Status 1003

Note If you reduce the number of cluster disks, this issue is less likely to occur.

Cause


This issue is caused by a race condition that occurs between the allocation and release of a file handle. When a file handle is associated with one of the disks (disk 1), the file handle is released and allocated to another one of the disks (disk 2) during the arbitration stage. Therefore, when the file handle is used to search disk 2 during the offline stage, disk 1 values are returned instead of disk 2 values.

Note When you run the validate simultaneous failover test on multiple disks, each disk completes the arbitrate, online, offline, and release stages.

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 website: Note 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.

Prerequisites

To apply this hotfix, you must be running Windows Server 2008 R2 Service Pack 1 (SP1).

For more information about how to obtain a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix, you do not have to change the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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 about software update terminology, 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 file information

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2
File nameAmd64_clusdisk.inf_31bf3856ad364e35_6.1.7601.22173_none_4c01e7f3343d9963.manifest
File versionNot applicable
File size1,743
Date (UTC)24-Nov-2012
Time (UTC)07:19
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_clusdisk.inf_31bf3856ad364e35_6.1.7601.22173_none_efe4f0657bde3129.manifest
File versionNot applicable
File size1,742
Date (UTC)24-Nov-2012
Time (UTC)07:14
PlatformNot applicable