Microsoft KB Archive/325463

= The Logical Disk Counters Read Zero on a Cluster After a Disk Failover and Failback =

Article ID: 325463

Article Last Modified on 2/22/2007

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APPLIES TO


 * Microsoft Windows 2000 Advanced Server

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This article was previously published under Q325463



SYMPTOMS
The Logical Disk counter values for a shared disk on a cluster may continue to appear as zero in System Monitor after a failover and failback occurs for a disk resource. For example, if you start System Monitor on node A in a cluster (in which disk counters are turned on for all disks) and monitor counters for the Logical Disk object and you then fail over a shared disk from node A to node B, the Logical Disk counter values (for example, Logical Disk\Available MBytes) on node A drop to zero. This is the expected behavior. However, if you then fail over the same shared disk back to node A, the Logical Disk counters remain at zero on node A. This is incorrect.

When you fail over the disk resource back to node A, the Logical Disk counters should resume typical operation on node A to correctly reflect the activity on the disk.



CAUSE
Performance counters are being removed when a disk goes offline (such as when the disk fails over to another computer in a cluster). System Monitor has been modified to check the volume status regularly after a volume goes offline, and to reinstate disk counters promptly when the volume comes back online again.



Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft 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

Hotfix Information
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Windows 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix has the file attributes (or later) 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 tool in Control Panel.   Date         Time   Version        Size    File name ---  23-Jul-2002  09:42  5.0.2195.5963  24,848  Perfdisk.dll 21-Jun-2002 10:09  5.2.2.10        3,584  Spmsg.dll 21-Jun-2002 10:10  5.2.2.10       44,544  Spuninst.exe 12-Jun-2001 22:05  5.0.2195.3727   3,856  Svcpack1.dll



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 Microsoft Windows 2000 Service Pack 4.



MORE INFORMATION
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 The 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

Keywords: kbhotfixserver kbqfe kbsysadmin kbwin2ksp4fix kbbug kbfix kbwin2000presp4fix KB325463

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