Microsoft KB Archive/814627

= Free Disk Space Performance Counter Returns Value of Zero When Clustered =

Article ID: 814627

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Operations Manager 2000 Service Pack 1

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SYMPTOMS
After you install the Microsoft Operations Manager (MOM) Management Pack for Microsoft Windows 2000, the Physical Disk Counters may return incorrect results for performance measuring and threshold monitoring. For example, the Free Disk Space performance counter may return a value of zero.



CAUSE
This problem may occurs if you use physical disk performance counters to monitor Microsoft clusters.



WORKAROUND
As of March 2003, there is no work around for this problem.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
If there are Microsoft clusters in your managed environment, turn off any rules that use Physical Disk counters on clustered computers. You can do this by opening the MOM 2000 MMC, and then navigating down to:

Microsoft Operations Manager\Rules\Processing Rule Groups\Microsoft Windows 2000 Operating System\Windows 2000 - All Computers\Threshold Performance Counters for Windows 2000\Performance Processing Rules

By default, you can expect to see 27 performance counter rules. Those that do not appear with a red 'X' next to their names are turned on and may have to be turned off if you are experiencing this problem.

For additional information about clusters and performance monitoring with MOM, click the following article numbers to view the articles in the Microsoft Knowledge Base:

300117 How MOM Monitors Logical Disk and Physical Disk Performance Counters

300120 How to Limit Performance Data Collection in Microsoft Operations Manager

296034 Installation of OnePoint Database on a Clustered Node Stops When Setup

296040 Cluster Server Virtual Nodes Are Listed as Managed Nodes

