Microsoft KB Archive/141833

= Performance Monitor Reports Wrong Percent of Free Disk Space =

Article ID: 141833

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q141833





SYMPTOMS
Performance Monitor reports the percent of free disk space incorrectly when used on a system with a different number of physical disks than the system where the workspace was originally created.

Steps to Reproduce Problem

 * 1) Go to a machine with one physical disk.
 * 2) Using Performance Monitor, create a workspace in the alert log.
 * 3) Add the counter %freespace to that log and make it <20% for drive 'C', parent '0'.
 * 4) Save the workspace.
 * 5) Load the saved workspace in Performance Monitor on a system with two or more physical drives.

The % of disk space is reported as 0% instead of the correct value and the parent physical disk is reported as '--' instead of '0'. Performance monitor continues to generate event log entries at the specified interval reporting disk space at 0%.



CAUSE
Performance monitor does not correctly translate workspace settings for disk space between two machines with a different number of physical disks.



WORKAROUND
Create the workspace on each machine that has a different number of physical disks. Performance monitor will then report correct percent of free disk space for that system.



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 3.51. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: prodnt

Keywords: KB141833

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