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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > Servers with more than 32 logical CPUs generate an error

Servers with more than 32 logical CPUs generate an error

Overview

When a server is configured with more than 32 logical CPUs, the following message displays in the server Event Log:

Unable to read Server Queue performance data from the Server service. 
The first four bytes (DWORD) of the Data section contains the status code, 
the second four bytes contains the IOSB.Status and the next four bytes contains 
the IOSB.Information.

Environment

NPM 11.5.2

Cause 

The 32-bit application cannot query Server Work Queues counters on Windows Server 2008 R2-based servers with more than 32 CPUs. 

Resolution

See 32-bit application cannot query performance "Server Work Queues" counters on Windows Server 2008 R2-based computer that has more than 32 processors for troubleshooting. (© 2019 Microsoft Corporation, available at https://support.microsoft.com, obtained on January 3, 2019.) 

 

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