Microsoft KB Archive/257982

= Cluster Service Causes CPU Use at 100 Percent When Hundreds of File Share Resources Are in Use =

Article ID: 257982

Article Last Modified on 3/1/2007

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APPLIES TO


 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows NT Server 4.0 Enterprise Edition

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This article was previously published under Q257982



SYMPTOMS
If you define hundreds of file share resources within a cluster, one or more nodes in the cluster may begin to provide reduced performance. When this occurs, Task Manager may report excessive CPU utilization by either the Clussvc.exe or Rsrcmon.exe processes.



CAUSE
On some clusters, several hundred resources may consume enough overhead to impact performance. The number of total resources that a cluster may process without significant overhead varies based on the abilities of the hardware.



RESOLUTION
The most efficient way to create many file shares on a cluster is to create sub-folder shares because this option can significantly reduce the number of resources and overhead. This option also simplifies administration and disaster recovery.

If you must use individual File Share resources for several hundred shares, it may be necessary to add more CPUs or memory to the server.



MORE INFORMATION
For additional information about how to create file shares on a cluster, click the article number below to view the article in the Microsoft Knowledge Base:

227967 How to Create File Shares on a Cluster

254219 Security Considerations When Implementing Clustered File Shares

256926 Implementing Home Folders on a Server Cluster

Keywords: kbprb KB257982

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