Change the size of the cluster diagnostic log

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

To change the size of the cluster diagnostic log

Open Control Panel.
Double-click System.
On the Advanced tab, click Environment Variables.
Under System variables, click New.
In the New System Variable dialog box, in Variable name, type ClusterlogSize, and in Variable value, type the size in megabytes that you want the cluster log to be.
Click OK until you exit the System Properties page.
Stop and restart the Cluster service. For more information on starting and stopping the Cluster service, see Related Topics.

Notes

To open a Control Panel item, click Start, click Control Panel, and then double-click the appropriate icon.
The default diagnostic cluster log size is 8 megabytes (MB), but can be changed in the manner described previously.
When the cluster log file is full, the Cluster service overwrites the first half of the log with the second half. Therefore, if the cluster log size is nMB, then only (n/2)MB of that log is guaranteed to be valid.
You must set ClusterlogSize as a System variable, not a user variable.

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