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Configuring System File Cache Memory

About this task

Historian allows you to specify the maximum disk cache memory that an archiver can use. By default, Historian consumes 25% of system memory. If your computer has extra memory, then you can increase the disk cache. Increasing the disk cache memory optimizes the Historian performance. You should not increase system file caching cache memory if you do not have the necessary system resources.

Procedure

On the Start menu, select Run, type Regedit, and then select OK.
The Registry editor appears.
Open the following key folder.HKEY_LOCAL_MACHINE\SOFTWARE\Intellution, Inc.\iHistorian\Services\DataArchiver\
Create a new DWORD called FileSystemMaxCacheMB
Set the decimal value to a number. The value that you enter represents the maximum disk cache memory that an archiver can use.
Select OK and then close the Registry Editor.
Restart the Historian Data Archiver service.