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Chapter 2.3. Configuring Devices and Sys... > Going Deeper: Windows 2000 Demand Pa...

Going Deeper: Windows 2000 Demand Paging

The paging file is a system file named PAGEFILE.SYS. By default, it's a hidden file in the root of the systemdrivevolume. If Pagefile.sys does not exist at startup, Windows 2000 will create a new one. The default initial size is one and half times the amount of system RAM or the amount of available free space, whichever is less. For example, on a system with 256 MB of RAM, the default initial paging file size would be 384 MB.

VMM will adjust the size of the paging file as needed, up to the maximum size specified in System Properties. In general, it's best to leave the paging file settings at the default and ensure that adequate RAM is available to keep paging to a minimum and still have adequate RAM available for file caching. Optimal settings may differ, depending on the applications supported. In memory shortage situations, careful analysis is needed to determine the appropriate settings.


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