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Best Practices

  • Before making changes to your virtual memory configuration, monitor the demands for memory in Performance Monitor to determine the nature of the memory shortage.

  • If you are not sure how much virtual memory is needed or desirable, don't change anything; let the VMM adjust the paging file size as needed.

  • Consider distributing the paging file across multiple physical disks by creating multiple paging files, as long as the disk controller hardware can write concurrently to the different physical disks.

  • Consider locating the paging file on a volume that is not very active in order to reduce competition for the disk resource.

  • Remember to create a paging file at least equal to system RAM, plus one megabyte on the boot partition if you want to be able to get a dump of system memory.

Tuning the Paging File Size on Systems with Very Large Amounts of Physical RAM

Care must be taken when sizing the paging file on a system that is using either four gigabyte tuning (4 GT) or Very Large Memory (VLM). Because the optimal paging file size will depend on the way that applications use memory on the server, careful performance analysis under varying memory loads is needed.

For more information on 4GT or VLM, see "Memory Management" in Chapter 1.1, "Overview of Windows 2000 Architecture".



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