Configuring pagefile size on a Hyper-V host machine

by Mitch Tulloch [Published on 29 Nov. 2011 / Last Updated on 29 Nov. 2011]

A tip concerning configuring the pagefile size on a Hyper-V host machine.

If you have a Hyper-V host machine with a lot of RAM, say 128 GB of RAM, then you should know that leaving the pagefile setting on the host to its default value of System Managed will cause a pagefile to be created that has a size equal to the amount of RAM in your system—in other words, your pagefile will be 128 GB in size! You don't need a pagefile anywhere near this large on a Hyper-V host machine—you only need a pagefile big enough to be able to get a kernel dump for troubleshooting purposes. Anything larger than that is a waste of the host's disk space. So instead of accepting the default System Managed pagefile setting, you should specify minimum and maximum pagefile sizes equal to 1x and 3x the amount of RAM used by the host operating system, respectively.

Mitch Tulloch is a Microsoft Most Valuable Professional (MVP) and widely recognized expert on Windows administration, deployment and virtualization. For more tips by Mitch you can follow him on Twitter or friend him on Facebook.

The Author — Mitch Tulloch

Mitch Tulloch is a widely recognized expert on Windows administration, networking, and security. He has been repeatedly awarded Most Valuable Professional (MVP) status by Microsoft for his outstanding contributions in supporting users who deploy and use Microsoft platforms, products and solutions. Mitch has published over two hundred articles on different IT websites and magazines, and he has written or contributed to almost two dozen books and is lead author for the Windows 7 Resource Kit from Microsoft Press. For more information, see www.mtit.com .

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