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Page file size for 16GB server?

Posted on 2009-05-04
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Hi, I'm building a W2k8 x64 server with 16GB of RAM.  Now I know the 1.5 - 3x "rule of thumb" for page file size, and Windows has set it to 16 GB by default with a 24 GB recommended size, but a 16 - 24 GB page file just seems wrong to me.  Do I really want that much data being paged out to a dog slow spindle?  This server will be running MS SQL 2008 as well.

What say yous?
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Question by:eugene81
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by:v46n
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no, with that much ram it doesnt make sense to have that large of page file. I have a couple sql servers running 16GB of ram. the page file is set to 2Gb with max of 6. It never goes over 2GB from all of my expierence. You can set the minimum at 2GB and see if it increases, but i doubt it will unless you can somehow really stress the system.
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by:eugene81
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That's what I thought.  I set it to 5 GB on a separate volume.

Anybody else care to give his/her input?
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v46n earned 125 total points
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I wouldnt even set the minimum that high. The more the page file is available the more windows will tend to use it swapping pages out of physical memory onto the much slower page file,
so having an excessively large page file can be counter productive.
Heres an article from microsoft talking about running perfmon to determine what size you actually need.
http://support.microsoft.com/kb/889654
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