Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is there a definitive guide for PageFile size on the latest 64-bit servers with large amounts of RAM?

I've seen conflicting recommendations, and am wondering if the latest releases have changed the recommendations.

share|improve this question
What you should set the Pagefile to is highly dependent on what the server is doing. – Chris S Oct 1 '11 at 2:50
Here's a MS reference – Darian Miller Oct 1 '11 at 3:01
up vote 2 down vote accepted

When running SQL Server on a box with a lot of RAM set the page file to about 6 Gigs. SQL Server won't swap to disk unless something really wrong happens and allocating 192 gigs of disk space to a page file that will never be used is insane.

share|improve this answer
What about the referrals to always setting your page file size to RAM x 1.5 since that's what Windows expects? – Darian Miller Oct 1 '11 at 2:55
Here's one reference:… – Darian Miller Oct 1 '11 at 2:58
On the flip side, the comment on this link:… by Remus Rusanu disputes the 1.5x requirement. – Darian Miller Oct 1 '11 at 3:07
They are outdated. Old times (little ram) and generic - with SQL Server pecial rules apply as SQL Server basically uses the RAM as cache so it does not hit the disc (slow). Having the cache cached out to disc sort of makes it redundant to start with. – TomTom Oct 1 '11 at 5:59

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.