exBPA Page File Size

apexgalleria · Joined: 08 Jan 2008 Posts: 2

I'm getting warnings from exBPA now for my page file. This article
http://technet.microsoft.com/en-us/library/bb738135.aspx is saying
page file should be 1.05xphysical RAM. I've always understood the
rule
to be 1.5xRAM. Could this be a typo in BPA's ruleset? Why the change?
Why are there still plenty of articles recommending 1.5 RAM. Do I
really need to reduce the page file size on all my servers? What are
the impacts if we do this? Thanks.

Archived from group: microsoft>public>exchange>tools

Rui Silva [MVP] · Joined: 05 Aug 2007 Posts: 32

The size of the Paging File is not consensual.
My advice is: if ExBPA recommends it, do it! (for your Exchange servers, of
course)

As a bonus, here's a cool link for you Smile

What is the Page File for anyway?
http://blogs.technet.com/askperf/archive/2007/12/14/what-is-the-page-file-for-anyway.aspx

--
Rui Silva
MVP Windows Server System - Exchange Server
Blog "subject: exchange", http://msmvps.com/ehlo

wrote in message @c23g2000hsa.googlegroups.com...
> I'm getting warnings from exBPA now for my page file. This article
> http://technet.microsoft.com/en-us/library/bb738135.aspx is saying
> page file should be 1.05xphysical RAM. I've always understood the
> rule
> to be 1.5xRAM. Could this be a typo in BPA's ruleset? Why the change?
> Why are there still plenty of articles recommending 1.5 RAM. Do I
> really need to reduce the page file size on all my servers? What are
> the impacts if we do this? Thanks.

robert.larson · Joined: 14 Jan 2008 Posts: 1

I know what the paging file is. I'm an MCSE. What I'm wondering is,
why is Microsoft suddenly changing their page file size
recommendation. Or could this be a typo. For years the recco has been
1.5 x RAM. Now it's 1.05 x RAM? I'm wondering if that's a typo in the
exBPA ruleset. Or if it's not. What's the rationale. Thanks.

Oliver Moazzezi [MVP] · Joined: 02 Oct 2007 Posts: 583

How much ram have you got in the machine? This may be the reason to what
you're seeing.

The concensus is for the page file is physical ram + 10mb when it's 4GB of
ram or over.

Oliver

wrote in message @21g2000hsj.googlegroups.com...
>I know what the paging file is. I'm an MCSE. What I'm wondering is,
> why is Microsoft suddenly changing their page file size
> recommendation. Or could this be a typo. For years the recco has been
> 1.5 x RAM. Now it's 1.05 x RAM? I'm wondering if that's a typo in the
> exBPA ruleset. Or if it's not. What's the rationale. Thanks.

ExBPA Page file settings report Paging file size -- Paging file size Equal to the amount of RAM in the server plus 10 MB This paging file size accounts for the amount of memory needed to collect information if the o

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