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Paging file larger than physical memory

Small Business Server


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  #1  
Old 06-01-2009
Harvs
 
Posts: n/a
Paging file larger than physical memory

Hi

I've run the Exchange BPA on one of my clients' SBS 2003 Server installation
with Exchange SP2. One of the critical issues highlighted is "The space for
the paging file (4092) is larger than the physical memory (2047). This may
affect the system performance. It is recommended to have paging file size
equal to the physical memory."
The server has 2 GB of memory installed. On the Virtual Memory dialog page
the "Total paging file size for all drives" is recommended to be set at 3069
MB, and is currently configured with Custom Size: initial size 2046 Maximum
size 4092.

The BPA help sends me to a KB (bb738135) article which states "The
recommended page file size is equivalent to 1.05 times the RAM up to a
maximum of 4,095 MB. This means that the largest paging file size per volume
that you can set is 4,095 MB."

When viewing some of the other articles listed at the bottom of bb738135
further advice suggests that 1.5 times (not 1.05 times) the installed memory
is best. In fact that supports the recommended size stated in the Virtual
Memory dialog.

As these Microsoft issued articles appear to contradict themselves, can you
tell me what the correct settings should be to satisfy both the Exchange BPA
and the SBS server requirements.

Thanks for your interest and help.

Harvs


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  #2  
Old 06-01-2009
Cris Hanna [SBS MVP]
 
Posts: n/a
Re: Paging file larger than physical memory

Anywhere between 1.5 and 2.0 will usually work quite well. There is a
limit of 4GB per volume though. So if you have 4GB of physical RAM, you'd
have to spread the Pagefile over a couple of volumes/drives

--
Cris Hanna [SBS - MVP]
Contributing Author, Windows Small Business Server 2008 Unleashed
http://www.amazon.com/Windows-Small-...7269967&sr=8-1
------------------------------------
MVPs do not work for Microsoft
Please do not submit questions directly to me.

"Harvs" <Harvs@community.nospam> wrote in message
news:uXNZ2X%23bJHA.5412@TK2MSFTNGP04.phx.gbl...
> Hi
>
> I've run the Exchange BPA on one of my clients' SBS 2003 Server
> installation with Exchange SP2. One of the critical issues highlighted is
> "The space for the paging file (4092) is larger than the physical memory
> (2047). This may affect the system performance. It is recommended to have
> paging file size equal to the physical memory."
> The server has 2 GB of memory installed. On the Virtual Memory dialog page
> the "Total paging file size for all drives" is recommended to be set at
> 3069 MB, and is currently configured with Custom Size: initial size 2046
> Maximum size 4092.
>
> The BPA help sends me to a KB (bb738135) article which states "The
> recommended page file size is equivalent to 1.05 times the RAM up to a
> maximum of 4,095 MB. This means that the largest paging file size per
> volume that you can set is 4,095 MB."
>
> When viewing some of the other articles listed at the bottom of bb738135
> further advice suggests that 1.5 times (not 1.05 times) the installed
> memory is best. In fact that supports the recommended size stated in the
> Virtual Memory dialog.
>
> As these Microsoft issued articles appear to contradict themselves, can
> you tell me what the correct settings should be to satisfy both the
> Exchange BPA and the SBS server requirements.
>
> Thanks for your interest and help.
>
> Harvs
>
>


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  #3  
Old 06-01-2009
Jim Behning SBS MVP
 
Posts: n/a
Re: Paging file larger than physical memory

Ignore the BPA. Tradition in SBS is 1.5x ram. Server may be happier
with 4 gigs of ram though. Ram can be very cheap right now. If you
have a server motherboard it should take 4 gigs easily.

On Tue, 6 Jan 2009 10:03:00 -0000, "Harvs" <Harvs@community.nospam>
wrote:

>
>Hi
>
>I've run the Exchange BPA on one of my clients' SBS 2003 Server installation
>with Exchange SP2. One of the critical issues highlighted is "The space for
>the paging file (4092) is larger than the physical memory (2047). This may
>affect the system performance. It is recommended to have paging file size
>equal to the physical memory."
>The server has 2 GB of memory installed. On the Virtual Memory dialog page
>the "Total paging file size for all drives" is recommended to be set at 3069
>MB, and is currently configured with Custom Size: initial size 2046 Maximum
>size 4092.
>
>The BPA help sends me to a KB (bb738135) article which states "The
>recommended page file size is equivalent to 1.05 times the RAM up to a
>maximum of 4,095 MB. This means that the largest paging file size per volume
>that you can set is 4,095 MB."
>
>When viewing some of the other articles listed at the bottom of bb738135
>further advice suggests that 1.5 times (not 1.05 times) the installed memory
>is best. In fact that supports the recommended size stated in the Virtual
>Memory dialog.
>
>As these Microsoft issued articles appear to contradict themselves, can you
>tell me what the correct settings should be to satisfy both the Exchange BPA
>and the SBS server requirements.
>
>Thanks for your interest and help.
>
>Harvs
>

See what SBS support is working on
http://blogs.technet.com/sbs/default.aspx
Check your SBS with the SBS Best Practices Analyzer
http://blogs.technet.com/sbs/archive...A/default.aspx
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