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Sometime you just want to scream [32bit and the /3GB switch]

  Asked By: Nilay    Date: Dec 19    Category: MOSS    Views: 1071

This post may be a little bit of a rant but who knows it may end up with
a question....

Ok... I'd thought I'd do a little bit of searching and see what KB
articles/hotfixes have been released since MOSS2007 hit the streets.

(BTW I found this kbalertz site which lets me RSS feed on new sharepoint
2007 articles www.kbalertz.com/rss/SharePointServer2007.xml )

At this stage of our MOSS2007 deployment project we are starting to spec
the farm configs, what size servers, what O/S, etc.

So I found this KB article talking about "The Windows Server 2003 /3GB
switch is not supported in Windows SharePoint Services 2.0 or in later
versions or in SharePoint Portal Server 2003 SP2 or in later versions".
(http://support.microsoft.com/kb/933560 )

Hhmm interesting, basically since WSS introduced large file support (and
we're an engineering company so our file sizes can get quite large),
don't use the /3GB switch option or file transfer performance will take
a dive and the server can become unstable. As our standard server config
comes with 4GB RAM we commonly use this option on our app servers to
give a bit more memory to the app.

The last line of article states that if you need more memory use 64bit.
Well that's fine I was heading down that road anyhow.

HOWEVER Adobe haven't even hinted at releasing a 64bit version of their
PDF ifilter!!!!

So I think that is going to force me into a mixed 32/64bit farm.

64bit on WFE's, 64bit on SQL DB, 32bit for the index server (with adobe
pdf ifilter).

If anyone can see a problem with this could they drop me a line please?

That's fine for a our core farm but for a couple of our regional farms I
was thinking of a 2 box solution (1 x wfe/index/app server and 1 x DB

Anyhow rant over, just thought I'd share what I found.



2 Answers Found

Answer #1    Answered By: Amrita Durgude     Answered On: Dec 19

I was speaking with Bill English and some guys the other day and thats
what they recommend - put farm  on 64 bit  except index server  which goes
on 32 bit - load up ifilter just on index server - add icons to search

Answer #2    Answered By: Maricela Conway     Answered On: Dec 19

There are issues with 64 bit. In addition to the following blog, the
Lotus Notes protocol handler isn't available on 64 bit. I also believe
the iFilters go on the WFEs (crawlers), if you have a default