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Spec server for Exchange

SOMAguy used Ask the Experts™
Hi guys,

I'm curious if there a matrix on server for Exchange.  Say, you asked to spec server for Exchange 2010, 1000 users.  Abvoisly it should be clustered and redundant.  So, how would you spec the hardware.  What's the rule for that?

Thanks in advance
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Yeah, well its a grey area..

Depends on things like, how many servers will be spreading the load, what functions they contain, how much traffic they process and how many concurrent users are in use in peak times.

Also, the response times will be relative here, therefore network speeds, database size and additional functionality all come into play.

For 1000 Users, you could get away with a standard server on a dual core processor with a single SATA drive, but not if they all want to open a 2Gig mailbox at the same time..

Clustering, helps with access speed, but redundancy reduces it, so its all about your requirements. as they say, the devil is in the detail..
Quite grey indeed... there's a million ways to break it up.

This may give you some ideas:

My recommendation is to keep things as simple as possible in terms of the number of roles you split things into if you can.  All depends on if your setting quotas or not and what you expect user mailbox sizes to look like in a few years.  Personally, I would use network based SANs for my backend storage (perhaps a Lefthand or similar iSCSI SANs) and maybe just use VMWare vSphere as well if availibility and business continuity is a big concern.
This looks like an interesting read: http://blogs.techrepublic.com.com/datacenter/?p=1978

Has links to some more info and a few hardware requirement "calculators".

Good luck!



Interesting articles.  Thank you!
I will definitely review and study them.
Top Expert 2014
Mailbox role calculator here may help, http://msexchangeteam.com/archive/2009/11/09/453117.aspx

HP have a calculator for 2007 at http://h71028.www7.hp.com/ActiveAnswers/us/en/sizers/microsoft-exchange-server.html that'll be pretty good for 2010 as well.

You can also look at some ESRP solutions at http://technet.microsoft.com/en-us/exchange/ff182054.aspx , also chcck the previous ESRP solutions as much more of them to look at.


Awesome!  Thanks guys!