Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I'm trying to understand the minimum required number and roles of VM required to host Exchange 2010 on an IaaS cloud platform.

NOTE: I'm talking about number of guests. Not number of physical boxes I'm hosting guests on. This is CLOUD. I want to draw a diagram and label guests and their roles.

What are the minimum roles involved and how can they be consolidated per virtual machine guest? You need a global catalog AD server, client access server, hub transport server, mailbox server, right? I'm not sure what can be combined into a single virtual host.

This isn't a HA scenario, so there's no failover or load balancing. Just the bare minimum to get Exchange serving for one or multiple domains. I can build best practice and HA off this minimal skeleton later.

Bonus round: What about Small Business Server? That combines AD and Exchange in a single box, doesn't it? This might be an alternative answer.

share|improve this question
add comment

1 Answer

up vote 4 down vote accepted

You could install everything on a OS image, including the domain controller (which would, by definition, have to be a global catalog server) role. It wouldn't be a "recommended" configuration per Microsoft, but, as you say, the Windows Small Business Server 2011 product proves that it's possible and will function.

share|improve this answer
    
See NOTE: I added to the question. This isn't involving physical hosts, this is number of guests and their roles. –  Aszurom Mar 12 '12 at 17:20
3  
@Aszurom: Yeah-- I got that. My first sentence says "OS image". You could install all of this in a single OS image / virtual machine / guest / etc. You could always use more, too. You asked for the minimum, and the minimum is 1. –  Evan Anderson Mar 12 '12 at 17:22
    
So you can (not should) combine global catalog domain controller, exchange client access, transport, and email database roles all on the same OS instance without SBS? Interesting. –  Aszurom Mar 12 '12 at 17:33
    
@Aszurom: Microsoft doesn't recommend such a configuration but you certainly can. –  Evan Anderson Mar 12 '12 at 17:51
add comment

Your Answer

 
discard

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.