In-Place upgrade from Server 2008R2 to Server 2012 with Exchange 2010 installed

I have a single Exchange 2010 SP3 Server with all the roles running on Server 2008 R2 ‘Standard’. I want to setup DAG for redundancy but Standard Edition doesn’t support the Clustering Feature needed to implement DAG. It’s my understanding that Server 2012 Standard supports Clustering, would an in-place upgrade to Server 2012 ‘Standard’ be a viable solution? Has anyone out there had experience with doing an in-place upgrade with Exchange Server 2010 installed?
Jim LehfeldtNetwork Operations ManagerAsked:
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Jamie McKillopConnect With a Mentor IT ManagerCommented:
Hello,

I would not attempt this. Microsoft doesn't support upgrading the OS when Exchange is installed. Build a new server then move all your mailboxes.

-JJ
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Tony GiangrecoCommented:
As far as the in-place upgrade, you should be ok. Regarding Exchange, you will probably need to make some adjustments. Exchange features can be affected due to a major change like this.

http://social.technet.microsoft.com/Forums/windowsserver/en-US/c28c2fdc-ad1f-49d4-aebe-ee8c0d374eed/2008-r2-2012-in-place-upgrade?forum=winserver8gen

Hope this helps!
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