Would like to know the recommendation  DAG for exchange 2010, environment  
First can I setup the DAG with 2 exchange server both are VM on hyperv , server 2012r2
sure each on different host
Is it the recommendation to host the server with Dag in the same location in the same datacenter, or it is more recommended to host the Dag on the remote site
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Cliff GaliherConnect With a Mentor Commented:
Exchange 2010 is not supported on 2012 R2, nor has Microsoft announced any plans to add support for that combination in the future.
bugs-itAuthor Commented:
the hyper host  is 2012 r2 the VM is 2008R2
Malli BoppeConnect With a Mentor Commented:
You need to have windows enterprise license for DAG. In regards to setting up DAG in single site I don't see any problems.

To provide HA and site resilance  between 2 sites.  You will need more then 2 servers. I have setup DAG's with two servers , one each in a site. This would require administrator to make changes to properly failover from Site1 to Site 2.
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Gareth GudgerConnect With a Mentor Commented:
That's fine. Just make sure the virtual machines themselves are 2012 Release 1 or 2008.

You can run DAGs virtualized no problem.

Traditionally it was recommending to do RAW LUN mappings for Exchange databases. But technologies such as VMware 5.5 claim you can put the databases directly on virtual hard drives. Also, if your environment is small (100 users or less) you can put them on virtual disks as well.
bugs-itAuthor Commented:
To provide HA in the same site
i need a witness server ? and that is it
Gareth GudgerCommented:
Yes. You need a FSW.
bugs-itAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for bugs-it's comment #a39817320

for the following reason:

i know that
Malli BoppeCommented:
I think this should be closed by assigning points to the members who have helped you.Not just closing it off.
Malli BoppeCommented:
I think the following posts should be awarded points

ID: 39815972
ID: 39816638
ID: 39816639
bugs-itAuthor Commented:
but i didn't get helped for my question non of the answers helped me
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