Hyper-v replica setup for small business running server 2012 r2 essentials

We are a very small business running Server 2012 R2 essentials running AD and 1 application. It is virtualized ona basic non-domain joined server host. DHCP on router. All 1 location and 1 network.

What is the best architecture for a small business setting up hyper-v replica to be used in case of primary machine hardware failure (no real-time failover necessary)? Trying to keep it cheap and simple.

Options:
1) Server 1 2012 r2 ess VM and Server 2 2012 r2 Essentials hyper-v host, both non-domain
Replicate to Server 2 2012 r2 ess host
(if this works, can i join both hosts to the DC on the VM? will this work if i need to turn on the replica DC?)

2) Server 1 2012 r2 ess VM and Server 2 2012 r2 Full with secondary DC on host or VM. +/-
Repilcate to 2012 r2 Full host

3) Server 1 2012 r2 ess VM and Sever 2 2012 r2 ess hyper-v host and Server 3 on workstation as DC VM. All domain joined hosts
Replicate to 2012 r2 ess host

Other questions:

what do i gain/lose with domain joined hosts vs non-domain hosts?

do i need a secondary dc? what do i lose if no secondary dc in a primary machine failure with replica.

can I replicate and turn on the replica in case of hardware failure without having hosts domain joined?


Thanks for helping

Larry
BeaglersAsked:
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Cliff GaliherCommented:
None of the above. You can only have one essentials server, and it must be a domain controller. All of your suggested topologies break licensing in one way or another. To do this right, you should really sit down with a consultant and have a conversation about hardware, budget, and desired goals. hyper-V replica is not a solution you can slap together and the conversation is too complex and in-depth to have through a forum.
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BeaglersAuthor Commented:
Running 1 essential sever and 1 full 2012 server wouldn't break license?
What would be a good solution then? We're talking simple 2 box server setup.
Not worried about hardware server choice, just architecture for small business to run replica.
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BeaglersAuthor Commented:
Thinking along these lines:

http://blog.powerbiz.net.au/hyperv/windows-server-2012-hyperv-replica-scenarios-for-small-business/

suggestions welcome, i'm ok with upgrading the licensing if needed. just need some ideas for architecture.
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Cliff GaliherCommented:
The final paragraph in the blog post sums it up nicely and paraphrases what I've already said. This just isn't something you can put together ad-hoc, and fast response forums are not very well suited to tackle larger planning projects.
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BeaglersAuthor Commented:
no other answer
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