Exchange 2013 DAG

Hello Guys.

I have an Exchange 2013 box that is working fine.

I would like to create a DAG so that I can have a fail-over (that's of course besides Veeam B&R) so that I can assure business continuity.
(The Exchange box is running under Hyper-v 2012 R2 as a VM)

I would appreciate some tutorials on how to do it (or videos ? ) .

Thank you very much