So, Hyper-V replica is cool, but in Windows Server 2016 it became even cooler. It is now possible to configure the timeframe that resynchronization is allowed to happen.
I was wrong, this setting is actually available in Windows Server 2012 R2, just never seen it before, still cool, but not new in Windows Server 2016, sorry.
/mike
Categories: Hyper-V, Windows Server 2016