I have a small lab network with a host machine running Server 2008R2 SP1 and three VM's each running Server 2008R2 SP1. Two of the VM's are DC's with a functional level of 2008.
I would like to upgrade everything to Server 2012R2 and was curious in what sequence I should approach this. My plan is to shutdown all VM's and focus on upgrading the host to Server 2012R2. I have read it is better to just create new Server 2012 DC's in Hyper V and migrate to them rather than trying to upgrade the existing 2008 DC's.
Can someone point me in the direction of best practices for this? Or does anyone have any experience with something similar?
Thanks.