Hello,
I know there are articles online which provide helpful hits regarding upgrading a Hyper-V cluster to Windows Server 2012 R2 x64 but I would like to your advice for my environment.
I currently have 4 Hypervisors configured in a Failover Cluster setup. I now have another server of the same model and type (R720) which I will be upgrading to Windows Server 2012 R2 x64 since it has never been applied to the Hyper-V cluster (I have no idea why my predecessor left it hanging).
The virtual machines are stored on my Dell Compellent which is connected to the Hyper-V cluster via fiber (10GB network speeds).
My question is:
1. Can I upgrade the Hyper-V cluster to Windows Server 2012 R2 x64 without having to re-install the entire system and start from scratch? I would shutdown all VMs prior to this. This will not affect production as I will be making these changes in the summer when classes are not in session.
2. What would the problems be, if any, if I were to upgrade each Hyper-V host without re-installing the entire system?
I look forward to hearing from you and thanks in advance,