Hyper-v Generation 2

Looking for advice on using Generation 2 for Hyper-V VMs. As we are in the process of upgrading all of our servers, I was thinking it might be a good time to move to Generation 2. Can you tell me if there is a reason not to? All of my VM host are already Windows server 2012r2.

Great link with info on the differences between Generation 1 and 2.
https://www.serverwatch.com/server-tutorials/hyper-v-2012-r2-pros-and-cons-of-generation-1-vs.-generation-2-vms.html

Regards,
ABBEadmin
Donna JohnsonAsst. Systems ManagerAsked:
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization ConsultantCommented:
Can you tell me if there is a reason not to?

No. I would have thought any new servers you were building now, would have been Gen2.

As for upgrading...not quite sure it's worth the man effort, but certainly building new VMs, use Gen2.

Make sure OS is supported!

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Donna JohnsonAsst. Systems ManagerAuthor Commented:
Thanks Andrew! I have supported VM's for a few years now but only built a few. Trying to make sure I do it right, instead of just going with how it was.
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
The principle thing to watch out for will be backup ability to back the VMs up and then restore.

By default, Gen2 VMs use uEFI Boot and Secure Boot. Some backup products may not work well with this configuration especially for restore. It's something to verify as far as any hoops that may be needed to restore.
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