Some general info
- Each host needs to be licensed.
- A minimum of 8 core licenses is required for each physical processor and a minimum of 16 core licenses is required for each server.
- Core licenses are sold in packs of two.
- Standard Edition provides rights for up to 2 Operating System Environments or Windows Servers containers with Hyper-V isolation when all physical cores in the server are licensed. For each additional 1 or 2 VMs, all the physical cores in the server must be licensed again.
- DataCenter Edition provides rights for unlimited Operating System Environments or Windows Servers containers with Hyper-V isolation when all physical cores in the server are licensed.
With a Standard license you activate the guests using the same product key as was used on the host.
DataCenter Edition provides rights for unlimited Operating System Environments in addition you can use AVMA for activation of guests ranging from 2012 R2 to 2019 (or 2022 if the host is 2022)
https://learn.microsoft.com/en-us/windows-server/get-started/automatic-vm-activation#avma-keys
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