Overview of the failover cluster
A Hyper-V Failover Cluster consists of two or more Hyper-V Server compute nodes. Technically, it's possible to use a Failover Cluster with just one computing node; however, it will not provide any availability advantages over a standalone host and is typically only used for migration scenarios.
Note
I don't recommend you to implement a Hyper-V cluster in production without at least three nodes. A single node cluster doesn't ensure high availability. A two-node cluster is not efficient because half of the resources are dedicated to high availability.
A Failover Cluster hosts roles such as Hyper-V virtual machines on its computing nodes. If one node fails due to a hardware problem, it will no longer perform cluster ...
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