Physical placement

All of this equipment is going to need a final home. If you're transitioning from a physical deployment to a Hyper-V Server cluster, the net space usage may actually decline. However, there is an interim period in which you'll need to have both. If you're adding switches, you'll need space for those as well. The extra wiring will need to be routed and managed.

Security is another concern. Theft and direct access by malicious individuals need to be prevented. Physical security is just as important as digital security.