In the previous chapter, I showed you how to get Hyper-V up and running. Although you can run virtualized workloads on a standalone Hyper-V server, doing so is a bad idea because the host server can become a single point of failure. If the Hyper-V server were to fail, then all of the virtualized workloads that are running on the server would also fail, resulting in a major outage. The best way to prevent this from occurring is to create a Windows failover cluster. That way, your virtual machines can be made fault tolerant.