One of the main sticking points with learning Hyper-V is getting your head around the Clustered Shared Volumes technique to provide .VHD files on a SAN to multiple Hyper-V hosts. The CSV technique is an extension of Microsoft Failover Clustering. Failover Clustering is the "new" name for the technologies formerly known as Microsoft Clustering Services. Setting up a quorum-ready cluster comes with a few prerequisites.
How To Configure Hyper-V Failover Cluster Quorum