Shared storage
To provide high availability for virtual machines, shared storage is absolutely essential. Shared storage can be directly attached to your Hyper-V Server hosts or can communicate with them over a TCP/IP network, Fibre Channel (FC) interconnects, or other networks. You may utilize dedicated devices or general purpose servers to fulfill this requirement.
Storage area network devices
Storage area network (SAN) devices are considered mid-end to high-end storage components. While the term has broad and sometimes inconsistent applications in the realm of interconnected shared storage devices, it is most commonly used to refer to a singular self-contained unit. A SAN contains a bank of hard drives that can be accessed by multiple hosts. What defines a unit as a SAN is that it presents its storage at the block level, just the way that internal storage would. SAN storage devices have sophisticated capabilities beyond simply providing disk storage and I/O. Exact features will vary among...
