Definitions for "Storage Area Network"
A set of interconnected devices (such as disks and tapes) and servers that are connected to a common communication and data transfer infrastructure such as Fibre Channel.
A network of storage devices. Most often, Fibre Channel based networking, using a Fibre Channel switch between host and storage.
A dedicated network for storage operations, whose primary purpose is to transfer data between computer systems and storage devices. SANs provide the ability to share a single storage array across many servers or applications.