: 16–17 A SAN is a combination of hardware and software. In addition to storing data, SANs allow for the automatic backup of data, and the monitoring of the storage as well as the backup process. ![]() A SAN is, at its simplest, a dedicated network for data storage. ![]() Storage area networks (SANs) are sometimes referred to as network behind the servers : 11 and historically developed out of a centralized data storage model, but with its own data network. The Fibre Channel SAN connects servers to storage via Fibre Channel switches. Newer SAN configurations enable hybrid SAN and allow traditional block storage that appears as local storage but also object storage for web services through APIs. A SAN typically is a dedicated network of storage devices not accessible through the local area network (LAN).Īlthough a SAN provides only block-level access, file systems built on top of SANs do provide file-level access and are known as shared-disk file systems. SANs are primarily used to access data storage devices, such as disk arrays and tape libraries from servers so that the devices appear to the operating system as direct-attached storage. A storage area network ( SAN) or storage network is a computer network which provides access to consolidated, block-level data storage.
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