FC SAN

Storage area network (SAN) is a high-speed network that incorporates storage devices, network connection devices, and interfaces. SAN is a storage network for data storage. Because SAN is isolated from the LAN service network, its storage data flow will not occupy service network bandwidth. In the SAN network, all data is transmitted in a high-speed and high-bandwidth network. SAN enables direct block-level storage access to physical hardware, improving storage performance and upgrade capabilities. In the early stage, SAN used the Fibre Channel technology and therefore were referred to as local storage networks using Fiber Channel. After the iSCSI protocol was proposed, FC SAN and IP SAN were used to distinguish SANs using the iSCSI protocol from those using the Fiber Channel protocol. Fibre Channel was developed in 1988. At that time, it was used to increase the transfer bandwidth of the disk data transfer protocol to help with fast, efficient, and reliable data transfer. By the end of 1990s, FC SAN had been used extensively.

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