What is SAN topology?

Asked 31-May-2022
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The topology of a storage area network (SAN) refers to the arrangement or configuration of SANs. A fibre channel fabric topology, which is an infrastructure specifically designed to manage storage communications, is commonly used in SANs. It provides faster and more reliable access than higher-level protocols used in network-attached storage (NAS).

A fabric is conceptually equivalent to a network segment in a local area network (LAN). A typical fibre channel SAN fabric is made up of several fibre channel switches.

The standard SAN design includes the following elements:
  • Edge devices on a network
  • Switches in the core of the network
  • The cabling that connects them all
  • A tiered, core-edge SAN topology is recommended for optimising functionality, administration, and scalability. This strategy provides excellent performance while avoiding unnecessary interconnections.


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