SAN Switch Whitepapers and Ebooks

SAN switches are the core component of Switched Fabric Topology of Storage Area Network (SAN).  Unlike Hub which is used in FC-AL (Fiber Channel Arbitrated Loop), switch adds intelligence in the topology.  Switch forwards frames directly from HBA (Initiators) to LUNs on the storage array (Targets) creating dedicated paths between nodes.  In switched fabric topology, switches are connected to Servers, storage and to other SAN switches forming complex fabric. Switches range from low port count (16 ports) entry level to more scalable higher port count (24 to 56 ports) to highly scalable and managed modular core switches connecting multiple fabrics in tiered structure. SAN Switches are segmented in logical components called Zones to increase security and performance. Switches provide more scalability, performance, redundancy and manageability at higher cost.

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