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Upgrading and Repairing Servers by Barrie Sosinsky, Mark Edward Soper, Scott Mueller

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Chapter 12 Storage Area Networks

A storage area network (SAN) is a network of managed, shared, and distributed storage assets—a network of storage servers, if you will. You might infer that a SAN must have its own dedicated network, and for the most part, you would be correct, at least historically. As described in the Chapter 11, "Disk Subsystems," SANs are built with Fibre Channel switches and hubs, and the nodes are linked with either fiber-optic or coaxial cabling.

That storage network interfaces to a local area network (LAN) of servers and clients, where each server and client on the LAN connects to the SAN either through a file server or with a connection to the SAN itself. As Ethernet has gotten faster, and as the storage industry has ...

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