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A Fibre Channel protocol used with arbitrated loop topology.
Fibre Channel interconnect topology in which all ports are connected in
a common loop. Before transmitting data, an arbitrated loop port must
participate in arbitration to gain control of the loop.
Based on the promise of significantly lower total cost of ownership
when multiple servers share a centralized pool of storage, the industry
is now preparing to broaden the application and scope of the SAN to
include more complex implementations necessitating the addition of
switching. As mainstream operating systems and storage devices support
multi-server applications, these servers will require concurrent access
to the shared storage resources. The switch provides this concurrency as
well as necessary services such as "zoning" – or the ability
to segment the network and bind each server to specific disk or tape
storage resources. However, although the desire to introduce switching
to SANs is quite clear, it is not without its challenges.
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