Fibre Channel

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Fibre Channel or its short name of FC is known as a speed network technology measured in gigabit. Fibre Channel is mainly used in the supercomputer field. However nowadays it has become the connection type for storage area networks or known as SAN in the enterprise storage in a more standardized way. Fibre Channel is used for both fiber optic cables and twisted pair copper wire. International Committee for Information Technology Standards or its short form of INCITS is responsible in standardizing the Fibre Channel. INCITS fall under American National Standards Institute or ANSI.

Fibre Channel is divided to two classes. First class is directors. Directors class usually offers a port count which is high in a modular slot based. Director class does not have any single point of failure or in other words it has high availability. The second class is switches class. This class is smaller compared to Directors class with less redundant devices. It has fixed configuration which is semi modular most of the times.

In Fibre Channel homogeneous is known as a fabric that contains the entire one vendor. This means it is referred as operating in native mode which can allow a vendor to add or change any proprietary features. Heterogeneous is known as multiple switch vendors that are used in the same fabric. In heterogeneous, switches can achieve adjacency when all the switches are in a proper interoperability modes. Heterogeneous are known as open fabric mode where a vendors switch need to disable the proprietary features in order to comply with the Fibre Channel standard.

The Fibre Channel is available in all major open systems, buses and computer architectures. These include SBus and PCI. The are some operating systems that are dependent.

Hardware signals examination is needed when troubleshooting or developing Fibre Channel bus. This is useful in finding the real problems. In order to collect, analyze, decode and store signals, logic analyzers and bus analyzers are used so that users can view high speed waveforms.

One of the ports that is defined in Fibre Channel is N port. N port is the node port that is used for FC-P2P or FC-SW topologies.


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