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Fibre Channel

Fibre Channel. Erin Keith CPE 401 Spring, 2011. Fibre Channel. Storage Area Networks Overview Functionality Format Applications References. Storage Area Networks. A dedicated storage area that can improve system performance by making storage devices available to servers

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Fibre Channel

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  1. Fibre Channel Erin Keith CPE 401 Spring, 2011

  2. Fibre Channel • Storage Area Networks • Overview • Functionality • Format • Applications • References

  3. Storage Area Networks • A dedicated storage area that can improve system performance by making storage devices available to servers • Block level storage • File systems

  4. Storage Area Networks

  5. Storage Area Networks • Include: • Email servers • Databases • High usage file servers • Transactionally accessed data that requires high-speed block-level access to the hard drives

  6. Storage Area Network • Benefits: • Simplifies administration • Flexibility • Boot servers from SAN • Easy replacement of faulty servers • Better disaster recovery • Fibre Channel

  7. Fibre Channel Overview • Began 1988 to replace the HIPPI system • A GB speed network technology primarily used for storage networks • Uses optical fiber, coaxial cable, twisted pair

  8. Fibre Channel Functionality • Ports • Not necessarily hardware port • Disk storage • Host bus adapter • World Wide Name (WWN) • Switch • Compatible with protocol

  9. Fibre Channel Functionality • Topologies (and protocols) • Point – 2 – point • Arbitrated Loop • Switched Fabric • Switches manage state • Traffic between ports • Port failure isolated • Pairs communicate simultaneously

  10. Fibre Channel Format • Layers • FC4 – Protocol Mapping Layer • IP or Small Computer System Interface (SCSI) encapsulated by a protocol data unit

  11. Fibre Channel Format • Layers • FC3 – Common Services Layer • Could eventually implement encryption or RAID

  12. Fibre Channel Format • Layers • FC2 – Network Layer • Defines main protocols • More…

  13. Fibre Channel Format • Layers • FC1 – Datalink Layer • Line coding of signals • Similar to OSI model

  14. Fibre Channel Format • Layers • FC0 – Physical Layer • Cables • Connectors • Fibre channel electrical interface • Fibre channel optical interface

  15. Fibre Channel Format • Main Protocols • Transmission word • 4 10-bit codes • Ordered set • Transmission word with K control codes and D data codes

  16. Fibre Channel Format • Main Protocols • Arbitrated Loop Physical Address

  17. Fibre Channel Format • Main Protocols • Meta-data • Primitives • 4 character transmission word with different meanings • Non-data frames • Link service, link control, and extended link service

  18. Fibre Channel Applications • Fibre Channel over IP • Internet Fibre Channel Protocol • Storage tunneling • Wraps Fibre Channel data in IP packets but maps IP addresses to individual Fibre Channel devices

  19. Fibre Channel Applications • Fibre Channel over Ethernet • Replaces FC 0 and FC1 with Ethernet • Integrate both HBAs and NICs on same adapter card

  20. References • http://en.wikipedia.org/wiki/Fibre_Channel_over_Ethernet • http://www.youtube.com/watch?v=EZWaOda8mVY • http://www.redbooks.ibm.com/redpapers/pdfs/redp4493.pdf • http://publib.boulder.ibm.com/infocenter/tivihelp/v1r1/index.jsp?topic=%2Fcom.ibm.itsmmsmunn.doc%2Fanrsgd5571.htm • http://en.wikipedia.org/wiki/Fibre_Channel_network_protocols • http://www.cisco.com/en/US/tech/tk571/tk751/tsd_technology_support_protocol_home.html • http://www.networkworld.com/details/713.html

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