The Fibre Channel Systems Initiative (FCSI), formed in February 1993 by Hewlett Packard, Sun Microsystems and IBM (RISC 6000 Division), is developing Profiles to serve as high level design specifications for the development of interoperable Fibre Channel systems. Using examples from the FCSI IP and SCSI Profiles, this paper describes the structure of Profiles and their comprehensive approach to promoting interoperability, including the selection of physical layer options, signalling layer features (such as Class of Service and error recovery), and Upper Level Protocol features.
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