McDATA Eclipse 2640 SAN, Administration And Configuration Manual

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Glossary g-21
Glossary
fast/wide small
computer system
interface
Fast/wide SCSI. Fast and wide are relative terms in comparing
previous SCSI standards and products. Fast, as defined in SCSI-2,
refers to a maximum synchronous transfer rate of 10 MHz. Wide
refers to a data path of 16 bits.
fault tolerance
The ability of a system to respond gracefully to an unexpected
hardware or software failure. There are many levels of fault
tolerance, the lowest being the ability to continue operation in the
event of a power failure. Many fault-tolerant computer systems
mirror all operations.
FC
See
Fibre Channel .
FC-0
The Fibre Channel layer that describes the physical link between two
ports, including the transmission media, transmitter and receiver
circuitry, and interfaces
(D)
. This consists of a pair of either optical
fiber or electrical cables (link media) along with transceiver circuitry
which work together to convert a stream of bits at one end of the link
to a stream of bits at the other end.
FC-1
Middle layer of the Fibre Channel physical and signaling interface
(FC-PH) standard, defining the 8B/10B encoding/decoding and
transmission protocol.
FC-2
The Fibre Channel layer that specifies the signaling protocol, rules,
and mechanisms required to transfer data blocks. The FC-2 layer is
very complex and provides different classes of service, packetization,
sequencing, error detection, segmentation, and reassembly of
transmitted data
(D)
.
FC-3
The Fibre Channel layer that provides a set of services common
across multiple node ports (N_Ports) of a Fibre Channel node. The
services are not commonly used and are essentially reserved for Fibre
Channel architecture expansion
(D)
.
FC-4
The Fibre Channel layer that provides mapping of Fibre Channel
capabilities to upper level protocols (ULP), including Internet
protocol (IP) and small computer system interface (SCSI)
(D)
.
FCA See
Fibre Channel Association .
FC-AL See
Fibre Channel arbitrated loop .
FC adapter
Fibre Channel adapter.
See
host bus adapter .