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FC device A device that uses Fibre Channel communications.
FC port An opening at the back of the network storage router that provides a fiber optic connection
between the FC adapter and the FC host.
FC-SCSI hardware
path ID
A FC term describing a list of values showing the physical hardware path of the FC host to the
target device.
Format: Bus_Converter/Adapter_Address.Protocol_Type.Area.Port.Bus.Target.LUN
Example: 8/4.8.0.0.2.4.0
fiber A fiber optic cable made from thin strands of glass through which data in the form of light
pulses is transmitted (LASER, LED). It is often used for high-speed transmission over medium
(200m) to long (10km) distances but it can be used for short distances (<200m).
fibre A generic FC term used to cover all transmission media types specified in the Fibre Channel
Physical Layer standard (FC-PH), such as optical fiber, copper twisted pair, and copper coaxial
cable.
fibre channel (FC) Logically, the Fibre Channel is a bidirectional, full-duplex, point-to-point, serial data channel
structured for high performance data communication. Physically, the Fibre Channel is an
interconnection of multiple communication ports, called N_Ports, interconnected by a switching
network, called a fabric, a point-to-point link, or an arbitrated loop. Fibre Channel is a
generalized transport mechanism that has no protocol of its own or native input/output
command set, but can transport any existing Upper Level Protocols (ULPs) such as SCSI and IP.
fibre channel -
arbitrated loop
(FC-AL)
One of three existing Fibre Channel topologies, in which 2 to 126 devices are interconnected
serially in a single loop circuit. The arbitrated loop topology supports all classes of service and
guarantees in order delivery of frames when the source and destination are on the same loop.
fibre channel
protocol for SCSI
(FCP)
FCP defines a Fibre Channel mapping layer (FC-4) that uses FC-PH services to transmit SCSI
command, data, and status information between a SCSI initiator and a SCSI target. Using FCP
enables transmission and receipt of SCSI commands, data and status, across the Fibre Channel
using the standard Fibre Channel frame and sequence formats.
frame The smallest, indivisible unit of information transfer used by Fibre Channel. Frames are used
for transferring data associated with a sequence. Frame size depends on the hardware
implementation and is independent of the ULP or the application software.
ftp File Transfer Protocol
gigabit interface
connector (GBIC)
A physical component that manages the functions of the FC-0 layer, which is the physical
characteristic of the media and interface, including drivers, transceivers, connectors, and
cables. Mounts on a FC adapter card and connects the network storage router to a FC host.
Also referred to as a Physical Link Module (PLM).
hardware path See FC-SCSI Hardware Path ID.
host bus adapter
(HBA)
See FC Adapter.
HVD High Voltage Differential
ID Numerical identifier
indexed addressing A menu name. It allows for generic Fibre Channel host bus adapters to access SCSI devices
attached to the network storage router using a table which is indexed by sequential LUN
values.