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HP Tape Library Interface Manager Software User Manual

Page 129

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Glossary 129

FC-AL

An acronym for Fibre Channel Arbitrated Loop topology.

FC adapter

A printed circuit assembly that translates data between the FC host

processor's internal bus and the FC link. This is also known as an HBA, or

Host Bus Adapter.

FC device

A device that uses Fibre Channel communications.

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.

FC-SW

An acronym for Fibre Channel switched topology. The highest performance

Fibre Channel fabric, providing a choice of multiple path routings between

pairs of F-ports.

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)

A switched protocol that allows concurrent communication among

workstations, supercomputers, mainframes, data storage devices, and other

peripherals. Fibre Channel is capable of transmitting at rates exceeding one

gigabit per second in both directions simultaneously.

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