HSG80 ACS Solution Software Version 8.7 for Compaq Tru64 UNIX Installation and Configuration Guide

Glossary
–9HSG80 ACS Solution Software Version 8.7 for Compaq Tru64 UNIX Installation and
Configuration Guide
Glossary–9
FRU
Field replaceable unit. A hardware component that can be replaced at
the customer location by service personnel or qualified customer
service personnel.
FRUTIL
Field Replacement utility.
full duplex (n)
A communications system in which there is a capability for 2-way
transmission and acceptance between two sites at the same time.
full duplex (adj)
Pertaining to a communications method in which data can be
transmitted and received at the same time.
FWD SCSI
A fast, wide, differential SCSI bus with a maximum 16-bit data transfer
rate of 20 MB/s. See also SCSI and FD SCSI.
GBIC
Gigabit Interface Converter. GBICs convert electrical signals to optical
signals (and vice-versa.) They are inserted into the ports of the Fibre
Channel switch and hold the Fibre Channel cables.
GLM
Gigabit link module
giga
A prefix indicating a billion (10
9
) units, as in gigabaud or gigabyte.
gigabaud
An encoded bit transmission rate of one billion (10
9
) bits per second.
gigabyte
A value normally associated with a disk drives storage capacity,
meaning a billion (10
9
) bytes. The decimal value 1024 is usually used
for one thousand.
half-duplex (adj)
Pertaining to a communications system in which data can be either
transmitted or received but only in one direction at one time.
hard address
The AL_PA which an NL_Port attempts to acquire during loop
initialization.
heterogeneous
host support
Also called noncooperating host support.
HIPPI–FC
Fibre Channel over HIPPI
host
The primary or controlling computer to which a storage subsystem is
attached.