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Glossary
286 Web Tools Version 3.1.x/4.1.x User Guide
GBIC
Gigabit interface converter. A removable serial transceiver module that allows gigabaud
physical-level transport for Fibre Channel and gigabit Ethernet. Typically refers only to the
SC-form factor transceivers.
See also SFP.
Gbps
Gigabits per second (1,062,500,000 bits/second).
GBps
Gigabytes per second (1,062,500,000 bytes/second).
Half-duplex
A mode of communication that allows a port to either transmit or receive frames at any time, but
not simultaneously (with the exception of link control frames, which can be transmitted at any
time).
See also full-duplex.
Hard Address
The AL_PA that an NL_Port attempts to acquire during loop initialization.
Hardware Translative Mode
A method for achieving address translation. The following two hardware translative modes are
available to a QuickLoop-enabled switch:
■ Standard Translative Mode: Allows public devices to communicate with private devices that
are directly connected to the fabric.
■ QuickLoop Mode: Allows initiator devices to communicate with private or public devices that
are not in the same loop.
HBA
Host Bus Adapter. The interface card between a server or workstation bus and the Fibre Channel
network.
High Availability
An attribute of equipment that identifies it as being capable of conducting customer operations well
in excess of 99% of the time. Typically High Availability is identified by the number of nines in
that percentage. “Five Nines” means the equipment is rated as being capable of conducting
customer operations 99.999% of the time without failure.