Specifications

GL–1
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
Glossary
This glossary defines terms pertaining to the HSG80 Fibre Channel array controller.
It is not a comprehensive glossary of computer terms.
8B/10B A type of byte encoding and decoding to reduce errors in data transmission
patented by the IBM Corporation. This process of encoding and decoding data for
transmission has been adopted by ANSI.
adapter A device that converts the protocol and hardware interface of one bus type into
another without changing the function of the bus.
ACS
See array controller software.
AL_PA
See arbitrated loop physical address.
alias address An AL_PA value recognized by an Arbitrated Loop port in addition to its assigned
AL_PA.
ANSI Pronounced “ann-see.” Acronym for the American National Standards Institute. An
organization who develops standards used voluntarily by many manufacturers
within the USA. ANSI is not a government agency.
arbitrate A process of selecting one L_Port from a collection of several ports that request
use of the arbitrated loop concurrently.
arbitrated loop A loop type of topology where two or more ports can be interconnected, but only
two ports at a time can communicate.
arbitrated loop
physical address
Abbreviated AL_PA. A one-byte value used to identify a port in an Arbitrated Loop
topology. The AL_PA value corresponds to bits 7:0 of the 24-bit Native Address
Indentifier.
array controller
See controller.