Compaq StorageWorks HSG60 ACS Solution Software V8.6 for Compaq Tru64 UNIX Installation and Configuration Guide

Glossary
This glossary defines terms pertaining to the ACS solution software. It is not a comprehensive glossary
of computer terms.
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.
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.
arbitrated loop
physical address
Abbreviated AL_PA. A one-byte value used to identify a port in an Arbitrated
Loop topology.
array controller See controller.
array controller
software
Abbreviated ACS. Software contained on a removable ROM program card
that provides the operating system for the array controller.
asynchronous Pertaining to events that are scheduled as the result of a signal asking for the
event; pertaining to that which is without any specified time relation. See also
synchronous.
autospare A controller feature that automatically replaces a failed disk drive. To aid the
controller in automatically replacing failed disk drives, you can enable the
AUTOSPARE switch for the failedset causing physically replaced disk drives
to be automatically placed into the spareset. Also called “autonewspare.”
bad block A data block that contains a physical defect.