HP storageworks HSG80 Reference Manual page 209

Glossary
This glossary defines terms used in this guide or related to this product and is not a
comprehensive glossary of computer terms.
ACS
Array Controller Software. The software component of the HS-series array controller storage
systems. ACS executes on the controller and processes input/output requests from the host,
performing the device-level operations required to satisfy the requests.
adapter
A device that converts the protocol and hardware interface of one bus type into that of another
without changing functionality of the bus.
AL_PA
Arbitrated loop physical address. A one-byte value used to identify a port in an Arbitrated
Loop topology.
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
In Fibre Channel Technology, a serial bus configuration in which device ports are connected in
a loop. Each port has a unique loop address and it communicates with other ports on the loop
by arbitrating for loop access. Loop addresses are assigned via cooperative port
intercommunication during loop initialization, which occurs any time the device configuration
on the loop is physically changed.
arbitrated loop physical address
See AL_PA
array controller
See controller
HSG80 Array Controller V8.7 Command Line Interface Reference Guide Glossary–1