Fast Ethernet Adapter Installation and Support Guide

Glossary
Fast Ethernet Adapter Installation and Support Guide—425685-003
Glossary-6
authorization key
authorization key. A password required for logging on to a modem. If you plan to allow
dial-outs to a service provider, you must specify the authorization key of the service
provider’s modem during Compaq TSM configuration.
automated cartridge subsystem (ACS). A type of tape library. Also known as automated
cartridge system.
Automated Data Processing (ADP). The term used in the FIPS PUB 94 document to refer
to computerized data processing equipment that is installed inside a computer room.
automatic cartridge loader (ACL). A device that stores multiple cartridge tapes and loads
them automatically, one at a time, into a tape drive.
automatic configuration. The automatic assignment of magnetic disk attributes to an
internal disk drive when it is inserted into a slot. Also known as “plug and play.”
averaging. A measurement method for determining the average value of alternating voltage
and current waveforms. The averaging method involves sampling a waveform and
averaging the samples over the period of one cycle.
AWAN. See asynchronous wide area network (AWAN) servers.
back-end board (BEB). A circuit board that translates fiber-optic signals from a 3216
controller or 6760 ServerNet device adapter into small computer system interface
(SCSI) commands and information for a tape drive. The BEB is housed in a cage-like
sheet-metal enclosure and plugs into one of the 50-pin SCSI ports on the back of a
tape drive customer-replaceable unit (CRU).
background process. In the Open System Services (OSS) environment, a process that
belongs to a background process group.
background process group. In the Open System Services (OSS) environment, a process
group that is both:
•
Not a foreground process group
•
A member of a session that has a connection with a controlling terminal
backout. The Distributed Systems Management/Software Configuration Manager
(DSM/SCM) action of making the last configuration applied to the target system
inaccessible and replacing it with the previous configuration.
backplane. A board that has connectors, on one or both sides of the board, into which
circuit board assemblies plug. Backplanes are located behind card cages.
BACKUP. A utility for the HP NonStop™ servers that creates a backup copy of one or more
disk files on magnetic tape. See also RESTORE.
backup processor. A processor running the HP NonStop™ Kernel operating system that
communicates with the primary processor, allowing the processors to remain