NonStop S-Series System Expansion and Reduction Guide

Glossary
G-Series Common Glossary
Glossary-6
authentication attributes
authentication attributes. Security attributes of a process that do not change unless a
successful reauthentication occurs or the super ID changes them. For Open System
Services (OSS) processes, the authentication attributes include the login name, real
user ID, real group ID, authentication system (node name), and group list.
authorization attributes. Security attributes of a process that can change through use of
functions such as
setuid() (or of Guardian procedures such as
PROCESS_CREATE_) without reauthentication. For Open System Services (OSS)
processes, the authorization attributes include the effective user ID, saved-set user ID,
saved-set group ID, user audit flags, and effective user name.
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 configuration of the OSM or TSM Notification Director.
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.
AXCEL. The command used to invoke the Accelerator on a TNS/R system.
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