NonStop S-Series System Expansion and Reduction Guide

Glossary
G-Series Common Glossary
Glossary-19
connectivity
representation of the connectivity among components within an enclosure. See also
Physical view
.
connectivity. The ability of a system to transfer information between itself and a system
from another vendor. Other vendors use the term
connectivity to mean hardware
compatibility. See also interoperability
.
connector. See port.
console message. See operator message.
contiguous ground. An insulated grounding conductor that extends from an equipment
enclosure power receptacle to the final point of electrical service for the computer-room
equipment, whether that final point is the main service entrance or the separately
derived power source. In most instances, the final point of electrical service is an
isolating transformer installed in the computer room.
control and inquiry. The aspects of Subsystem Control Facility (SCF) object management
related to the state or configuration of an object. Such aspects include actions that
affect the state or configuration of an object, inquiries about the object, and commands
pertaining to the session environment (for example, commands that set default values
for the session).
controller. See I/O controller or ServerNet addressable controller (SAC).
controlling process. In the Open System Services (OSS) environment, the session leader
that established the connection to the controlling terminal. The session leader stops
being the controlling process when the corresponding terminal stops being the
controlling terminal.
controlling terminal. In the Open System Services (OSS) environment, a terminal that
might be associated with a session
. A session can have only one controlling terminal,
and a controlling terminal can control only one session at a time. When a session has
a controlling terminal, all the following are true:
•
Certain character sequences entered from that terminal cause signals to be sent to
all processes in the process groups of that session.
•
Certain characters entered from that terminal might receive special treatment.
•
Members of background process groups of the session are restricted from certain
kinds of access to the controlling terminal.
Coordinated Universal Time (UTC). The standard measure of time from the beginning of
the current Epoch
. UTC is sometimes called Universal Coordinated Time, CUT, or
UCT; the standard appellation is abbreviated as UTC, an arbitrary ordering of the
letters. UTC was formerly called Greenwich mean time (GMT).
core dump file. See saveabend file.