ATM Configuration and Management Manual

Glossary
ATM Configuration and Management Manual—522307-003
Glossary-15
operating system (OS)
operating system (OS). An organized collection of software that controls the basic
operations of a computer system. The operating system on NonStop servers is the
NonStop Kernel.
operator message. A message, intended for an operator, that describes a significant event
on a NonStop system. An operator message is the displayed-text form of an EMS
event message.
ordinary library. A dynamic-link library (DLL) or shared run-time library (SRL) that is not
public. See ordinary dynamic-link library (ordinary DLL).
ordinary dynamic-link library (ordinary DLL). A dynamic-link library (DLL) or shared
run-time library (SRL) that is not public; the code file is found at run time and can be
provided by the user. Contrast with public dynamic-link library (public DLL).
OSM. See HP Open System Management (OSM) Interface.
Parallel Library TCP/IP. An HP product that provides increased performance and scalability
over conventional Transmission Control Protocol/Internet Protocol (TCP/IP). Parallel
Library TCP/IP coexists with conventional TCP/IP on HP NonStop™ S-series systems
and supports Ethernet 4 ServerNet adapters (E4SAs), Fast Ethernet ServerNet
adapters (FESAs), Gigabit Ethernet ServerNet adapters (GESAs), and ServerNet wide
area network (SWAN) concentrators. See also HP NonStop TCP/IP.
pathname. In the Open System Services (OSS) file system and Network File System
(NFS), the string of characters that uniquely identifies a file within its file system. A
pathname can be either relative or absolute. See also ISO/IEC IS 9945-1:1990
(ANSI/IEEE Std. 1003.1-1990 or POSIX.1), Clause 2.2.2.57.
peripheral enclosure. An enclosure that contains components related to one or more
peripherals. The 519x tape subsystem is an example of a peripheral enclosure.
Peripheral enclosures are not part of the set of system enclosures. Contrast with
system enclosure.
permanent virtual circuit (PVC). This is a link with static route defined in advance, usually
by manual setup.
persistence. For the Subsystem Control Facility (SCF), the capability of a generic process
to restart automatically if it was stopped abnormally. You configure this capability by
specifying a nonzero AUTORESTART value in an ADD command.
PMF CRU. See processor multifunction (PMF) CRU.
port. (1) A data channel that connects to other devices or computers. (2) A connector to
which a cable can be attached. The system transmits and receives data or requests
through ports on ServerNet adapters and processor multifunction customer-
replaceable units (PMF CRUs). A port is also called a connector. (3) The entrance or
physical access point (such as a connector) to a computer, multiplexer, device, or
network where signals are supplied, extracted, or observed.