NonStop S-Series Hardware Installation and FastPath Guide (G06.25+)

Glossary
HP NonStop S-Series Hardware Installation and FastPath Guide—529443-001
Glossary-80
Point-to-Point Protocol (PPP)
Point-to-Point Protocol (PPP). A data communications protocol that provides a standard
method of encapsulating Transmission Control Protocol/Internet Protocol (TCP/IP)
information over point-to-point links. OSM and TSM use PPP to provide TCP/IP
communication over a dial-up connection.
PON. Power on.
POOL object type. The Subsystem Control Facility (SCF) object type for storage pools.
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 (PMF) customer-
replaceable units (CRUs). (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.
portable application. An application that can execute on a wide range of hardware
systems from multiple manufacturers. A portable application is a program that can be
moved with little or no change in its source code from another manufacturer’s system
to an HP NonStop™ system.
portable filename character set. The set of characters that includes the Roman uppercase
and lowercase letters, the Arabic numerals, the period, the underscore, and the
hyphen. The hyphen cannot be the first character of a portable filename.
portable pathname character set. The set of characters that includes the Roman
uppercase and lowercase letters, the Arabic numerals, the period, the underscore, the
slash (/), and the hyphen. The hyphen cannot be the first character of a portable
pathname.
Portable Silicon Operating System (pSOS) system product. A product of Integrated
Systems Inc. that provides support for industry-standard communications protocols
based on the UNIX operating system. It is used as a compact multitasking kernel
operating system for PowerPCs and similar systems.
position ID. A character that indicates the position an HP NonStop™ Cluster Switch
occupies in a network topology. The position ID is a component of the two-character
cluster switch name. The cluster switch name includes an external fabric ID (X or Y) as
the first character and a position ID as the second character. For example, the cluster
switch name X3 indicates that the cluster switch serves the external ServerNet X fabric
and occupies position 3 in the topology. Supported values for position IDs are 1
through 9 or A through Z. Currently supported topologies (star, split-star, and tri-star)
use position IDs 1, 2, and 3.
position-independent code (PIC). Executable program or library code that is designed to
be loaded and executed at any virtual memory address, without any modification.
Addresses that can be modified by the loader do not appear in PIC code, only in data
that can be modified by the loader. See also dynamic-link library (DLL).