QIO Configuration and Management Manual

Glossary
QIO Configuration and Management Manual—424717-008
Glossary-9
Pathway
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.
Pathway. An HP NonStop™ application that configures and manages online transaction
applications.
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.
persistence manager process. The $ZPM process that is started and managed by the
$ZCNF configuration utility process and that starts generic processes in G-series and
H-series release version updates (RVUs) and manages their persistence.
persistent process. A process that must always be either waiting, ready, or executing.
Persistent processes are usually controlled by a monitor process that checks on the
status of persistent processes and restarts them if necessary.
PMF CRU. See processor multifunction (PMF) CRU.
POOL object type. The Subsystem Control Facility (SCF) object type for storage pools.
primary processor. The processor that is designated as owning the ServerNet addressable
controller (SAC) connected to separate processors running the NonStop OS. The
primary processor is the processor that has direct control over the SAC. Contrast with
backup processor.
process. (1) A program that has been submitted to the NonStop OS for execution, or a
program that is currently running in the computer. (2) An address space, a single
thread of control that executes within that address space, and the system resources
required by that thread of control.
processor. (1) A functional unit of a computer that reads program instructions, moves data
between processor memory and the input/output controllers, and performs arithmetic
operations. A processor is sometimes referred to as a central processing unit (CPU),
but the HP NonStop™ servers have multiple cooperating processors rather than a
single CPU. (2) One or more computer chips, typically mounted on a logic board, that
are designed to perform data processing or to manage a particular aspect of computer
operations.
processor multifunction (PMF) CRU. (1) An HP NonStop™ S-series customer-
replaceable unit (CRU) that contains a power supply, service processor (SP),
ServerNet router 1, Ethernet controller, three ServerNet addressable controllers
(SACs), and a processor and memory system in a single unit. The PMF CRU consists
of three subassemblies: the processor and memory board (PMB), the multifunction I/O
board (MFIOB), and the power supply subassembly. (2) A collective term for both PMF
CRUs and PMF 2 CRUs when a distinction between the two types of CRUs is not
required.