NonStop S-Series Server Description Manual (G06.24+)

Glossary
HP NonStop S-Series Server Description Manual—520331-003
Glossary-72
Peripheral Utility Program (PUP)
Peripheral enclosures are not part of the set of system enclosures. Contrast with
system enclosure.
Peripheral Utility Program (PUP). A utility used in D-series and earlier release version
updates (RVUs) to manage disks and other peripheral devices. In G-series RVUs,
similar functions are performed by the Subsystem Control Facility (SCF).
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 count. The number of times the $ZPM persistence manager process will
restart a generic process that has been terminated abnormally. A generic process with
an AUTORESTART value of 10 (the maximum) is said to have a persistence count of
10. See also persistence.
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
release version updates (RVUs) and manages their persistence.
persistent configuration. A configuration that remains the same from one system load to
another.
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.
phase-loss detector/contactor (PDC). Equipment used to detect the interruption (for 50
milliseconds or longer) or the complete loss of one or more phases of power to
computer equipment. Upon detection of a phase dropout, the contactor shuts down all
input phases to the system equipment, thereby allowing smooth system shutdown and
recovery.
physical interface (PIF). The hardware components that connect a system node to a
network.
physical link interfaces. Communications standards defined by standards organizations.
The following physical link interfaces are supported for the ServerNet wide area
network (SWAN) concentrator: RS-232, RS-442, RS-449, V.35, and X.21.
Physical view. One of several views of a server available in the view pane of the
Management window of the OSM Service Connection, TSM Service Application, and
OSM and TSM Low-Level Link. A Physical view of a server is a view of all the
enclosures and is intended to represent the actual floor plan at the site. A Physical
view of an enclosure is a visual representation of the physical placement of supported
resources inside the enclosure. See also Connection view.
PIB. See power interface board (PIB).