NonStop System Glossary

planned outage

Time during which a computer system is not capable of doing useful work because of a planned

interruption. A planned outage can be time when the system or user application is shut down to

allow for servicing, upgrades, backup, or general maintenance.

planner

1. The Distributed Systems Management/Software Configuration Manager (DSM/SCM) user who

is responsible for planning and managing new software revisions. The planner uses the DSM/SCM

Planner Interface to carry out these functions.

2. A person who participates in planning a new NonStop system.

Planner Interface

A graphical user interface (GUI) to the Distributed Systems Management/Software Configuration

Manager (DSM/SCM) that runs on the host system. It provides an interface to all the host DSM/SCM

planner functions.

PLD

Programmable logic device.

plug-in card (PIC)

A replaceable component that provides a unique function when installed in a customer-replaceable

unit (CRU) or field-replaceable unit (FRU). For example, PICs for modular ServerNet expansion

boards (MSEBs) and I/O multifunction (IOMF) 2 CRUs provide a choice of connection media for

attaching ServerNet cables.

See product module (PM).

PMB

See processor and memory board (PMB).

PMCU

See power monitor and control unit (PMCU).

PMF CRU

See processor multifunction (PMF) CRU.

PMF 2 CRU

See processor multifunction (PMF) 2 CRU.

pNA+

The support for the Transmission Control Protocol/Internet Protocol (TCP/IP) layers and the Ethernet

interface provided by Integrated Systems Inc. as part of the Portable Silicon Operating System

(pSOS) system product. pNA+ is provided as part of the wide area network (WAN) architecture

in each ServerNet wide area network (SWAN) concentrator communications line interface processor

(CLIP).

146