Availability Guide for Problem Management

Glossary
Availability Guide for Problem Management–125509
Glossary-8
servers
servers. The programs that receive messages from requesters, perform specified operations
(for example, database inquiries, database updates, or numerical calculations), and
return reply messages to requesters.
SNA. See Systems Network Architecture; IBM’s networking architecture.
SNAX product family. The product family that consists of those Tandem software products
that provide access to IBM Systems Network Architecture (SNA) networks.
SPI. See Subsystem Programmatic Interface (SPI).
SPOOLCOM. A utility program that helps operations personnel monitor and maintain the
spooler and spooler components.
spooler. A set of programs that acts as an interface between users (and user applications) and
the print devices of a system.
SQL. See Structured Query Language.
SQL object. An entity that is created, manipulated, or dropped by SQL statements and that is
described in an SQL catalog. SQL objects include tables, views, indexes, partitions,
columns, and catalogs.
Structured Query Language (SQL). A relational database language used to define,
manipulate, and control databases. SQL statements can be embedded in programs or
entered as commands through SQLCI.
subdevice. A recipient of requests within a subsystem. A subdevice often corresponds to a
real external entity.
Subsystem Control Facility (SCF). A management application within the Distributed
Systems Management (DSM) architecture. SCF can be used to change the
characteristics of communications lines, devices, and subdevices for most
communications products without having to take your NonStop system down.
Subsystem Control Point (SCP). The management process for certain communications
subsystems.
Subsystem Programmatic Interface (SPI). A set of procedures for building and decoding
commands, responses, and event messages.
super-group user (255, n). A user ID that allows users to execute some potentially
destructive commands. The super-group user is provided for operators who perform
system operations tasks, such as controlling the status of peripherals and other system
components.
super ID (255,255). A user ID that allows users to do anything on the system. Users with the
super ID can access all data and devices.