TS/MP System Management Manual (H06.05+, J06.03+)

Glossary
HP NonStop TS/MP System Management Manual—541819-007
Glossary-25
Structured Query Language (SQL)
Structured Query Language (SQL). A relational database language used to define,
manipulate, and control databases.
subsystem. In the context of the Subsystem Programmatic Interface (SPI) and the Event
Management Service (EMS), a process or collection of processes that gives users
access to a set of related resources or services. A subsystem typically controls a
cohesive set of objects. The Pathway subsystem includes PATHMON processes,
TCPs, and all other components of the PATHMON environment.
subsystem ID. In management applications, a data structure that uniquely identifies a
subsystem. The subsystem ID is specified in SPI commands to identify the target
subsystem, and in EMS event messages to identify the source of the event message.
The Pathway subsystem ID applies to all components of the PATHMON environment,
including PATHMON processes and TCPs.
Subsystem Programmatic Interface (SPI). A set of Guardian procedures, message
formats, and definition files that allows management applications to communicate
directly with subsystem processes, such as the PATHMON process, for configuration
and control of objects and for event management.
subtype 30 process. A nonprivileged process that simulates terminals and communications
devices.
subvolume. A related set of files, as defined by the user, within the Guardian environment.
The name of a subvolume is the third of the four parts of a file name.
swap file. A temporary file created by a process for temporary storage: for example, by the
Kernel Managed Swap Facility (KMSF) on behalf of a TCP for temporary storage of
terminal context.
syncdepth. A parameter to Guardian procedure calls that sets the maximum number of
operations or messages that a process is allowed to queue before action must be
taken or a reply must be performed.
sync ID. A value used in the Guardian environment to determine whether an I/O operation
has finished. In active backup programming, a file’s sync ID is used to prevent the
backup process from repeating I/O operations that have already been completed by
the primary process.
system name. (1) The first of the four parts of a Guardian file name; also called a node
name. (2) A name that identifies the Tandem system on which a PATHMON process is
running. In SCREEN COBOL programs, this name is given in SEND statements. (3) A
SCREEN COBOL word that identifies part of the Tandem operating environment; a
name can be associated with function keys or terminal display attributes.
System/T. The transaction monitor for a NonStop TUXEDO system. See also NonStop
TUXEDO application.
TACL. See Tandem Advanced Command Language (TACL).