TS/MP 2.5 System Management Manual

request through the PATHCOM interface. A management application can also interact with
subsystems other than the Pathway subsystem. Management applications use the Subsystem
Programmatic Interface (SPI) to send commands to subsystems and the Event Management Service
(EMS) to receive notification of significant events.
Message Section A section in the Data Division of a SCREEN COBOL source program that describes the data type,
size, and relative position (sequence) of each field in a message template. This section also
defines the editing and conversion that must be performed on each field. See also message-oriented
requestor.
message-oriented
requestor
A SCREEN COBOL requestor that sends data from working storage to a device (or to a front-end
process that controls a device) and receives data from the device or process into working storage
by way of Message Section templates. SCREEN COBOL requestors that use the intelligent device
support (IDS) facility are message-oriented. These requestors use SEND MESSAGE statements
and their REPLY clauses in the Procedure Division to interact with the intelligent devices or front-end
processes. See also screen-oriented requestor.
mixed data item A data item that contains both single-byte and double-byte characters; in a COBOL or SCREEN
COBOL program, these data items are declared as PIC X.
modified data tag
(MDT)
In SCREEN COBOL, a bit that is set or reset to indicate whether data in an associated field is to
be sent to the computer from the terminal.
multithreaded A programming model that provides more than one thread of control within a program.
Multithreading allows multiple sequential processing tasks to be executed concurrently within a
process: for example, a terminal control process (TCP). See also thread and single-threaded.
native System/T
client
In the NonStop TUXEDO environment, a client program that executes in the Open System Services
(OSS) environment and communicates directly with System/T. An example of this type of client
is the Pathway translation server for the NonStop TUXEDO system. Also called a NonStop TUXEDO
native client.
nested server A server that acts as a requestor by sending requests to other servers. In the Pathway environment,
such requests are made by calls to Pathsend procedures.
nld utility A utility that collects, links, and modifies code and data blocks from one or more object files to
produce a target TNS/R native object file.
no-early-reply rule The rule that states that when a server process reads a request message, it must completely process
the request before it replies to it.
node A Tandem NonStop system that is part of an Expand network. The name of the node, also called
the system name, is the first of four parts of a file name in the Guardian environment. See also
Expand networking software.
nondedicated
device
A term formerly used for a terminal or other input/output device on which a Pathway application
could be started from PATHCOM with a RUN PROGRAM command. The RUN PROGRAM command
results in the creation of a temporary TERM object to control the terminal. (No new term replaces
this term; instead, the manual text now refers to such devices as those associated with temporary
TERM objects.) See also dedicated device and temporary TERM object.
noninteractive
mode
An operating mode in which commands are entered through a command file.
NonStop Kernel See Tandem NonStop Kernel.
NonStop
processing
On Tandem NonStop systems, processing characterized by continued operation even when a
component fails, when equipment is being repaired or replaced, or while new processors or
peripheral devices are being added to the system. In the Guardian environment, NonStop
processing is provided by means of fault tolerance and process pairs.
NonStop SQL/MP The Tandem relational database management system that promotes efficient online access to
large distributed databases. See also Structured Query Language (SQL) and Enscribe database
record manager.
NonStop
Transaction
Manager/MP
(NonStop TM/MP)
A Tandem software product that provides transaction management, transaction protection, and
database consistency in online transaction processing (OLTP) environments. It gives full protection
to transactions that access NonStop SQL/MP and Enscribe databases, as well as recovery
capabilities for transactions, online disk volumes, and entire databases. The component of NonStop
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