TS/MP 2.5 System Management Manual

process pair A fault-tolerant arrangement of processes in the Guardian environment, whereby two processes
in separate processors share the same name and execute identical code. One process functions
as the primary process and the other functions as the backup process. The two processes are
kept in sync through checkpoint messages sent from the primary to the backup process. If the
primary process fails, the backup process is notified that it is now the primary, and it resumes
the application work from the last valid checkpoint message.
process type An attribute of a server class indicating whether the server processes in that server class are
Guardian processes or OSS processes. See also process.
product A tool provided by Tandem that allows users to develop simple data management applications
without using a conventional programming language. The product can generate SCREEN COBOL
programs for use with Enscribe databases.
program file An executable object file. See also object file.
PROGRAM object A template for creating and starting temporary TERM objects. See also temporary TERM object.
pseudo Pathsend
procedure
In the Extended General Device Support (GDSX) software, one of the TSCODE-supported
procedures that have Pathsend procedure counterparts.
pseudocode file A file containing compiled code that is interpreted by software instead of being executed by the
hardware. The SCREEN COBOL compiler produces pseudocode to be interpreted by the TCP.
See also object file.
pTAL A machine-independent systems programming language based on TAL. The pTAL language
excludes architecture-specific TAL constructs and includes new constructs that replace the
architecture-specific constructs. See also Transaction Application Language (TAL).
PTP application A collection of software components that perform transaction processing for CICS applications
in the Guardian environment on Tandem NonStop systems. See also Customer Information Control
System (CICS) and Parallel Transaction Processing (PTP) Services for the CICS API product.
PTP server A server in the PTP transaction processing environment. See also Customer Information Control
System (CICS), PTP transaction processing environment, and Parallel Transaction Processing (PTP)
Services for the CICS API product.
PTP Services
product
See Parallel Transaction Processing (PTP) Services for the CICS API product.
PTP transaction
processing
environment
An environment that supports the CICS/ESA 3.3 command-level application program interface
(API) and provides run-time services for CICS applications in the Guardian environment. The PTP
environment provides the Tandem fundamentals for CICS applications. See also Customer
Information Control System (CICS), Parallel Transaction Processing (PTP) Services for the CICS
API product, and PTP application.
reduced
instruction-set
computing (RISC)
A processor architecture based on a relatively small and simple instruction set, a large number
of general-purpose registers, and an optimized instruction pipeline that supports high-performance
instruction execution. See also complex instruction-set computing (CISC).
relative pathname An OSS pathname that does not begin with a slash (/) character. A relative pathname is resolved
beginning with the current working directory. See also OSS pathname, absolute pathname, and
current working directory.
Remote Duplicate
Database Facility
(RDF)
The Tandem software product that assists in disaster recovery for OLTP production databases,
monitors database updates audited by the TMF subsystem on a primary system, and applies those
updates to a copy of the database on a remote system.
Remote Server Call
(RSC)
A Tandem software product that facilitates client/server computing, allowing personal computer
(PC) or workstation applications running under Microsoft Windows software or the MS-DOS or
OS/2 operating system to access Pathway server classes and Guardian processes. Transactions
are transmitted from the PC or workstation application (the client) to a Pathway application running
on a Tandem NonStop system (the server) by means of a supported communications protocol,
such as NETBIOS, TCP/IP, or an asynchronous connection.
reply message The part of an interprocess communication message that is formatted by a server and returned
to the original requestor. The message contains the results of the server’s work. See also request
message.
reply translation
header
A group of header fields that the Pathway translation server for the NonStop TUXEDO system
inserts at the beginning of each reply message it relays from the application service to a SCREEN
340 Glossary