TS/MP 2.5 System Management Manual

the command by gathering and returning statistical information about their links to the specified
server class.
PATHCOM allows you to enter commands interactively through a terminal or from a command file
or TACL script. For more information about using command files and TACL scripts, see “Starting
and Stopping a PATHMON Environment” (page 34).
Management Programming Interface
A management programming interface is a token-oriented interface based on the Subsystem
Programmatic Interface (SPI) and the Event Management Service (EMS)— part of HP’s Distributed
System Management (DSM) product. (See “Distributed Systems Management” (page 31).)
The management programming interface acts as the interface between a management application
process—(a requestor that you write)—and the PATHMON process, which acts as the server.
As shown in Figure 9 (page 31), a management application in the operations environment uses
the management programming interface to monitor and control objects in the PATHMON
environment. The management application sends commands and inquiries to processes in the
PATHMON environment through the management programming interface. The processes send
responses or event messages to the management application using the same interface.
Figure 9 Management Programming Environments
Distributed Systems Management
The Distributed Systems Management (DSM) set of products is designed to monitor and control
every element of a distributed network, including PATHMON-controlled objects in a Pathway
environment. DSM incorporates a three-part architecture:
• Operations environment
The operations environment includes your management application, which resides in the same
run-time environment as standard Guardian applications. The application can be written in
languages such as COBOL, C, TAL, and TACL.
• Management programming interface
The management programming interface provides the standard set of procedures, definitions,
and message formats required to send messages between your management application in
the operations environment and the PATHMON process in the Pathway environment. The
management programming interface includes SPI and the Event Management Service (EMS),
another DSM facility. EMS provides collection, logging, and distribution of event messages,
which are noteworthy occurrences such as state changes in objects or component failures.
The PATHMON process reports events to an EMS collector process, which logs the events in
System Management Tools 31