TS/MP 2.5 System Management Manual

an event log. An EMS distributor process reads the log and distributes the events to all
appropriate management applications.
• Subsystem environment
The subsystem environment includes the PATHMON process and objects. The Transaction
Management Facility (TMF), which provides transaction processing protection, also resides
in this environment.
For more information about the Distributed Systems Management set of products, see the Introduction
to Distributed Systems Management.
Advantages of the Management Programming Interface
By writing your own management application that uses the management programming interface,
you can automate tasks and add special functions not available within PATHCOM.
A management application issues the system management commands and provides a command
interface, formatting, and error handling. A management application can also interact with
subsystems outside of the Pathway environment. Thus, the management application can provide
a focal point for many different kinds of functions.
Your application might ask the PATHMON process to examine the status of a device, and then
use other subsystems to gain more information about the device, shut it down, and later restart it.
For example, you might write management applications that:
• Start PATHMON-controlled SERVER objects automatically at a specific time of day. (This
application communicates exclusively with the PATHMON process.)
• Monitor the status of TERM objects and, if a device is not running, contact the data
communications subsystems to obtain information about the communications line to which the
device is connected. (This application interacts with both the PATHMON process and the data
communications software.)
• Receive event messages for PATHMON-controlled objects and issue commands to find out
more information about why the event is being reported. (This application communicates with
both the PATHMON process and the Event Management Service (EMS), supplied as part of
DSM for collecting and reporting events.)
Management applications that use the management programming interface can improve systems
availability by reducing the chance of human error, which often occurs during routine system
management. Also, by automating repetitive system management tasks, management applications
can free operators to concentrate on more critical or creative system management activities.
Other System Management Tools
You get optimum performance from a well-balanced NonStop system. These tools allow you to
analyze NonStop system performance.
• The Measure product allows you to balance and tune NonStop systems. Using the Measure
product, you can configure measurements, collect performance data, display and plot data,
and so on.
For more information about using Measure, see the Measure User’s Guide and the Measure
Reference Manual.
• The HP Tandem Performance Data Collector (TPDC) is a host-based performance collection
and relationship product. TPDC integrates and normalizes data from Measure and other
sources and creates a single consolidated file for subsequent reporting and analysis.
TPDC is bundled with the System Performance Analysis and Measurement (SPAM) set of
products.
• The ViewPoint operations console application lets you interact simultaneously with multiple
NonStop products, including PATHCOM. Using the ViewPoint application, you can control
32 Introduction to NonStop TS/MP System Management