OSI/TS Configuration and Management Manual

Performing Monitoring and Troubleshooting Guide

OSI/TS Configuration and Management Manual—424831-001

4-6

Impact of Changes

Finally, keep in mind that making changes to any one of the factors discussed in this

section may have only a minor impact on total system performance. However, making

changes to a number of these factors together can result in improved levels of

performance.

Using EMS as a Troubleshooting Tool

EMS collects and distributes all errors reported by all subsystems running in your

Compaq system, including errors reported by the following:

•

SCF

•

OSI/TS-specific SCF

•

SPI

•

OSI/TS-specific SPI

•

Your management application

•

Your user application

•

Underlying subsystems

Individual messages, or groups of messages, can provide important clues and specific

information for diagnosing problems.

EMS filters are a useful mechanism for selecting messages of special interest, or groups

of messages. Because EMS filters are easy to write, they can easily be written, or

tailored, to select messages pertaining to a particular problem. For more information,

see the Event Management Service (EMS) Manual.

Using the CHECK SU Command

You can use the SCF command, CHECK SU, to display information about all the

subdevices (controlled by OSI/TS, X25AM, and TLAM/PAM) that match the selection

criteria in the command. CHECK SU displays active subdevices, all subdevices waiting

for a connection to be established, and all inactive static subdevices.