Troubleshooting Guide

Chapter 17. Diagnostic Tools for UNIX-Based Systems

Use the diagnostic tools described in this chapter to gather and process data that can help identify the cause of a problem you are having with your UNIX-based system. Once the data is collected, it can be examined by someone who is familiar with the problem, or provided to DB2 Customer Support for analysis.

The diagnostic tools available for UNIX-based systems include:

System error log (syslog)

DB2 logs error and warning conditions to the system error log (syslog). See Using the System Error Log (syslog).

Core file

A core file is created when severe errors occur. It contains a memory image of the terminated process, and can be used to determine what function caused the error. See Using the Core File, for more information.

Process status utility (ps)

The ps command returns process status information about active processes to standard output. See Viewing Process Status Using the ps Command, for more information.

Other UNIX-based commands

UNIX-based systems provide various tools and utilities to diagnose problems. For a summary, see Other Commands.