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7
T
ROUBLESHOOTING
THE
S
YSTEM
This chapter explains how to troubleshoot certain
problems within the CoreBuilder
®
3500 system. It
covers how to identify and correct system problems
and suggests some steps that you can take if you
cannot resolve the problem.
Getting Additional Help
If you experience system problems that are not
addressed in this chapter, contact 3Com Technical
Support or your service representative. Before you
call, gather the following information and have it
available:
■ Chassis type and serial number
■ Maintenance agreement or purchase date and
warranty information (See the last pages of this
book for the Limited Warranty.)
■ Software revision number
■ Brief description of the problem
Some of this information can be viewed in the system
display in the Administration Console or WebConsole.
See the Command Reference Guide or the Web
Management User Guide for more information.
For information on where to call, see Appendix D.
Safety Precautions
Be sure that you follow all safety precautions when
you diagnose system problems.
WARNINGS: Hazardous energy exists within the
CoreBuilder 3500 system. Always be careful to avoid
electric shock or equipment damage. Many
installation and troubleshooting procedures should be
performed only by trained technical personnel.
When the system is on, never insert a metal object
such as a screwdriver or a finger with jewelry into
open module slots or into the system backplane.
When the system is on, do not touch any connections
within the chassis with your hands or fingers.
When removing or replacing the system processor,
modules, fan trays, and power supplies, observe all
electrostatic precautions. Before handling the system
processor or modules, always wear an ESD wrist strap
that makes good skin contact and is connected to a
proper ground.