3Com 3C17709, Getting Started Manual

Page: 54 / 86

54 C
HAPTER
4: P
ROBLEM
S
OLVING
Solving Hardware
Problems
In the rare event of your Switch unit experiencing a hardware failure,
refer to the list of suggested solutions below.
An expansion module is installed and the unit will not power up
Ensure that the expansion module is fully seated in the slot and the
connectors are engaged so that the securing screws can be tightened.
A fan failure warning message is received
Your Switch has a fan monitoring system that will generate fan failure
warning messages. Fan failure could potentially reduce the lifetime of the
Switch. The monitoring system polls the fan status at periodic intervals
while the unit is powered up.
Should one or more fans fail within the Switch, a warning message will
be generated in the following ways:
■
RMON Email Notification — If configured, you will receive
notification of the fan failure via email, SMS (Short Message Service),
or pager.
■
RMON Trap — If configured, an RMON trap is generated and sent to
the management workstation.
■
Command Line Interface — An indication of a general hardware
failure is provided through the Top level menu displayed when logging
on to the CLI. For more detailed information about the failure select
the
system summary
command.
■
Web interface — An indication of fan failure is provided through the
Device Summary table for the specific unit. In addition all Summary
tables turn red to indicate the fan failure. The device mimic will also
display red flashing fan icons.
For further information about RMON, refer to “Chapter 7: Status
Monitoring and Statistics” in the Switch Implementation Guide supplied
in PDF format on the CD-ROM that accompanies the Switch.
If a fan failure warning message is generated:
1 Power off the unit.
2 Check that the air vents are not obstructed.