Diagnostic Leds - IBM 8677 - BladeCenter Rack-mountable - Power Supply Installation And User Manual

Diagnostic LEDs

The LEDs on the system LED panel are lit when certain system errors occur. If an
LED on your BladeCenter unit is lit, use the following table to help determine the
cause of the error and the action you should take. For a description of the individual
LED conditions, see the documentation for your management module and I/O
modules.
Table 2. Diagnostic LEDs
Lit LED Cause
BladeCenter system LED panel
Location A condition has occurred in the BladeCenter
unit that has caused the remote system
management to identify the BladeCenter unit
as needing attention.
Over-temperature The system temperature has exceeded a
threshold level.
Information A noncritical event has occurred that should be
looked at, such as the wrong I/O module
inserted in a bay, or power requirements that
exceed the capacity of power modules
currently installed.
System error A critical system error has occurred, such as
nonredundancy on the power modules or a
system error in a blade server.
Action
Look for any information or error LEDs on the
system LED panels, the modules, and the
blade servers in this BladeCenter unit. See the
Hardware Maintenance Manual and
Troubleshooting Guide for more information.
v Determine whether a blower module has
failed. If it has, replace the blower module
as soon as possible, to regain redundancy.
See the Hardware Maintenance Manual and
Troubleshooting Guide for instructions.
v Make sure that the room temperature is not
too high. (See "Features and specifications"
on page 3 for temperature information.)
v Determine whether a blade server has a
temperature LED lit. If it does, see the
documentation that comes with the blade
server.
v Make sure that there is a blade server,
module, or filler installed in each bay.
If the problem remains, call for service.
v Check the error log for messages.
v Check the LEDs on the BladeCenter unit
and the blade servers to isolate the
component.
v Check the error log for messages.
v Look for an error LED on the modules and
blade servers to locate the component. If the
error LED is on a blade server, see the
documentation that comes with the blade
server for more information.
Chapter 7. Solving problems
39