Light Path Diagnostics Leds - IBM BladeCenter T 8720 Installation And User Manual

Light path diagnostics LEDs

A system-alarm LED on the system-status panel is lit when certain system errors
occur. If one of the system-alarm LEDs on your BladeCenter T unit is lit, use the
following table to help determine the cause of the error and the action you should
take.
Note: You can configure the major and critical alarm LEDs to be either amber or
Table 5. Light path diagnostics
Lit LED Cause
BladeCenter T system-status panel
Location A condition has occurred in the BladeCenter T
unit that has caused the remote system
management to identify the BladeCenter T unit
as needing attention.
Minor (MNR) A noncritical event has occurred that should be
looked at, such as the wrong I/O module
inserted in a bay.
Major (MJR) A major system error has occurred, such as
the loss of one of two mirrored disks.
Note: You can configure the major error LED
to be either red or amber through the
management module.
Critical (CRT) A critical system error has occurred, such as
nonredundancy on the power modules or a
system error in a blade server.
Note: You can configure the critical error LED
to be either red or amber through the
management module.
Management module
System error A critical error has occurred in the
management module.
red through the management module.
Action
Look for any information or error LEDs on the
system-status panels, the modules, and the
blade servers in this BladeCenter T unit, and
follow the instructions in this table for those
LEDs.
Check the error log for the messages. Check
the LEDs on the BladeCenter T 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 module, follow
the instructions for the module in this
table.
– If the error LED is on a blade server, see
the documentation that comes with the
blade server.
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 module, follow
the instructions for the module in this
table.
– If the error LED is on a blade server, see
the documentation that comes with the
blade server.
v If your BladeCenter T unit has only one
management module:
1. Try reseating the management module.
2. Restart the management module.
If the problem remains, replace the
management module.
v If your BladeCenter T unit has two
management modules, the BladeCenter T
unit continues to function using the
redundant module. Replace the failed
management module.
Chapter 6. Solving problems
79