IBM BladeCenter HT 8740, Руководство по диагностике и обслуживанию

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Light path diagnostic LEDs
Light path diagnostic LEDs are a system of LEDs on the BladeCenter HT unit and
the BladeCenter components that can be used to identify system errors. If the front
or rear system-error LED of the BladeCenter HT unit is lit, one or more error LEDs
on the BladeCenter components also might be lit. These LEDs help identify the
cause of the problem.
BladeCenter system LEDs
Use the following table to find solutions to problems that are identified by the media
tray and alarm panel module LED panels.
Lit LED Cause Action
Media tray and alarm panel module LED panel
Power-on
(Green)
When this green LED is lit, power is present in
the BladeCenter HT unit. When this LED is off,
the power subsystem, the power, or the LED
has failed, or the management module is not
present or not functioning.
Attention: If the power-on LED is not lit,
there still might be electrical current present in
the BladeCenter HT unit. The LED might be
burned out. To remove all electrical current
from the BladeCenter HT unit, remove all of
the power modules or disconnect all power
cords from the power connectors in the rear of
the chassis.
1. Make sure the BladeCenter HT is
connected to a compatible power supply
(see “Supplying power to the BladeCenter
HT unit” on page 6).
2. Reseat the following components:
a. Media tray (see “Removing a media
tray” on page 51.)
b. Power modules (see “Removing a
power module” on page 55.)
c. Management module (see “Removing a
management module” on page 75.)
Location
(Blue)
When this blue LED is lit, a condition has
occurred in the BladeCenter HT unit that has
caused the remote system management to
identify the BladeCenter HT unit as needing
attention. Look for any information or error LEDs on the
system LED panels, the modules, and the
blade servers in this BladeCenter HT unit.
Critical system fault
(Amber/Red)
When this LED is lit, the BladeCenter HT unit
has a critical system fault. A critical system
fault is an error or event that is detected by the
system with a significant impact to the system.
In this case, the system cannot continue to
operate or is operating in a non-redundant
power configuration or a non-redundant cooling
configuration. The critical alarm LED will be
enabled and the critical alarm relay will be
activated.
1. Check the error log for messages.
2. Look for a lit error LED on the modules and
blade servers to locate a failing component:
v
If the error LED is on a module, see the
documentation that comes with the
module.
v
If the error LED is on a blade server, see
the documentation that comes with the
blade server.
Major system fault
(Amber/Red)
When this LED is lit, the BladeCenter HT unit
has a major system fault. The system can
continue to operate but may loose some
functionality and performance. The rear panel
major alarm LED will be enabled and the major
alarm relay will be activated.
1. Check the error log for messages.
2. Look for a lit error LED on the modules and
blade servers to locate a failing component:
v
If the error LED is on a module, see the
documentation that comes with the
module.
v If the error LED is on a blade server, see
the documentation that comes with the
blade server.
Chapter 5. Diagnostics
113