Bladecenter Components, Controls, And Leds; Front View - IBM 8677 - BladeCenter Rack-mountable - Power Supply Installation And User Manual

BladeCenter components, controls, and LEDs

This section identifies the components, controls, and LEDs on the front and rear of
the BladeCenter unit.
Note: The illustrations in this document might differ from your hardware.

Front view

This section identifies the components, controls, and LEDs on the front of the
BladeCenter unit.
v Front system LED panel: The LEDs on this panel provide status information for
14
BladeCenter E Type 8677: Installation and User's Guide
your BladeCenter unit.
Location Information
Power-on Over-temperature
– Power-on: When this green LED is lit, power is present in the BladeCenter
unit. When this LED is off, the power subsystem, the ac power, or the LED
has failed, or the management module is not present or not functioning.
Attention: If the power-on LED is off, it does not mean there is no electrical
current present in the BladeCenter unit. The LED might be burned out. To
remove all electrical current from the BladeCenter unit, you must disconnect
all power cords from all power modules.
– Location: When this blue LED is lit or flashing, it has been turned on by the
system administrator, to aid in visually locating the BladeCenter unit. If a blade
server requires attention, the location LED on the blade server usually will
also be lit. After the BladeCenter unit has been located, you can have the
system administrator turn off the location LED.
– Over-temperature: When this amber LED is lit, the temperature in the
BladeCenter unit exceeds the temperature limits or a blade server reports an
over-temperature condition. The BladeCenter unit senses the error and will
take corrective action, such as increasing the blower speed. This LED turns
off automatically when there is no longer an over-temperature condition.
– Information: When this amber LED is lit, a noncritical event has occurred that
requires attention, such as the wrong I/O module inserted in a bay or power
demands that exceed the capacity of power modules that are currently
System error