v
AC power LED:
When this green LED is lit, ac input to the power module is
present and within specifications. During typical operation, both the ac power
and dc power LEDs are lit.
v
Power module error LED:
When this amber LED is lit, a power module has
failed and is not operating within specifications.
v
Fan error LED:
When this amber LED is lit, a fan pack has failed and is not
operating within specifications.
Media tray
The media tray contains the following:
v
Front system LED panel
The LEDs on this panel provide status information for your BladeCenter unit.
Power-on
Location
Over-temperature
Information
System error
Note:
You can turn off the location LED and the information LED through the
Web interface.
–
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 might have already taken
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
installed. The event is recorded in the event log. Check the LEDs on the
BladeCenter unit and the blade servers to isolate the component (see
Chapter 2, “Diagnostics,” on page 11 for more information about event log
messages and checking the LEDs). After the situation is corrected, have the
system administrator turn off the information LED.
6
BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
Summary of Contents for 8852 - BladeCenter H Rack-mountable
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