IBM 8852 User Guide - Page 29

Media tray, Power module error LED, Fan error LED, Front system LED panel, Power-on, Attention

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v Power module error LED: When this amber LED is lit, a power module failure has occurred and it 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 management module. - 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, not functioning or the media tray is not fully seated. Attention: If the power-on LED is off, it does not mean that 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 the BladeCenter unit. - 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. After the situation is corrected, have the system administrator turn off the information LED. Chapter 2. BladeCenter unit power, controls, and indicators 13

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v
Power module error LED:
When this amber LED is lit, a power module failure
has occurred and it 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
management module.
–
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, not functioning or the
media tray is not fully seated.
Attention:
If the power-on LED is off, it does not mean that 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 the BladeCenter unit.
–
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. After the
situation is corrected, have the system administrator turn off the information
LED.
Chapter 2. BladeCenter unit power, controls, and indicators
13