Blade Server Controls And Leds - IBM QS22 - BladeCenter - 0793 Service Manual

To avoid loss of data, shut down the Linux
blade server. Shut down the operating system by entering the shutdown -h now
command at the command prompt or by choosing shutdown if you are using a
graphical user interface (GUI). See your operating system documentation for
additional information about shutting down the operating system.
If the BladeCenter unit has not been turned off, the blade server can be turned off
in any of the following ways:
Using the power-control button
Using the BladeCenter Advanced Management Module
Note: After turning off the blade server, wait at least 5 seconds before turning it on

Blade server controls and LEDs

This section describes the controls and LEDs on the front panel of the blade server.
For further information about the LEDs and how they can be used to assist in
troubleshooting, see "Problems indicated by the front panel LEDs" on page 57.
Figure 2. Power-control button and LEDs
Note: The control panel door which normally covers the LEDs and power-control
Activity LED:
Press the power-control button behind the control-panel door on the front
panel of the blade server. This starts an orderly shutdown of the operating
system if it has not been shut down already, providing your operating
system supports this feature, before turning off the blade server. If the
operating system stops functioning, pressing and holding the power-control
button for more than 4 seconds turns off the blade server.
You can use the Advanced Management Module Web interface to turn off
the blade server remotely. You can also configure the Advanced
Management Module to turn off the blade server automatically if the system
is not operating correctly.
again.
button is omitted for reasons of clarity.
This green LED lights when there is network activity.
®
operating system before you turn off the
Information
LED
Location
LED
Activity
LED
Power-control
Power-on
button
LED
CD
Media-tray
select button
Blade-error
LED
NMI
reset-button
Chapter 1. Introduction
5