IBM QS21 Service Guide - Page 22
Turning, blade, server - linux
UPC - 883436016940
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Power-control button Figure 1. Blade server power button Using the BladeCenter Advanced Management Module You can use the BladeCenter Management Module Web interface to turn on the blade server remotely. Using the Wake on LAN® feature: If you want to use the Wake on LAN feature, the feature must be enabled in the installed operating system and it must not have been disabled through the Advanced Management Module. In the event of a power failure the BladeCenter unit and then the blade server can start automatically when power is restored. You must configure this through the BladeCenter Advanced Management Module. See the BladeCenter Management Module User's Guide for further information about this feature. Turning off the blade server When you turn off the blade server, it is still connected to power through the BladeCenter unit and can continue to respond to requests from the service processor, including remote requests to turn the blade server on. To remove all power from the blade server, you must physically remove it from the BladeCenter unit or power off the BladeCenter unit. To avoid loss of data, shut down the Linux® operating system before you turn off the 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 You can 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, providing your operating system supports this feature, before turning off the BladeCenter QS21. If the operating system stops functioning, pressing and holding the power control button for more than 4 seconds turns off the blade server. Using the BladeCenter Advanced Management Module You can use the Advanced Management Module Web interface to turn off 4 BladeCenter QS21 Type 0792: Problem Determination and Service Guide