Lenovo 3821, 3822, 3719, 3823 manual Turning off the server

Turning off the server

When you turn off the server and leave it connected to ac power, the server can respond to requests from the IMM, such as a remote request to turn on the server. While the server remains connected to ac power, one or more fans might continue to run. To remove all power from the server, you must disconnect it from the power source.

Important: To view the error LEDs on the system board, leave the server connected to a power source.

Some operating systems require an orderly shutdown before you turn off the server. See your operating-system documentation for information about shutting down the operating system.

Statement 5:

CAUTION:

The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

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The server can be turned off in any of the following ways:

vYou can turn off the server from the operating system, if your operating system supports this feature. After an orderly shutdown of the operating system, the server will be turned off automatically.

vYou can press the power-control button to start an orderly shutdown of the operating system and turn off the server, if your operating system supports this feature.

vIf the operating system stops functioning, you can press and hold the power-control button for more than 4 seconds to turn off the server.

vThe IMM can turn off the server as an automatic response to a critical system failure.

vYou can turn off the server through a request from the IMM.

148ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual