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Power off the server

The server remains in a standby state when it is connected to a power source, allowing the Lenovo XClarity Controller to respond to remote power-on requests. To remove all power from the server (power status LED off), you must disconnect all power cables.

Power button location and power LED are specified in Troubleshooting by system LEDs.
  • The node power button LED states are as followed:
    Table 1. Power button and power status LED (green)
    StatusColorDescription
    OffNoneNo power supply is properly installed, or the LED itself has failed.
    Flashing rapidly (four times per second)GreenThe server is turned off and is not ready to be turned on. The power button is disabled. This will last approximately 5 to 10 seconds.
    Flashing slowly (once per second)GreenThe server is turned off and is ready to be turned on. You can press the power button to turn on the server.
    LitGreenThe server is turned on.
To place the server in a standby state (power status LED flashes once per second):
Note
The Lenovo XClarity Controller can place the server in a standby state as an automatic response to a critical system failure.

  • Start an orderly shutdown using the operating system (if supported by your operating system).

  • Press the power button to start an orderly shutdown (if supported by your operating system).

  • Press and hold the power button for more than 4 seconds to force a shutdown.

When in a standby state, the server can respond to remote power-on requests sent to the Lenovo XClarity Controller. For information about powering on the server, see Power on the server.