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Power on the server

After the server performs a short self-test (power status LED flashes quickly) when connected to input power, it enters a standby state (power status LED flashes once per second).

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.
The server can be turned on (power LED on) in any of the following ways:

  • You can press the power button.

  • The server can restart automatically after a power interruption.

  • The server can respond to remote power-on requests sent to the Lenovo XClarity Controller.

For information about powering off the server, see Power off the server.