Skip to main content

Turn 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).

The server can be turned on (power status LED on) in any of the following ways:
  • You can press the power button.

  • The server can respond to remote power-on requests sent to Lenovo XClarity Controller via Lenovo XClarity Essentials OneCLI, IPMItool, or SSH CLI.

    For example, run the following command on Lenovo XClarity Essentials OneCLI to power on your server:
    OneCli.exe ospower turnon --bmc USERID:PASSW0RD@host

    For more information about running the ospower command, see .

If the system UEFI power policy is set to always on, the system will be powered on automatically when an AC source is plugged in.

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

System boot/startup time

The system boot/startup time varies by hardware configurations and may change depending on your server configuration and conditions.

  • For typical configurations without PMEM memory modules, it takes about 3 minutes for the system to start up.

    Configuration example: 2 x processors, 16 x RDIMMs, 1 x RAID adapter, 1 x NIC adapter

  • For configurations with PMEM memory modules installed, it may take up to 15 minutes for the system to start up.

    Configuration example: 2 x processors, 16 x RDIMMs, 16 x PMEMs, 1 x RAID adapter, 1 x NIC adapter

  • For configurations with PMEM memory modules installed and Intel Volume Management Device (VMD) enabled, it may take about 20 minutes or longer for the system to start up.

    Configuration example: 2 x processors, 16 x RDIMMs, 16 x PMEMs, 1 x RAID adapter, 1 x NIC adapter