How to Power Off the Server

To gracefully power off the server from full-power mode to standby-power mode, use the operating system-specific shutdown procedure for the OS running on your server.
All operating systems have a shutdown procedure. This shutdown procedure provides a graceful shutdown of the OS, and it should be your first choice for powering off the server.

To gracefully power off the server from full-power mode to standby-power mode using the Power switch, use a stylus or other nonconducting pointed object to quickly press and release the Power button on the front panel.

Caution - Potential data loss. Pressing and releasing the Power button causes Advanced Configuration and Power Interface (ACPI)–enabled operating systems to perform an orderly shutdown of the operating system. Servers not running ACPI-enabled operating systems perform an emergency shut down to standby-power mode.

When the server is in standby-power mode, the Power OK LED on the front panel blinks, indicating that standby-power is still available.

Caution - In standby-power mode, power is still directed to some components. To completely power off the server, you must disconnect the AC power cords from the back panel of the server.

To perform an emergency shutdown of the server power, press and hold the Power button for four seconds to force a power down to standby-power mode.

Caution - Potential data loss. Pressing and holding the Power button for four seconds performs an immediate shutdown of the server. The system does not prompt for confirmation, nor are you allowed to save and exit open applications.

To completely power off the server, remove the AC power cable(s).

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	Sun Fire X2270 M2 Server Installation Guide