Sun Microsystems X4150 Server manual Power Off from Main Power Mode, 1Front Panel Power/OK LED

2.Use a stylus, pen, or other non-conducting pointed object, to press and release the recessed Power button on the server front panel.

When the main power is applied to the server, the Power/OK LED next to the Power button lights and remains lit, as shown in FIGURE 6-1.

FIGURE 6-1Front Panel Power/OK LED

Note – The first time the server powers on, the power on self-test (POST) can take up to a minute.

Power Off from Main Power Mode

To remove main power from the server, use one of the following two methods:

TABLE 6-1 Shutdown

ShutdownMethod

Graceful shutdown Use a pen, or other pointed object, to press and release the Power button on the front panel. This 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 will shut down to standby power mode immediately.

Emergency shutdown Press and hold the Power button for at least four seconds until the main power is off and the server enters standby power mode. When the main power is off, the Power/OK LED on the front panel flashes, indicating that the server is in standby power mode.

Caution – To completely power off the server, you must disconnect the AC power cords from the back panel of the server.

64 Sun Fire X4150 Installation Guide • January 2008