About Power Button And Keyswitch Settings; System Power Button - Sun Microsystems Fire V890 Service Manual

About Power Button and Keyswitch
Settings

System Power Button

The system Power button is recessed to prevent accidentally turning the system on
or off. The ability of the Power button to turn the system on or off is controlled by
the security keyswitch.
If the operating system is running, pressing and releasing the Power button initiates
a graceful software system shutdown. Pressing and holding in the Power button for
five seconds causes an immediate hardware shutdown.
Note – Whenever possible, you should use the graceful shutdown method. Forcing
an immediate hardware shutdown may cause disk drive corruption and loss of data.
Use this method only as a last resort.
Power button
14 Sun Fire V890 Server Service Manual • October 2005