About Hot-Pluggable And Hot-Swappable Components - Sun Microsystems Fire V890 Service Manual

6. Turn the keyswitch to the Forced Off position.
Caution – Be sure to turn the keyswitch to the Forced Off position before handling
any internal components. Otherwise, it is possible for a Remote System Control
(RSC) user to restart the system remotely while you are working inside it. The
Forced Off position is the only keyswitch position that prevents an RSC user from
restarting the system.
7. Remove the key from the keyswitch and keep it in a secure place.
About Hot-Pluggable and
Hot-Swappable Components
Sun Fire V890 systems feature a variety of components that can be serviced while the
machine is running.
Hot-pluggable components are components that a qualified service technician can
install or remove while the system is running, without affecting the rest of the
system's capabilities. However, in many cases, you must prepare the operating
system prior to the hot-plug event by performing certain system administration
tasks.
6 Sun Fire V890 Server Service Manual • October 2005
Forced Off position