Powering Off The Challenge Deskside System; Rebooting Your System - Silicon Graphics POWER CHALLENGE User Manual

Powering Off the Challenge Deskside System

Rebooting Your System

The server should be completely powered down only for relocation, routine
maintenance, or repair. Before beginning this procedure, log out and shut
down the software using the software instructions that follow:
1. To halt operating system activity and prepare the system for power off,
become superuser and enter
window. The /etc/halt command gracefully shuts down the system
software and leaves you at the firmware monitor level. If you are
remotely logged in to the system, you will be prompted before the
shutdown procedure is executed.
2. Turn the System Controller key switch to the Off position to eliminate
all power to the boards and peripherals. See Figure 3-4.
3. Switch the system circuit breaker to the Off position to eliminate all
power to the OLS and backplane.
4. Unplug the power cord from the socket to cut off all electrical power to
the system.
To reboot the Challenge deskside server, use the /etc/reboot command, either
input to the system console or entered from a remote terminal. You must be
superuser before trying to input this command. If you are remotely logged
in to the system, it will prompt you to confirm the command before
executing it.
After successfully executing the command, the system gracefully halts and
then automatically restarts.
Caution: Use the key switch (not the main system circuit breaker switch) to
power-cycle your system only if the system is completely unresponsive.
Using the system circuit breaker to power-cycle the system can cause
damage to system software and data.
See Figure 3-4 for the location of the key switch and the Off and On
positions.
Powering Off the Challenge Deskside System
in a functional UNIX
/etc/halt
®
39