Powering Off The System - Sun Microsystems 6500 Installation Manual

3.3.4

Powering Off the System

Before turning off the system power, you must halt the operating system. See the
Preface, "UNIX Commands," to find references that can help with the commands for
this task or other system administration procedures.
Note – Failure to halt the operating system properly can cause the loss of disk drive
data.
Note – Do not disconnect the terminal while the system is running.
Caution – To avoid damaging internal circuits, do not disconnect or connect in any
cable while power is applied to the system.
To shut down the system:
1. Notify users that the system is going down.
2. Back up the system files and data to tape, if necessary.
3. Halt the system using the appropriate commands.
Refer to the Solaris Handbook for SMCC Peripherals that corresponds to your operating
system.
4. Wait for the system-halted message and the boot monitor prompt.
5. Turn the key switch on the front panel of the server to the Standby position (fully
counterclockwise).
6. Turn off the system power in this order:
1. External drives and expansion cabinets (if any)
2. System AC power switch
3. Terminal
For more system administration information on methods for shut-down and backup,
see the Preface, "UNIX Commands," for references to documentation that describes
these procedures.
3-14 Sun Enterprise 6500/5500/4500 Systems Installation Guide • August 2001