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Chapter 2 Hardware Overview 2-7
2.2.2 Switches on the Operator Panel
TABLE 2-1 depicts the functions of the switches on the operator panel.
The switches on the operator panel include the mode switch for setting the operation
mode and the power switch for turning on and off the server.
TABLE 2-2 shows the function of the mode switch.
TABLE 2-1 Switches (Operator Panel)
Switch Name Description of function
Mode
Switch
(Key
Switch)
This switch is used to set the operation mode for the server.
Insert the special key that is under the customer's control, to
switch between modes.
Locked Normal operation mode
• The system can be powered on with the power button, but
it cannot be powered off with the power button.
• The key can be pulled out at this key position.
Service Mode for maintenance
• The system can be powered on and off with the power
button.
• The key cannot be pulled out at this key position.
• To stop and maintain the server, set the mode to Service.
Power button This button is used to turn on or turn off the power to the
server (a domain).
Power on and power off are controlled by pressing this button
in different patterns, as described below.
Holding down the button
for a short time
(less than 4 seconds)
Regardless of the mode switch setting, the server is powered
on.
If set in the XSCF, facility (air conditioners) power-on and
warm-up processing is skipped.
*
* In normal operation, the server is powered on only when the data center environmental conditions satisfy the specified values. Then,
the server remains in the reset state until the operating system is booted.
Holding down the button
for a long time in Service
mode
(4 seconds or longer)
• If power to the server is on, OS shutdown processing is
executed for all domains before the system is powered off.
• If the server is being powered on, the power-on processing
is cancelled, and the server is powered off.
• If the server is being powered off, the operation of the
power button is ignored, and the power-off processing is
continued.