IBM R30 Operator's Manual page 24

The following table summarizes the operations possible for each key mode position for the
CPU enclosure.
Operation
Reset/Scroll Key
SystemGuard Console
Active
SystemGuard Console
Debug/Dump
Normal IPL
Service IPL
Note: The name SystemGuard Console refers to the Local Console connected to the S1
port on the system interface board (SIB), and the name Remote Console refers to
the Service Console connected to the S2 port on the system interface board.
Note: Refer to AIX Version 3.2.5 System Management Guide: Operating System and
Devices (form number SC23-2525) and other operating system documentation for
information about the shutdown command and stopping the system unit.
The Normal position ( OK ):
The Normal position is used for attended operation, which is the usual or normal
placement of the key mode switch when an operator is present and in control of the
operation at the system unit. The Reset/Scroll button is active when the switch is in the
Normal position. The IPL proceeds according to the Normal Mode Bootlist.
Note: If an operating system (software) is not installed, use the Service position for initial
Attention: Pressing the Reset button when performing a reset via the remote reset port
or when the key mode switch is in the Normal position can cause data to be damaged or
lost if the operating system is running. See "Using the Reset/Scroll Button" on page 2-8
for a description of the Reset button operation.
The system unit can automatically restart if the key mode switch is in the Normal
position. When primary power is restored after a loss of power, the system unit
automatically starts again.
2-4
Operator Guide
Key Mode Switch Position
Normal
Enabled
Enabled
Disabled
Enabled
Disabled
installation.
Secure Service
Disabled Enabled
Enabled Enabled
Disabled Enabled
Disabled Disabled
Disabled Enabled