Bull ESCALA E Series Operator's Manual - page 18
1-8
Operator’s Guide
Power Off Position
This is the standby position. The system is not working but it is possible to
call the standby menu for offline maintenance purposes.
Service Position
The Service position
can be used either to do an automatic or an interactive
power on, depending on the value of the Open Firmware
auto-boot?
flag
(
true
by default, it performs an automatic boot). When the system is
powered on with the key in this position, the operating system diagnostic
mode is entered. Moreover, this position is used for some offline
maintenance activities (e.g. offline test running).
Normal Position
The Normal position is for normal system operations. It can be used either
to do an automatic or an interactive power on, depending on the value of the
Open Firmware
auto-boot?
flag (
true
by default, it performs an
automatic boot).
Secure Position
The Secure position prevents the system from booting. If the system is
already booted, this position does not lock the system console or block
system network communication.
When the operating system is up, turning the key to the Secure position
disables the Reset Button. With the Key Mode Switch in this position, a
passerby cannot accidentally press the Reset Button and cause a loss of
data.
Note:
The Key Mode Switch functions of the Disk Expansion Unit are described in the
Using the Disk Expansion Unit
manual.