IBM 7012 G Series, Руководство по обслуживанию

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System Power States
E-3
•
If the
power_fault
status is false, the system attempts to power on. If the system then
detects a power fault, the
power_fault
status is set to true. The system displays an
operator panel LCD error message, and the system goes to the MAIN_STANDBY status.
If no power fault is detected, the system goes to the IPL state.
Note: When the system is in this state, the Power-on button should not be pressed.
IPL
•
If the Power-on button is pressed and changes from the On position to the Off position,
the system goes to the WAIT_REBUILDING state.
•
If the IPL is successfully completed, the system goes to the Maintenance Menu or to AIX.
AIX
•
If the Power-on button is pressed and changes from the On position to the Off position,
the system goes to the WAIT_REBUILDING state.
•
If the
shutdown –F
command is run, the
was_shutdown
status is set to true and the
system goes to the WAIT_REBUILDING state.
•
If the
shutdown –Fr
command is run, the
was_shutdown
status remains false, and
the system goes to the WAIT_REBUILDING state.
WAIT_REBUILDING
In this state, the SystemGuard displays the
WAIT REBUILDING
message on the operator
panel display.
The system monitors the conditions to which the variables are set and does one of the
following:
•
If the Power-on button is in the On position, and the
was_shutdown
status is false, the
system goes to the WAIT_POWER_ON state.
•
If the Power-on button is in the On position, and the
was_shutdown
status is true, or if
the Power-on button is in the Off position, the system goes to the MAIN_STANDBY state.
Note: When the system is in this state, the Power-on button should not be pressed.
How to Turn System Power On from the BUMP Console
This procedure helps get the system power to turn on from the BUMP Console in the event
that your system does not seem to be responding to normal power operations.
From the SystemGuard BUMP console:
1. Check the BUMP console display, then check the list below and go to the appropriate
step.
– If you see a > with the cursor two spaces to the right, go to step 2.
– If you see a >
_ , press the Enter key on the bump console and go to step 2.
– If you see any sbb type menu, type x and then press Enter repeatedly until you exit all
menus, then go to the beginning of step 1.
– If you see nothing on the BUMP console, press the Enter key, then go to the beginning
of step 1.
2. Type
power,
then press Enter.