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Service Processor Parameters in Service Mode (Full System Partition)
When the system is in service mode, the following service-processor parameters are suspended:
v
Unattended Start Mode
v
Reboot/Restart Policy
v
Call-Out
v
Surveillance
When service mode is exited, the service processor functions are reactivated.
System Power-On Methods
This section discusses the following system power-on methods:
v
Power-on Switch
v
Service Processor Menus
Privileged users can power on the system by selecting the
System Control Power Menu
option from
the main menu and then selecting the
Power-on System
option from the System Power Control Menu.
General users should select
Power-on System
on the General User Menu.
v
Remote Power-on via Ring-Indicate Signal
The system automatically powers on when it detects a
″
ring indicate
″
signal from a modem attached to
serial port 1 (S1) or serial port 2 (S2).
A remote user can call the system to activate ring detection by the modem. Listen for a few more rings
than the threshold number for starting the system. The system powers on without answering the call.
v
Unattended start mode - refer to
Enable/Disable Unattended Start Mode
on page 372.
The service processor can be enabled to recover from the loss of ac power (see Enable/Disable
Unattended Power-On Mode in the SYSTEM POWER CONTROL MENU). When ac power is restored,
the system returns to the power state at the time ac loss occurred. For example, if the system was
powered on when ac loss occurred, it reboots/restarts when power is restored. If the system was
powered off when ac loss occurred, it remains off when power is restored.
v
Timed power-on - refer to the
shutdown -t
command on servers using AIX.
Working in conjunction with AIX, the service processor in your system can operate a timer, much like
the wake-up timer on your clock radio. You can set the timer so that your system powers on at a certain
time after shutting down. The timer is battery-operated, so power interruptions that occur while the
system is off do not affect its accuracy. Refer to the AIX
shutdown -t
command for details on setting
the timer.
Note:
If an ac power loss is in progress when the timed power-on attempt occurs, the system cannot
power on when ac power is restored.
v
Follow-up to a Failed Boot Attempt
The service processor initiates a power-on sequence if a failed boot attempt is detected (due to a
hardware or software failure).
v
Fast or Slow Boot (IPL)
Using the service processor menus, you can select the IPL type, mode, and speed of your system.
Attention:
Selecting fast IPL results in several diagnostic tests being skipped and a shorter memory
test being run.
Chapter 7. Using the Service Processor
391
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