IBM E10, Service Manual, Page: 243 / 279

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 server can operate a timer, much like the
wake-up timer on your clock radio. You can set the timer so that your server powers on at a certain time
after shutting down. The timer is battery operated, so power interruptions occurring while the server is
off do not affect its accuracy. Refer to the shutdown -t command of AIX for details on setting the timer.
Because of the potential for AC power loss, the Timed Power-On function of AIX can only be assured
when Unattended Power-On Mode is enabled. If a Timed Power-On event occurs during an AC power
loss, and if Unattended Power-On Mode is enabled, the system starts when AC power is restored.
If Unattended Start Mode is disabled (the default), the system power state remains off when AC power
is restored, regardless of the power state of the system when AC loss occurred.
v
Ring Indicate Power-On
Enabling ring indicate power-on disables remote call-in. If ring indicate power-on is enabled, the server
will power on at a predetermined number of rings. If the server is already on, no action is taken. In
either case, the telephone call is not answered. The caller receives no feedback that the server
powered on.
v
Follow-up to a Failed Boot Attempt
The SP will initiate a power-on sequence upon detection of a failed boot attempt.
SP Reboot/Restart Recovery
Reboot describes bringing the system hardware back up from scratch, for example, from a system reset
or power on. The boot process ends when control passes to the operating system process.
Restart describes activating the operating system after the system hardware reinitialized. Restart must
follow a successful reboot.
Failure During Boot Process: During the boot process, either initially after system power-on or upon
reboot after a system failure, the Service Processor (SP) monitors the boot progress (via surveillance). If
progress stops, the SP can reinitiate the boot process (reboot) if enabled to do so. The SP can re-attempt
this process according to an entry on the Reboot/Restart Policy Setup Menu.
Failure During Normal System Operation: When the boot process completes and control transfers to
the operating system (OS), the SP can monitor operating system activity (see the SERVICE PROCESSOR
SETUP MENU item Set Surveillance Parameters). If OS activity stops, the SP can initiate a reboot/restart
process based on the settings in the SP Reboot/Restart Policy Setup Menu and the OS automatic restart
settings (see OS documentation).
If the operating system is AIX, the menu item under SMIT for setting the restart policy is Automatically
Reboot After Crash (True/False), and the default is False. When the setting is True, and if the SP
parameter, Use OS-Defined Restart Policy, is Yes (the default), the SP takes over for AIX to reboot/restart
after a Check Stop or Surveillance failure.
Service Processor Reboot/Restart Policy Controls: The operating system’s automatic restart policy
(see operating system documentation) indicates the OS response to a system crash. The SP can be
instructed to refer to that policy, or not, by the Use OS-Defined Restart Policy menu item.
If the operating system has no automatic restart policy, or if it is disabled, then the SP restart policy can be
controlled from the SP Menus by using the Enable Supplemental Restart Policy selection.
Use OS-Defined restart policy?: The Use OS-Defined restart policy default setting is YES. This
causes the SP to refer to the OS Automatic Restart Policy setting and take action, the same action the OS
would take if it could have responded to the problem causing the restart.
Service Processor Connection
Appendix A. Service Processor Connection
227