This number is the maximum number of consecutive attempts to reboot the
system. The term
reboot, in the context of this service aid, is used to describe
bringing system hardware back up from scratch; for example, from a system
reset or power-on.
When the reboot process completes successfully, the reboot attempts count is
reset to 0, and a restart begins. The term
restart, in the context of this service
aid, is used to describe the operating system activation process. Restart always
follows a successful reboot.
When a restart fails, and a restart policy is enabled, the system attempts to
reboot for the maximum number of attempts.
Use the O/S Defined Restart Policy (1=Yes, 0=No)
When 'Use the O/S Defined Restart Policy' is set to Yes, the system attempts to
reboot from a crash if the operating system has an enabled Defined Restart or
Reboot Policy.
When 'Use the O/S Defined Restart Policy' is set to No, or the operating system
restart policy is undefined, then the restart policy is determined by the
'Supplemental Restart Policy'.
Enable Supplemental Restart Policy (1=Yes, 0=No)
The 'Supplemental Restart Policy', if enabled, is used when the O/S Defined
Restart Policy is undefined, or is set to False.
When surveillance detects operating system inactivity during restart, an enabled
'Supplemental Restart Policy' causes a system reset and the reboot process
begins.
Call-Out Before Restart (on/off)
When enabled, Call-Out Before Restart allows the system to call out (on a serial
port that is enabled for call-out) when an operating system restart is initiated.
Such calls can be valuable if the number of these events becomes excessive,
thus signalling bigger problems.
Enable Unattended Start Mode (1=Yes, 0=No)
When enabled, 'Unattended Start Mode' allows the system to recover from the
loss of ac power.
If the system was powered-on when the ac loss occurred, the system reboots
when power is restored. If the system was powered-off when the ac loss
occurred, the system remains off when power is restored.
You can access this service aid directly from the AIX command line, by typing:
/usr/lpp/diagnostics/bin/uspchrp -b
Chapter 6. Introducing Tasks and Service Aids 115