IBM 6C4 - Manual (Page 132)

Configure Reboot Policy
This service aid controls how the system tries to recover from a system crash.
Use this service aid to display and change the following settings for the Reboot Policy.
Note: Because of system capability, some of the following settings might not be
displayed by this service aid.
v Maximum Number of Reboot Attempts
Enter a number that is 0 or greater.
Note: A value of 0 indicates ’do not attempt to reboot’ to a crashed system.
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.
v 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’.
v 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.
v 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.
v Enable Unattended Start Mode (1=Yes, 0=No)
When enabled, ’Unattended Start Mode’ allows the system to recover from the loss
of ac power.
114 pSeries 630 Model 6C4 and Model 6E4 User’s Guide