IBM H80 Series Run-Time Memory Page Deconfiguration Memory Gard, System Firmware Surveillance

attempt	to migrate	all resources associated with that processor to another proce
and then	stop the	defective processor.

Run-Time Memory Page Deconfiguration (Memory Gard)

Correctable errors in system memory are monitored and tracked. When a predefined error threshold is met, an error log with warning severity is returned to AIX. memory page will be deallocated by AIX.

Service Processor System Monitoring - Surveillance

Surveillance	is a	function in which the service processor monitors the system, and
the system monitors the service processor. This monitoring is accomplished by
periodic	samplings	calledheartbeats.

Surveillance is available during two phases:

Ÿ System firmware bringup (automatic)

ŸOperating system runtime (optional)

System Firmware Surveillance

System firmware surveillance is automatically enabled during system power-on. It cannot be disabled by the user.

If the service processor detects no heartbeats during system IPL (for 7 minute cycles the system power to attempt a reboot. The maximum number of retries is

from the service processor menus. If the	fail	condition persists, the service
processor leaves the machine powered on,	logs an	error,	and	displays	menus to th
user. If Call-out is enabled, the service	processor calls		to	report the failure
displays the operating-system surveillance failure		code on	the	operator	panel.

Chapter 3. Using the Service 71Processor