This process monitor watches for the ACPI Daemon process to be running.
A failure indicates that the acpid service is down.
Check the service on the system by running ps -ef | grep acpid or by viewing the diagnostic in the Operations Manager Console. Start it by running the command "/usr/sbin/acpid" or by clicking the recovery link in the Operations Manager Console.
For root cause analysis, first check the system logfiles (/var/log/messages) and (/var/log/acpid), and view any related entries at the time of failure.