HP A7143A RAID160 SA Controller Support Guide

Troubleshooting
Event Monitoring Service (EMS)
Chapter 6 113
Event Monitoring Service (EMS)
Event Monitoring Service (EMS) notifies a system administrator when
an event occurs on the system.
A hardware event monitor monitors the hardware for unusual behavior
(known as an event) and sends a message to the Event Monitoring
Service, which notifies the system administrator of the event, along with
suggestions for correcting the problem. This service is available for the
RAID160 SA controller.
For detailed information on how hardware monitors work, go to
http://www.docs.hp.com , click on “Browse by topic” then go to the
“Diagnostics” section to locate EMS information.