
Installing and Using EMS
What are EMS HA Monitors?
What are EMS HA Monitors?
EMS HA Monitors (Event Monitoring Service High Availability Monitors) are a set of monitors and a monitoring service that polls a local system or application resource and sends messages when events occur. An event can simply be defined as something you want to know about. For example, you may want to be alerted when a disk fails or when available filesystem space falls below a certain level. EMS allows you to configure what you consider an event for any monitored system resource.
The advantage EMS has over
EMS HA Monitors consist of a framework, a collection of monitors, and a configuration interface that runs under SAM (System Administration Manager). The framework starts and stops the monitors, stores information used by the monitors, and directs monitors where to send events. A standard API provides a way to add new monitors as they become available, or to write your own monitors; see the document Writing Monitors for the Event Monitoring Service (EMS) available from the high availability web site: http://www.hp.com/go/ha
Figure | Event Monitoring Services High Availability Monitors |
Client, such as
SAM interface to EMS, MC/ServiceGuard package configuration
Target, such as
IT/Operations,
MC/ServiceGuard
Framework
Registrar
| Resource |
API | dictionary |
|
System and
application
MONITORSresources
12 | Chapter 1 |