Using the Event Monitoring Service (November 1999)

Chapter 1 13
Understanding the Event Monitoring Service
Event Monitoring Service Overview
This option does not require any extra handling. Specify the email
address when the monitoring request is created.
— syslog and textlog
This option does not require any extra handling. Specify the log
file when the monitoring request is created. Syslog notifications go
to the local system.
— console
This option does not require any extra handling. Specify the
console when the monitoring request is created. Notifications go to
the local system.
— ServiceGuard
This option requires that the client and target application both be
ServiceGuard running on the same local system.
• Resource Monitors
Resource monitors observe designated resources and report back
resource values or events to the Event Monitoring Service.
Hewlett-Packard provides monitors with the High Availability
Monitors package and with the Event Monitoring Service. The
monitors available through Hewlett-Packard include: HA Database
Monitor, HA Disk Monitor, HA Cluster Monitor, HA Network
Interface Monitor, and HA System Resource Monitor.
• Event Monitoring Service Framework
The EMS Framework provides the interface between the client
applications, monitors, and target applications.
The EMS Framework contains the Applications Programmers
Interface (API), registrar, and the Resource Dictionary.
Developers use the API to create additional monitors for use with
client and target applications, such as the EMS GUI or ServiceGuard.
Monitor components to be created include: resource dictionary,
resource monitor binary file, man page (recommended), message
catalog (recommended)
Figure 1-1 shows the relationships between the Event Monitoring
Service components.