
Installing and Using EMS
What are EMS HA Monitors?
Monitors are applications written to gather and report information about specific resources on the system. They use system information stored in places like /etc/lvmtab and the MIB database. When you make a request to a monitor, it polls the system information and sends a message to the framework, which then interprets the data to determine if an event has occurred and sends messages in the appropriate format.
EMS HA Monitors work best in a high availability environment; it aids in quickly detecting and eliminating single points of failure, and monitors resources that can be used as MC/ServiceGuard package dependencies. However, EMS HA Monitors can also be used outside a high availability environment for monitoring the status of system resources.
A set of monitors is shipped with EMS: disk, cluster, network interface, and system resource monitors. Other
Chapter 1 | 13 |