Events, alarms, and system monitoring
vSphere includes a configurable subsystem of events and alarms. This subsystem is able to track what's happening in the environment, let administrators know about unusual activity, and respond automatically to certain situations. Important system events that are matched to appropriate alarms and the responses that are configured properly all together play an important role in system monitoring.
Alarms and events
Each time a user or system action occurs, vSphere records this as an event and stores this data in the event log and vSphere database.
Examples of such events are as follows:
High host or VM memory or CPU usage
Lost connection to a host or datastore
User log ins
A virtual machine is powered on
Each event record consists of different details about the event, such as the following:
Who generated the event
Timestamp
What type of event it is: information, warning, or error
Alarms are notifications about events. Each alarm has a definition that consists of the...