Book Image

Implementing VMware vCenter Server

By : Kostantin Kuminsky
Book Image

Implementing VMware vCenter Server

By: Kostantin Kuminsky

Overview of this book

Table of Contents (16 chapters)
Implementing VMware vCenter Server
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

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...