To begin the example scenario, you must navigate to the Alarm Definitions page. You can view alarm settings from any object, but you can modify settings only through the vCenter Server object on which the alarm is defined.


In the vSphere Web Client, connect to the vCenter Server system named My vCenter Server 5.1.


Select the vCenter Server object in the object navigator.


Click the Manage tab, and click Alarm Definitions.


Select Datastore usage on disk and click Edit.

To continue with the example scenario, use the Datastore usage on disk - Edit wizard to set trigger conditions and actions for the alarm. You select specific settings that let the alarm send you an email when datastore usage reaches a certain threshold.