You have set up, triggered, and acknowledged the datastore usage alarm. Now, address the critical trigger condition and reset the triggered Datastore usage on disk - example alarm to reenable its actions.

Reset the alarm to enable vCenter Server to send email notifications for datastore usage to you.


Remove snapshots or virtual machines to reduce datastore usage to below 30%.


Right-click the Datastore usage on disk - example alarm in the Alarms pane and select Reset.

When datastore usage reaches 30% again, the alarm will be triggered and you receive an email notification.