Based on the root cause of the problem, and the solutions that you used to fix the problem, you can create a new alert definition for vRealize Operations Manager to alert you. When the alert is triggered on your host system, vRealize Operations Manager alerts you and provides recommendations on how to solve the problem.

To alert you before your host systems experience critical capacity problems, and have vRealize Operations Manager notify you of problems in advance, you create alert definitions, and add symptom definitions to the alert definition.

Resolve the problem. See User Scenario: Fix the Problem.


In the left pane, click Content > Alert Definitions.


Enter capacity in the search text box.

Review the available list of capacity alert definitions. If a capacity alert definition does not exist for host systems, you can create one.


Click the plus sign to create a new capacity alert definition for your host systems.


In the alert definition workspace, for the Name and Description, enter Hosts - Alert on Capacity Exceeded.


For the Base Object Type, select vCenter Adapter > Host System


For the Alert Impact, select the following options.




Select Risk.


Select Immediate.

Alert Type and Subtype

Select Application : Capacity.

Wait Cycle

Select 1.

Cancel Cycle

Select 1.


For Add Symptom Definitions, select the following options.



Defined On

Select Self.

Symptom Definition Type

Select Metric / Supermetric.

Quick filter (Name)

Enter capacity.


From the Symptom Definition list, click Host System Capacity Remaining is moderately low and drag it to the right pane.

In the Symptoms pane, make sure that the Base object exhibits criteria is set to All by default.


For Add Recommendations, enter virtual machine in the quick filter text box.


Click Review the symptoms listed and remove the number of vCPUs from the virtual machine as recommended by the system, and drag it to the recommendations area in the right pane.

This recommendation is set to Priority 1.


Click Save to save the alert definition.

Your new alert appears in the list of alert definitions.

You have added an alert definition to have vRealize Operations Manager alert you when the capacity of your host systems begins to run out.

Create dashboards and views for future investigation.