Before you purchase new hardware, you can create a hardware change project using scenarios to determine if the purchase is necessary. To determine the effect of adding, removing, or updating the hardware capacity in a cluster, create a project that models changes to hosts and datastores.

In vRealize Operations Manager, verify that the Projects tab is open.


Select the target host in the inventory panel.

The target host is where you simulate changes to the environment to examine possible outcomes.


Click the Projects tab and click the Add New Project icon.


From the Projects workspace, enter the name and a description of the project.


Select the Planned status.


Click Scenarios to add scenarios to this project.


Select the add Datastore scenario and drag it to the Scenarios pane.


In the Configuration pane, enter the general parameters for the scenario.


Click datastore options to modify the disk space use and disk space allocation.


Click Apply to see the effect in the project workspace when your configuration selections are complete.


Click Save to add the scenario to the project.


Click Close to close the Project Workspace.

vRealize Operations Manager applies the scenario to the view that you selected. The scenario forecast appears in the chart as a gray dotted line. You can compare the actual current capacity to the expected capacity if you apply the changes you specified in the hardware change scenario.