Enabling Users to Select Datacenter Locations in vRA (a.k.a vCAC)

The Display location on request check box on the Blueprint Information tab allows users to select a particular datacenter location at which to provision a requested virtual or cloud machine. For example, if you have an office in London and an office in Boston, you might have compute resources and business groups in both locations. By enabling the Display location on request check box, your business group users can choose to provision their machines with the resources that are local, for example. The following is a high-level overview of the sequence of steps required to enable users to select datacenter locations: 

1. A system administrator adds datacenter location information to a locations file. 

2. A fabric administrator edits a compute resource to associate it with a location. 

3. A tenant administrator or business group manager creates a blueprint that prompts users to choose a datacenter location when submitting a machine request. 

Associate a Compute Resource with a Location 

Fabric administrators associate compute resources to datacenter locations before tenant administrators and business group managers can prompt machine requesters to select a datacenter location at provisioning time. 

Prerequisites 

1. Log in to the vRealize Automation console as a fabric administrator. 

2. Your system administrator must add datacenter locations to a locations file. See System Administration. 

Procedure 

1. Select Infrastructure > Compute Resources > Compute Resources. 

2. Point to the compute resource to which you want to add a location and click Edit. 

3. Select a datacenter location from the Locations drop-down menu. 

4. Click OK. 

5.Repeat this procedure as necessary to associate your compute resources to locations. 

Tenant administrators and business group managers can set the Display location on request option on blueprints to prompt users to select a data location when requesting a machine. 

Removing Datacenter Locations 

To remove a datacenter location from a user menu, a system administrator must remove the location information from the locations file and a fabric administrator must remove location information from the compute resource.

For example, if you add London to the locations file, associate ten compute resources with that location, and then remove London from the file, the compute resources are still associated with the location London and London is still included in the location drop-down list on the Confirm Machine Request page. To remove the location from the drop-down list, a fabric administrator must edit the compute resource and reset the Location to blank for all compute resources that are associated with the location. The following is a high-level overview of the sequence of steps required to remove a datacenter location:

The following is a high-level overview of the sequence of steps required to remove a datacenter location: 

1. A system administrator removes the datacenter location information from the locations file. 

2. A fabric administrator removes all the compute resource associations to the location by editing the locations of each associated compute resource. 

Remove a Datacenter Location  

Fabric administrators must remove all associations to a datacenter location before it stops displaying to machine requesters as a datacenter location option.

Prerequisites
1. Log in to the vRealize Automation console as a fabric administrator.
2. Your system administrator removes the datacenter from the locations file. See System Administration
  
Procedure
1.  Select Infrastructure > Compute Resources > Compute Resources.
2.  Point to a compute resource associated with the location you want to remove and click Edit.
3. Remove the datacenter location by selecting the blank option in the Locations drop-down menu.
4.  Click OK. 5 Repeat this procedure to remove the location from all of your compute resources

After the datacenter location is removed from all compute resources, it no longer appears to machine requesters in the locations drop-down menu.

Source:-
VMware Documetation