InformationPOA operates with a large number of services installed on different servers. The same service, such as Apache, for example, may be installed on multiple servers.
In order to determine which server is running a particular service, open the Services sub-menu in POA PCP via System Director > Configuration Manager.
Search for the desired service. In the column Host, you can find where this service is installed. In the column Current state, you will see the service status.
If the service status is Active, POA will be able to use it for provisioning the service.