To see all physical servers in your Parallels H-Sphere cluster, go to E. Manager -> Servers -> P.Servers:

From this page you can:
You can disable monitoring information for this server to preserve resources of the system. To do this, click the physical server title on the page E. Manager -> Servers -> P.Servers. Scroll down and click the button against Enable server info monitoring:
When this service is enabled, you can also view, from the System Information page, which packages and services are installed on the system and perform system service management.
See also: