The vRealize Hyperic GemFire View for a Distributed System displays Servers in the DS, Gateways in the DS, and Clients connected to the DS.
The table in the middle of the GemFire View for a DS displays inventory properties and last reported metric values for each server (including Cache Servers, Gateway Hubs and Application Peers) the DS.
Servers in the DS - The number of Cache Servers, Gateway Hubs and Application Peers in the DS.
Gateways in the DS - If the DS is part of a multi-site deployment, the number of Gateways in the DS's Gateway Hub.
Clients connected to the DS - The number of clients (Cache Servers, Gateways, or Application Peers) in other Distributed Systems that are connected to the DS.