This graphic shows two clusters with three managed servers each. Server 1 in Cluster 1 contains DT Member 1; Server 2 in Cluster 1 contains DT Member 2; and Server 3 in Cluster 1 contains DT Member 3. Three messages are received by the DT (indicated by an arrow pointing from 3 messages to the entire DT). Each member contains all three messages, because they are forwarded among the members. Each member has a shared subscription. Cluster 2 has three managed servers. Each managed server has 3 MDB instances. Each shared subscription points to an MDB instance in each managed server. That is, there are 3 MDB instances in each server, and each subscription of each DT member points to one of them. For example, the shared subscription on DT Member 1 points to MDB Instance 1 on Servers 1, 2, and 3 in Cluster 2; the shared subscription on DT Member 2 points to MDB Instance 2 on Servers 1, 2, and 3 in Cluster 2; etc.