AMQ7: Creating a cluster of three master-slave pairs with shared-nothing replication and static discovery

Issue

An AMQ7 cluster with three master-slave broker pairs is particularly relevant to customers, because it is the minimum shared-nothing (i.e., no shared message store) configuration that is fully robust in network partition ("split brain") scenarios. However, the main product documentation does not explain in detail how to set up this configuration for static discovery. The information in this note is intended to supplement the main product documentation in this area.