1.3. About JBoss EAP 6 Operating Modes
JBoss EAP 6 provides two operating modes for JBoss EAP 6 instances: standalone server or managed domain.
The two modes differ in how servers are managed, not in their capacity to service end-user requests. It is important to note that the high-availability (HA) cluster functionality is available via either operating mode. A group of standalone servers can be configured to form an HA cluster.