Domain Name System (DNS) connection optimization

Connection optimization is a technique that uses DNS to balance IP connections and workload in a sysplex domain. In DNS terms, a sysplex is a subdomain that you add to your DNS name space. Connection optimization extends the concept of a “DNS host name” to clusters, or groups of server applications or hosts. Server applications within the same group are considered to provide equivalent service. Connection optimization uses load-based ordering to determine which addresses to return for a given cluster.