embed-server --server-config=standalone-ha.xml

# remove dynamic-load-provider
/subsystem=modcluster/mod-cluster-config=configuration/dynamic-load-provider=configuration:remove

# add simple-load-provider with factor=1 to assure round-robin balancing
/subsystem=modcluster/mod-cluster-config=configuration:write-attribute(name=simple-load-provider, value=1)