check primary role of ESX hosts in HA cluster

For VMware High Availability to work, one ESX host in a cluster has the role of fail-over coordinator assigned. This role can be performed by a ESX host having the primary role. 5 servers in a cluster will have this role.
To check the role of the ESX hosts in cluster, perform the following command :cat /var/log/vmware/aam/aam_config_util_listnodes.log