I have posted before regarding a VMWare solution we are looking at putting in place, i am currently looking into failover options.
We have purchased VMWare essentials plus to provide 2 physical hosts with virtual machines. 1 physical host would be used as the primary host with primary servers and the secondary server as failover. These are conected via iSCSI to an external NAS (which is also duplicated over to a secondary NAS for backup) Please can you confirm the best way to enable failover in this setup is to use vSphere HA, or would clustering also be required through vCenter? In the event of the primary host failing then the secondary server would boot up and take over.