To set up your virtualized environment:
Install the ESXi hosts, including the SAN and LAN driver software.
Configure the networks.
Prepare the SAN.
Set up two disks that you will use for the split-brain detector (SBD) for the cluster.
This allows you to mirror the SBD for cluster fault tolerance.
Set up the shared storage and allocate the disks to the ESXi host.
Create 64-bit virtual machines.
Install OES on the virtual machines.
Configure NCS to create a cluster on the first node, then on the other nodes to add them to the cluster.