Deploy a 2-node vSAN cluster
A 2-node hyperconverged cluster is useful in branch office where you need high availability or for small infrastructure. With 2-node hyperconverged solution, you don’t need to leverage a NAS or a SAN for the shared storage. So, the hardware footprint is reduced and the manageability is improved because hyperconverged solution are easier to use than standard infrastructure with SAN. VMware provides a Software-Defined Storage solution called vSAN. vSAN can be deployed from 2 nodes to 16 nodes. 2-node cluster should be used for ROBO (Remote Office and Branch Office). A 2-node cluster requires a Witness Appliance provided by VMware freely while the appliance is virtual. The Witness Appliance is based on ESXi. This is the first time that VMware supports a scenario in production with a nested ESXi. This topic describes how to deploy a 2-node vSAN cluster and its witness appliance. Why you need a witness appliance vSAN is something like a RAID over the network. vSAN curre