Dell VxRail Network Planning Guide

Witness for VxRail 2-node cluster with VMware vSAN

For a VxRail 2-node cluster, it is not necessary to place the nodes at separate sites across geographic distance. This type of cluster can use a compatible VMware vSAN witness at a third site or a vSAN witness deployed local to the VxRail cluster.

The VxRail management and VMware vSAN nodes are the only two nodes in this cluster. VMware vSphere vMotion networks can be placed on Layer 2 networks between the nodes. If the VMware vSAN witness is deployed local to the two VxRail nodes, Layer 2 can be used for the WTS network. A VMware vSAN witness at a remote site can support a VxRail 2- node cluster.