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 vSAN witness at a third site, or a vSAN witness deployed local to the VxRail cluster.
- Since there are only two nodes in this cluster type, the VxRail management, vSAN and vMotion networks can be placed on Layer 2 networks between the nodes.
- If the vSAN witness is to be deployed local to the two VxRail nodes, Layer 2 can be used for the Witness Traffic Separation network.
- A vSAN witness at a remote site can also be considered to support a VxRail 2-node cluster.
Figure 65. 2-node cluster with local vSAN witness