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Dell VxRail Network Planning Guide
Introduction Planning your data center network for VxRail VxRail cluster types VxRail feature-driven decision points VxRail hardware and switch selection decision points Prepare data center for VxRail implementation Planning the VxRail cluster implementation Planning vSAN Witness Networking
Introduction
Overview of vSAN Witness for VxRail stretched cluster
Overview of vSAN Witness for VxRail 2-node cluster
Networking rules for vSAN witness and VxRail
Reserve Network Settings for vSAN Witness Networks
Planning VxRail Satellite Nodes Networking Configure the network for VxRail Preparing to build the VxRail cluster VxRail network considerations after implementation Appendixes

Overview of vSAN Witness for VxRail 2-node cluster

Overview of vSAN Witness for VxRail 2-node cluster

  • 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 utilize 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
       

    DiagramDescription automatically generated

    Figure 61.    2 Node cluster with local vSAN witness