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Dell VxRail Network Planning Guide
Introduction Plan the VxRail network VxRail Cluster Types VxRail feature-driven decision points VxRail hardware and switch selection decision points Prepare the data center to implement VxRail Plan the VxRail cluster implementation Planning vSAN Witness Networking
Planning vSAN Witness Networking
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 Prepare to build the VxRail cluster VxRail network considerations after implementation Appendix A: VxRail Network Configuration Table Appendix B: VxRail Passwords Appendix C: VxRail cluster setup checklist Appendix D: VxRail Open Ports Requirements Appendix E: VMware VDS port group default settings Appendix F: Physical Network Switch Examples

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 use a compatible vSAN witness at a third site, or a vSAN witness deployed local to the VxRail cluster.

    As there are only two nodes in this cluster type, the VxRail management, vSAN, and VMware vSphere 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 62. 2-node cluster with local vSAN witness. 2-node cluster with local vSAN witness.
    2 Node cluster with local vSAN witness