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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 stretched cluster

Overview of vSAN Witness for VxRail stretched cluster

  • For a stretched cluster with sites across geographic distance, plan for the following network requirements:
    • The vSAN witness must be positioned in a separate failure domain to ensure resiliency.
    • The VxRail External Management Network must be stretched across the primary and secondary sites on a Layer 2 network to ensure proper connectivity for the management components if there is a failure.
    • The networks supporting the vSAN witness must be able to route between both VxRail cluster sites and the witness site.
    Figure 61. Stretched cluster with vSAN witness at third site. Stretched cluster with vSAN witness at third site.
    Stretched cluster with vSAN witness at third site