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Dell VxRail Network Planning Guide
Introduction Plan the VxRail network
Plan the VxRail network
VxRail clusters and nodes
Network switch
VxRail relationship with the Ethernet switch VxRail node discovery and the Ethernet switch Basic switch requirements Switch performance considerations Storage network considerations Network redundancy and performance considerations
Data center network
Routing services
VxRail networking port options
VxRail Ethernet adapter options
VxRail FC adapter options
VxRail RoCE adapter options
VxRail DPU options
VxRail node connectivity options
VxRail networking rules and restrictions
Topology and connections
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 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

VxRail node connectivity options

VxRail node connectivity options

  • For VxRail clusters that can tolerate a single point of failure and do not have demanding workload requirements, the VxRail cluster can be configured using only the Ethernet ports on the NDC or OCP. Starting with version 7.0.130, for workloads that require a higher level of failure protection, VxRail supports spreading the networks across NDC or OCP Ethernet ports and Ethernet ports on PCIe adapter cards.

    The custom network option provides flexibility with the selection of the Ethernet ports to support the VxRail cluster networking. The cluster can be deployed using either the default network profiles that are supported in VxRail, or you can select the Ethernet ports for the cluster and assign those ports to the VxRail networks. There is more flexibility with the customized port selection option, since you can use just the ports on the NDC or OCP, mix the ports from the NDC or OCP and a PCIe adapter card, or select only ports from PCIe adapter cards. For more details, see Appendix F: Physical Network Switch Examples to understand the most common node connectivity options.

    Figure 15. Mixing NDC/OCP and PCIe ports to support a VxRail cluster . Mixing NDC/OCP and PCIe ports to support a VxRail cluster
    Mixing NDC/OCPand PCIe portsto support a VxRail cluster

    If change the topology by migrating the VxRail networks onto other uplinks on the VxRail nodes, you can perform this activity after the cluster is built, as long as the VxRail cluster is at VxRail 7.0.010 or later.