Dell VxRail Network Planning Guide

Reserve IP addresses for VxRail-managed VMware vSphere vMotion network

An IP address is required for the VMware vSphere vMotion network for each ESXi host in the VxRail cluster.

A private address range is acceptable if you decide the VMware vSphere vMotion network is not routable. If your plans include the ability to migrate VMs outside of the VxRail cluster, consider it while selecting the IP address scheme.

From VxRail 7.0.010 and later, you can choose to have the IP addresses assigned automatically during the VxRail initial build, or manually select the IP addresses for each ESXi host. If the VxRail version is earlier than 7.0.010, the auto-assignment method by VxRail is the only option. For the auto-assignment method, the IP addresses for VxRail initial build must be contiguous, with the specified range in a sequential order. The IP address range must be large enough to cover the number of ESXi hosts planned for the VxRail cluster. A larger IP address range can be specified to cover for planned expansion.

If your plans include expanding the VxRail cluster to deploy nodes in more than one physical rack, you can either stretch the IP subnet for vMotion between the racks, or use routing services in your data center instead for a multirack cluster.

For the manual assignment method, record the IP addresses.

Enter the subnet mask and gateway. You can use the default gateway that is assigned to the VxRail External Management network, or enter a gateway that is dedicated for the VMware vSphere vMotion network.