With VxRail, you will have 1 VxRail MGR VM per cluster.  That VM is static in size, meaning you don't need to add more CPU, RAM or Storage to the VxRail MGR VM as you scale the cluster or add features to the system.  The VM will also run on the cluster itself (you can't have it run on another cluster).   The network planning guide - [URL] - may help with some of this.   There's also the VxRail vCenter planning guide that may help - [URL]   
Hi, I am about to get my first VxRails and I am struggling to find a clear answer to this. With a VxRail 7.x deployment using an external vCenter Server deployment, if I have multiple VxRail clusters will I have one VxRail Manager (for all clusters) or will I have one VxRail Manager PER cluster? I cannot find a document that explains how multiple clusters in the same vCenter Server are deployed/managed. We will have 3 clusters. A Management Cluster (5 E560F nodes) and two Workload Clusters (8 V570F nodes each; 1 WL cluster will have NVIDIA GPU's). Do I need to plan IP/DNS for 3 VxRail Manager VM's? If so, must each VxRail Manager VM live in the cluster it is managing or can I put all of my VxRail Managers in the one Management Cluster? If there is a document that someone can point me to with a specific reference I would be so happy. Thanks Pin  
Relationship between VxRail Manager VM's and VxRail Clusters?