The Optimize vSAN Deployments dashboard provides you with an easy way to move virtual machines from existing storage to newly deployed vSAN storage.
You can use this dashboard to select non-vSAN datastores that might not serve the virtual machine IO demand. By selecting the VMs on a given datastore, you can identify the historical IO demand and the latency trends of a given virtual machine. You can then find a suitable vSAN datastore which has the space and the performance characteristics to serve the demand of this VM. You can move the virtual machine from the existing non-vSAN datastore to the vSAN datastore. You can continue to watch the utilization patterns to see how the VM is served by vSAN after you move the VM.