Well, i found some of what i was looking for if i do a custom view on the VM itself. It lists the historical data and the new stuff on the same graph which is what i was looking for. The old storage was spinning media, the new is solid state so i wanted to see speed differences during real production loads. I liked the "Stacked VM" view from the storage perspective because i could compare iops across VMs to see if one was affecting another, but i dont seem to have that historic data any more. The VM i moved doesnt show up onthe old san, even when i do a custom period where it was on that datastore. Thanks!