No, and in fact the datastore was removed, its the device listing that won't go away. To help illustrate the problem here is a screenshot of the existing datastores on ESX2:
It shows netapp1 through netapp4 and also netapp6. netapp5 is the datastore that was removed. But when I look at the devices I still see the LUN on just ESX2:
There should only be 5 netapp devices here, not six. The highlighted device was the old LUN which has since been removed from both of the other ESX servers and also the Netapp. This is what I'm stuck on, I can't figure out how to remove it.