I have been trying to view the Disk I/O for a particular datastore and it always comes back as NO DATA
The other data stores seem to work fine, they are all configured the exact same way.. (I think)
The only difference I can see is that the VM's that are on this datastore do not have any VMware tools installed. (OLD Unsupported OS, Appliance)
So just wondering if you have to have VMware tools installed for this data to populate or am I missing something else.