This is under Setting -> Storage and Retention > Storage
Removed the previous LUN that was being backed up, since we've shutdown that server. It had LUN #0 in the Unitrends list. So I removed it from the Unitrends list and thus removed it from the SAN also.
Needing to add a LUN to be backed up on the Unitrends appliance, I go through the process of adding it to the Storage Group on our SAN for the Unitrends appliance. It gets assigned LUN #0, so when I go to add that under Storage -> Protect VMs on a SAN. It shows up with the information of the previous LUN (show the size of 50GB instead of the current 350GB that it should be).
Any ideas on how to force Unitrends to refresh? I can click the online/offline button, but keeps showing the 50GB size.