I have an exchange 2013 server running in hyper-v with over a TB of disk space allocated to it. In the last month it has maxed out on space causing it to go into a critical condition. I removed the old mailboxes and we are now down to 9 mailboxes. I can't find out what is using up all the rest of the space. I need the space back to reclaim it and free it up.
Any tips and tricks to help with it?
FYI - VSS is not running and according to the single mailbox database size is only 130GB large.