We have an exchange 2013 server with a second drive for storing the mailbox DBs. The drive itself is 115GB, and the mailbox DBs only total about 41GB when I analyze the properties of the folders. We have the DBs being backed up with DPM, with a full backup daily and incremental every 2 hours. I have enabled viewing hidden files, but still don't see what is using the extra 70+GB.
So how do I find out what is using the space and clear it up?
