@overviewer wrote:
But when I add my wife's 700GB mapped drive, suddenly I see Dropbox uploading and downloading 88,000 files! Apparently Dropbox is trying to put everything of my wife's drive on mine, and everything on mine on hers.
Personally, I don't think Dropbox is the service you want to use. Dropbox is a file sync service, meaning anything you place within the Dropbox folder on your computer is synced to your account online and to any other devices linked to your account. Likewise, anything placed in your account online or within the Dropbox folder on other linked devices will be synced back down to your computer.
That's the intended purpose of Dropbox, and although it has some backup-like functionality (and some "backup" functionality that I believe to be poorly implemented and not a true backup), it is not a file backup service, and it sounds like you are really after a true backup service.
That said, if you wish to continue using Dropbox for that purpose, I'd suggest looking into the Selective Sync and Smart Sync features. You can also look at the Computer Backup feature, but know that it's not a true backup, and instead moves certain folders into the Dropbox folder so they sync.
