Time Machine over SMB
by Antoine - Categories : OS Apple
Since OS X 10.7 Lion, sparse bundle images mounted over a SMB share doesn't automatically appears in the Time Machine drives list as they did in previous versions of the OS.
The hack is to do it manually in the shell.
$ sudo tmutil setdestination -p /Volumes/TMVolume/
Where TMVolume is to replace with your sparse bundle image mounted over smb network drive.