I'd like to backup 3 hard drives into 2. Problem is, that I have no clue how to configure deja dup so that it would compress the files that it fits. FYI the 3 hard drives I was talking about are internal, as well as one of the drives is internal but since there is no space left, the last one has to be external. The best way would be that only the internal one is to be backed up on.
Please help me with this matter I'd appreciate if you would answer fast.