I am looking for (good) backup alternatives to the time machine of MacOS/OS X devices or file history on Windows machines. Actually what I am looking for is closer to Windows' solution than to the time machine.
This means I rather want to have a file history as in Windows Vista (and above AFAIK). On Windows Vista/7 this worked with Shadow copies, so this is exactly what I'd like to have:
So I want to save the backup/file history on the same drive (and probably partition, but that does not matter). I'd also save it on another internal drive, but not on an external one.
Is there such a solution for Linux or how can I best replicate this behaviour? That's why existing files should not be duplicated and a backup (copy of the file) should only be saved when I actually modify or remove it. This way it saves much space, especially for larger files, which you won't edit anyway. As opposed to rsync/backintime, where never-modified files are copied even with incremental backups.