I use robocopy to back up everything to my NAS, and I'm generally happy with the results.
There's something I want to do that would make the process even better.
Here's the problem... I do daily backups. Once in a great while, a file in one of my source folders will get deleted. The way I'm using robocopy (/purge), that file will be deleted from the destination folder. Generally, this is necessary to control the size of the backup.
Then, once I realize that I needed that deleted file after all, it is of course gone from both the source AND destination folder. This doesn't happen often, but it happens occasionally and has sometimes been a real problem. I run monthly backups to another destination as well, mainly for this reason.
What I would like to do is to find some way to get robocopy (or any other utility), once it identifies a destination file/folder that's not in the source, NOT to simply delete it but to move it to another destination.
Has anyone had any success doing someting like this?