I back up my flash drive onto a portable external hard drive, then backup that external hard drive to FreeNas, however each time I just copy the contents of the external drive to FreeNas, since the contents of the external drive change as I add, delete or update data on it I don't know what has changed and what hasn't since my last backup to FreeNas.
Is there any way I can backup only the data that has changed, so it should take a lot less time? Is it something FreeNas can do or will I need a 3rd Party program?
Is there any way I can backup only the data that has changed, so it should take a lot less time? Is it something FreeNas can do or will I need a 3rd Party program?