I have accidentally killed my backup and now start from scratch. Terabytes. Now I can’t backup all at once, because I need to turn off the computer in my absence.
Does it always, on continue, read and compare whole file contents of the already writte backup? That would be a death sentence for this kind of backup. Because at my r/w speeds, when e.g. it wrote 6 hours, on continue it would first read data for 3 hours, without writing a bit. Which seems to be the case.