luks won't change that at all, it'll still be at the md level overall. The main encryption modes used by luks will lose a block to bitrot and such but won't lo

luks won't change that at all, it'll still be at the md level overall. The main encryption modes used by luks will lose a block to bitrot and such but won't lose the rest of the drive. They essentially generate a new key (really a new IV/nonce I think?) for every block through various means. This is the only way to allow for random access to any part of the disk without having to decrypt the previous blocks, and rewriting the rest of the disk whenever you change a part in the middle. I think you can setup an authenticated luks mode, but I've not looked at it and that should catch errors but that's all it would do, catch them.