Say a disk is full with three equal-length partitions. It could be any type of disk: an SDD, an HDD, anything. In my mind, moving a partition is taking every bit of it and placing it elsewhere, until the whole partition is moved. That's why the process takes so much time for large partitions. Now, what if one were to try and swap the first and last of the three earlier-mentioned partitions? If the first partition is moved first, then the last will be overwritten. If the third partition is moved first, than the first partition will be overwritten. Is RAM the magic key, here? Up to what point does having more RAM speed up the process?
P.S. This is a theoretical question. I'm not actually interesting in swapping partitions on a full disk.
