@rmbuan sort of - if you move the drives and assign them the same drive letters, when you get the new internal drives they MUST be on different drive letters than you've used before, or you have to use advanced mode and assign the starting nonce.
@rmbuan For the seagates I would recommend copying the plots from the 4TB drives to the 8TB drives. Since the SMR Seagates are painfully slow to plot. Also I would just give the plotting machine the most amount of CPU you can so that it plots single plots faster so that once it finishes you can start mining those finished plots right away instead of waiuting for all the drives to finish.