Hi, can I add some HDD with plots to my farm or I need replotted them?
You can, but you also need to add the mnemonic used to create them.
Ive never done this, but others have, i can offer no help if you have issues.
Only if those plots are made with your keys, then no problem. If you don’t have the keys that created the plots, then they are useless
FORMAT Quick… and be done