I am here asking whether it is doable what i am going to explain.
Customer has a AFF-A300 system with just one disk shelf DS224C with ADP-RD2 deployed.
Due to the size of current root-partitions, it is not possible to make a Hardware controller upgrade using ARL (Aggregate ReLocation).
So, my thinking is to sell a new AFF-A700 with only 6 new SSD for both new root aggregates (aimed for both nodes).
And after that, take the disk shelf DS224C that is connected to AFF-A300 two nodes, and hook it up to this AFF-A700.
And after that, in maintenance mode, discover the 24SSDs units from DS224C, assign the partitions accordingly to A700 nodes, and import them (data aggregates) assuming they are in foreign status (or similar).
In reality, i don't care much about old root partitions; what i do mind is the data-partitions because i dont want losing information (luns/vols).
is my thought doable in ONTAP9.9.1?
it has been many years back since i dont issue CLI commands. So, i prefer asking first how doable is my plan of actions.