I have an array of multiple drives primarily 3tb and 6tb with 6tb parity. One of my 3tb drives have failed, and i have bought 2 new 8tb drives. What is the right approach to this array upgrade without loosing any data?
Failed 3tb drive -> New 8tb drive -> rebuild new drive from parity -> swap parity drive from 6tb to 8tb -> build parity ->optional swap old 3tb drive with old 6tb parity.
Or should I copy content from failed 8tb drive to external drive and replace failed drive and parity drive at the same time...or perhaps another approach?
Tia