Você não precisa fazer nada. O controlador lida com isso em segundo plano.
Este também é um recurso dos controladores fakeraid Dynamic Smart Areay.
Smart Array controllers perform a background surface analysis during inactive periods, continually scanning all drives for media defects. Smart Array controllers can also detect media defects when accessing a bad sector during busy periods. If a Smart Array controller finds a recoverable media defect, the controller automatically remaps the bad sector to a reserve area on the disk drive. If the controller finds an unrecoverable media defect and you have configured a fault-tolerant logical drive, the controller automatically regenerates the data and writes it to the remapped reserved area on the disk drive.