Currently have added a disk controller to may array server, with capacity of 8tb 4 slots, added 3 disk @ 6tb, 1tb and 6tb...as each additional disk was added I keep getting a rebuild on disk 5 after preclear is finished on newly installed disk, the rebuild is averaging 2.8mb/s need to know if this is normal or if there is a fix. Also during the rebuild unable to play movies on the Plex server. Currently disk 5 is being rebuilt with error, disk 6 okay running fine no error, disk 7 running good but with errors. When I originally installed disk 5 I had to do a rebuild, but it took only 17hour @ about 98mb/s.