Hello Fernando Carnero,   The error shows: disk drive line Unknown is not compatible with system.   Did you contact Sales and ask for SC8000 drives?   The firmware is loaded at purchase when you specify it is for Compellent SC8000.   It looks like the drives you have do not have compatible firmware.   I would recommend contact Sales and specify you need drive for SC8000.  
SC8000: Problem to replace a HDD.