About these SAN models, if any HDD fault occur, here it is relative substitution procedure:
Affected devices
Compellent (SC, SCv & FS Series), Dell Compellent SC4020, Dell Storage SC8000, Dell Storage SCv2000, Dell Storage SCv2020, Dell Storage SCv2080, Dell Storage SC5020, Dell Storage SC5020F, Dell Storage SC7020, Dell Storage SC7020F, Dell Storage SC9000 , Dell Storage SCv3000, Dell Storage SCv3020