The invention relates to a storage equipment partitioning device which comprises an inquiry module, a receiving module and a partitioning module, wherein the inquiry module is used for inquiring the information of storage equipment; the receiving module is used for receiving the information of the storage equipment and a partitioning instruction input by a user; and the partitioning module is used for partitioning the storage equipment according to the inquired information of the storage equipment, the partitioning instruction and a principle that one logic block only belongs to one subarea. The invention also provides a storage equipment partitioning method. Through the storage equipment partitioning device and the storage equipment partitioning method provided by the invention, one logic block of the partitioned storage equipment only belongs to one subarea to avoid damaging the data of two subareas and even a whole hard disk when one logic block is damaged.