Address assignment method in hard disk drive

The present invention relates to an address allocation method is high-speed accessible according to a hard disk drive configured memory and platter to the hybrid structure, the method according to the invention, from the hard disk drive configured memory and platter to the hybrid structure, the received data If the address included in the read / write command, a predetermined reference value or less, the step of converting an address to access a memory address format of the memory; Unless the address contained in the data read / write command, a predetermined reference value or less, it is possible to operate the hard disk drive to, a faster rate includes a step of converting an address to access the address format of the platter as the platter.