1. A hardware acceleration apparatus for an iSCSI (internet small computer system interface) target system, the apparatus comprising: a local memory storing data transmitted between a disk storage device and a network system; a TOE (TCP/IP offload engine) controller performing offloading of a TCP/IP (transmission control protocol/internet protocol) stacked on a TCP/IP packet of data stored in the local memory; a network controller allowing data offloaded from the local memory to be transmitted to the network system using an iSCSI protocol or allowing data received from the network system to be stored in the local memory; and a disk controller storing and withdrawing data between the disk storage device and the local memory.