RAID CONTROLLER FOR RAID LEVEL 5 ACCELERATION BY USING THE PARITY CACHE AND METHOD THEREOF

摘要

PURPOSE: A RAID(Redundant Array of Inexpensive Disks) control device for RAID level 5 acceleration using a parity cache and a method thereof are provided to increase a data transmitting speed and input/output numbers per second. CONSTITUTION: A parity cache memory(122) includes a binary cell and parity cells. The binary cell stores previous parity information. The parity cells include XOR gate. If the parity information is inputted, the XOR gate performs XOR on newly inputted parity information and previous parity information stored in the binary cell and stores the result in the binary cell. A parity cache controller(121) controls the parity cache memory.