[1]University of South China,Hengyang,Hunan,China;
[2]Hengyang Normal University,Hunan,China;
[1]University of South China,Hengyang,Hunan,China;
[3]College of Information and Computer Engineering,Northeast Forestry University,Harbin,China;
Big data; H-Code; RAID expanding; Horizontal coding; Anti-diagonal parity; Horizontal parity;