For improving the reliability of the data stored up, this paper brings forward an improvement scheme. It expands the error correction from One-dimensional (1-D) model to Three-dimensional (3-D) model. This thesis has listed and has analyzed three models' (1-D, Two-dimensional (2-D) and 3-D) structure method and their error correction process, and from all-round aspects to compare the three kinds of models by using a procedure to simulate the actual error correction process. From large amount of result, we can see that the error correction ability of the advanced model has improved greatly comparing with the original model, and by optimizing the error correction process, the time of accomplishing error correction process has fallen to the lowest point, and has reached an agreeable level. Finally, by comparing the advanced model with RAID1 [1], testify further the reliability of the advanced model.