METHOD FOR DISTRIBUTIONALLY STORING DATA BASED ON DATA COMPRESSION RATIO PREDICTION SCHEME, MASS STORAGE APPARATUS AND MASS STORAGE SYSTEM USING THE SAME

摘要

A data distribution storing method based on data compression ratio prediction technique of the present invention comprises a step for enabling a massive storage device having first and second storing areas to receive an address and first unit data with a writing command from a host device; a step for enabling the massive storage device to estimating a prediction compression ratio of the first unit data based on Shannon byte entropy; a step for enabling the massive storage device to calculate a compression efficiency degree based on the estimated prediction compression ratio; a step for enabling the massive storage device to generate data which is compressed by compressing first unit data, divide the compressed data into at least one second unit data having a second unit for storing the compressed data in a first storing area, and store the divided second unit data in the first storing area when the calculated compression efficiency degree is bigger than a predetermined efficiency threshold value by comprising the calculated compression efficiency degree with the predetermined efficiency threshold value; and a step for enabling the massive storage device to divide the first unit data into at least one second unit data and store the divided second unit data in a second storing area when the calculated compression efficiency degree is smaller than the predetermined efficiency threshold value by comparing the calculated compression efficiency degree with the predetermined efficiency threshold value.