Storage apparatus and data processing method for the same

Abstract

The present invention aims for efficient use of storage capacity in a storage system by reducing the amount of time taken for processing including removing redundancy and data compression executed with respect to transferred data. Focusing on data patterns included in transferred data, the most suitable pattern is detected, and de-duplication processing is gradually executed. Data compression is then executed with data after de-duplication as a target. Determination of the decision for execution of gradual de-duplication processing, or execution of compression processing is made depending on the amount of data remaining at each processing stage and the system load.

Dependencies are inferred from the claim text.