MANAGEMENT APPARATUS AND MANAGEMENT METHOD FOR HIERARCHICAL STORAGE SYSTEM

摘要

The present invention enhances user usability by storing more files close to the user. A replication processing part 3A creates a replica of a prescribed file, which is in a first file management apparatus, in a second file management apparatus. A single instance processing part 3B selects as a duplicate data removal target another prescribed file in the first file management apparatus in accordance with a first prescribed condition, and converts the selected other prescribed file to a reference-source file, which references data of a prescribed reference file. A stubification processing part 3C selects a stubification candidate file, which constitutes a target of a stubification process, in accordance with a second prescribed condition, and executes stubification processing with respect to the stubification candidate file in accordance with a third prescribed condition.