INFORMATION CONTROL DEVICE, INFORMATION STORAGE DEVICE, INFORMATION PROCESSING SYSTEM, AND INFORMATION CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To reduce deterioration in performance even when disk devices different in performance are used.SOLUTION: An information control device includes: host connection means that mediates connection to a host device; disk connection means that mediates connection to a plurality of disk devices; and redundancy control means that controls a redundant configuration of data using the disk devices, and arranges redundant data for the redundant configuration in the respective disk devices correspondingly to a performance ratio of the disk devices.