Title:
制御装置、ストレージ装置、データ管理プログラム及びデータ管理方法
Document Type and Number:
Japanese Patent JP6572775
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently store information on redundancy removal in a memory.SOLUTION: A control device 1a comprises: a first determination part 13 for determining whether or not first data are redundantly written in both first and second virtual volumes; a second determination part 16 for, when it is determined that the first data are not redundantly written by the first determination part 13, determining whether or not the first data are written in the first or second virtual volume by using individual data information indicating the data written in the first or the second virtual volume; and an individual data registration part 17 for, when it is determined that the first data are not written in any of the first and second virtual volumes by the second determination part 16, registering information on the first data in the individual data information.SELECTED DRAWING: Figure 1
Inventors:
Toshihiro Ozawa
Application Number:
JP2016001967A
Publication Date:
September 11, 2019
Filing Date:
January 07, 2016
Export Citation:
Assignee:
富士通株式会社
International Classes:
G06F16/174; G06F3/06
Domestic Patent References:
| JP2014178939A |
Foreign References:
| WO2011033582A1 |
Attorney, Agent or Firm:
Yu Sanada