The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Sep. 09, 2024
Hitachi Vantara, Ltd., Kanagawa, JP;
Masanori Takata, Tokyo, JP;
Mitsuo Hayasaka, Tokyo, JP;
Hitachi Vantara, Ltd., Yokohama, JP;
Abstract
A computer system includes a backup generation management program that executes generation deletion processing of deleting backup data and a management file corresponding to M generations (M is an integer of 1 or more), when a reduction cost to be reduced by a generation deletion processing is larger than a load cost. The generation deletion processing acquires differential data of the backup data corresponding to M generations from (N+1)th generation (N is an integer of 1 or more) to (N+M)th generations. The differential data is stored in a cloud storage and the Nth generation backup data is overwritten with the differential data. The management files are merged from Nth to (N+M)th generations and the management data is associated with the Nth generation backup data. Then, the backup data and the management files from (N+1)th to (N+M)th generations are deleted.