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:
Oct. 18, 2022
Filed:
Feb. 22, 2021
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Yunde Sun, Tokyo, JP;
Shunsuke Nishiyama, Tokyo, JP;
Goro Kazama, Tokyo, JP;
Yuri Hiraiwa, Tokyo, JP;
Naoyuki Masuda, Tokyo, JP;
Assignee:
HITACHI, LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 11/14 (2006.01); G06F 9/52 (2006.01);
U.S. Cl.
CPC ...
G06F 3/065 (2013.01); G06F 3/0619 (2013.01); G06F 3/0673 (2013.01); G06F 9/526 (2013.01); G06F 11/1469 (2013.01); G06F 2201/82 (2013.01);
Abstract
Backup data equivalent to the maximum number of generations to be held can be secured even when backup data is locked. When locking of prohibiting overwrite of one or more storage areas is performed, a backup server prepares a new backup management table and uses the backup management table and an archive management table, which is the past backup management table, to store the backup data equivalent to the maximum number of generations to be held into a storage system.