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.

Date of Patent:
Feb. 18, 2025

Filed:

Mar. 06, 2023
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Hiroki Fujii, Tokyo, JP;

Masahiro Arai, Tokyo, JP;

Akira Deguchi, Tokyo, JP;

Assignee:

Hitachi Vantara, Ltd., Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/14 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1464 (2013.01); G06F 11/1469 (2013.01); G06F 2201/84 (2013.01);
Abstract

Acquiring a snapshot of a logical volume involves generating snapshot-related catalog information including at least a location for storing actual data in the snapshot and a reference destination for identifying another snapshot in parent-child relation to the snapshot, and storing the actual data in the snapshot to the physical storage device and/or to the cloud service. In a case where at least one of a plurality of snapshots is to be designated and restored, catalog information is referenced to identify the storage location of the actual data and acquire the actual data stored in the physical storage device and the actual data not stored in the physical storage device from the cloud service.


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