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:
Sep. 27, 2022
Filed:
Aug. 14, 2020
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Assignee:
HITACHI, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0659 (2013.01); G06F 3/0608 (2013.01); G06F 3/0641 (2013.01); G06F 3/0653 (2013.01); G06F 3/0658 (2013.01); G06F 3/0673 (2013.01);
Abstract
Provided is a storage system in which a compression rate of randomly written data can be increased and access performance can be improved. A storage controllerA includes a cache areaA configured to store data to be read out of or written into a drive. The controllerA groups a plurality of pieces of data stored in the cache areaA and input into the drivebased on a similarity degree among the pieces of data, selects a group, compresses data of the selected group in group units, and stores the compressed data in the drive