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. 29, 2019
Filed:
Mar. 01, 2016
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Assignee:
HITACHI LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 11/16 (2006.01);
U.S. Cl.
CPC ...
G06F 3/065 (2013.01); G06F 3/061 (2013.01); G06F 3/067 (2013.01); G06F 3/0619 (2013.01); G06F 3/0683 (2013.01); G06F 11/16 (2013.01);
Abstract
A storage system according to the present invention includes a first storage device configured to receive a command from a command issuing apparatus, a second storage device configured to manage target data of the command, and a third storage device configured to form a copy pair with the second storage device for the target data and store the target data. When the target data is forwarded from the first storage device to the third storage device through the second storage device and stored in the third storage device, the second storage device stores the target data therein so that the target data is redundantly stored in the second storage device and the third storage device.