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:
Aug. 13, 2024
Filed:
Sep. 09, 2022
Hitachi, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A storage system includes one or more storage units, and a calculator. Each of the one or more storage units has plural physical storage devices, and a processor. The calculator has a controller that processes data inputted to and outputted from the storage unit by the processor. The storage system subjects the data to redundancy and stores the redundant data, and when a failure in which the data related to a read request cannot be read from one of the physical storage devices has occurred, reads the data from the readable physical storage device, recovers the data related to the read request, and transmits the recovered data to a request source of the read request. A process for recovering the data related to the read request from the read data can be selectively executed by the controller of the calculator and the processor of the storage unit.