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:
Jun. 28, 2022
Filed:
Mar. 03, 2020
Hitachi, Ltd., Tokyo, JP;
Sachie Tajima, Tokyo, JP;
Shintaro Ito, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
To appropriately access data managed before a supply of power is stopped. A storage device that receives an I/O request from a host computer and performs an I/O processing in response to the I/O request includes a CPU, a nonvolatile medium, and a memory having access performance higher than that of the nonvolatile medium. The CPU stores control information about a control for performing the I/O processing in the memory and the nonvolatile medium. The control information stored in the nonvolatile medium includes address conversion information for converting a physical address of a drive in which target data of the I/O request is stored and a logical address that indicates a logical area of data stored in the physical address.