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:
Dec. 30, 2025
Filed:
Sep. 11, 2024
Hitachi Vantara, Ltd., Yokohama, JP;
Norio Chujo, Tokyo, JP;
Masanori Takada, Tokyo, JP;
HITACHI VANTARA, LTD., Kanagawa, JP;
Abstract
A storage apparatus includes a first control device having a first memory, a second control device having a second memory, and a memory module having a third memory. The first memory and the second memory store drive control information including association between a logical address and a physical address, cache data in data I/O processing, and cache control information including association between a logical address of the cache data and a cache address of the cache data. The third memory stores the drive control information, dirty data of the cache data in the first memory, dirty data of the cache data in the second memory, and the cache control information. Even in a case where the control device or the memory module is blocked, the dirty data is set to be redundantly stored in each of different apparatuses.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile