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, 2013
Filed:
Mar. 10, 2011
Yuji Kaneko, Tokyo, JP;
Yuji Kaneko, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
The invention proposes a disk array device that can improve response performance while maintaining data consistency even in the case a write request is received from a host device by a controller that does not have master authority. The disk array device includes a master controller and a slave controller. Upon adding identifying information indicating that write data has been stored in a buffer memory to the write request, the slave controller transmits, to the master controller, the write request to which the identifying information has been added as well as the write data. After having stored the write data, the master controller transmits the write request to which the identifying information has been added to the slave controller. Upon receiving the write request, the slave controller alters the attributes of the buffer memory where the write data has been stored, from the buffer memory to the cache memory.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile