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:
Jan. 02, 2018
Filed:
Nov. 25, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Hironori Saito, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A storage controller that performs control for storing in memory areas of a storage device, data that is grouped into redundant data in blocks each having a given data size. The storage controller includes a memory unit configured to store therein group information created by grouping performed such that logical addresses for a writing destination identified from a data writing request are correlated with the blocks; and a control unit configured to count in response to a data reading request, number of times of reading from a group including logical addresses for a reading destination identified from the reading request, based on the group information, and issues any one among a reading request that includes the logical addresses for the reading destination and a reading request that includes logical addresses for a memory destination of redundant data corresponding to data of the logical addresses for the reading destination.