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:
Mar. 17, 2020
Filed:
Jun. 03, 2016
Nec Corporation, Tokyo, JP;
Shugo Ogawa, Tokyo, JP;
NEC CORPORATION, Minato-ku, Tokyo, JP;
Abstract
This invention improves the access performance of a storage medium and prolongs the life of the storage medium while preventing a situation in which a response to a write request is delayed to cause a write error. A storage control apparatus includes a rearrangement starter that starts data rearrangement processing in which fragmented data, which has been determined that data corresponding to a logical address area in a logical address space used by a host computer to access a storage medium are fragmented and stored in a plurality of physical address areas in a physical address space of the storage medium, is written in a continuous physical address area in the storage medium; and a rearrangement controller that evaluates, when receiving a write request from the host computer during the data rearrangement processing, whether the data rearrangement processing improves access performance to the storage medium, and instructs to continue the data rearrangement processing if the access performance is improved, but cancel or interrupt the data rearrangement processing if the access performance is not improved.