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:
Apr. 30, 2013
Filed:
Jul. 21, 2010
Masaya Suenaga, Tokyo, JP;
Masaya Suenaga, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
The invention provides a disk array apparatus and a physical disk restoration method for managing a used area and an unused area of a faulty physical disk and shortening the time required for the physical disk to become usable by an external unit. The disk array apparatus includes: a unit for determining whether block areas of the physical disk are used areas or unused areas; a unit for recovering data in relation to block areas determined to be used areas and writing the recovered data to block areas of a spare disk corresponding to the used areas; a unit for transmitting a notification that the physical disk is usable to a host apparatus when data recovery is completed; and a unit for writing zero data to block areas of the spare disk corresponding to block areas determined to be unused areas after transmitting the notification.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile