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:
Oct. 12, 1993
Filed:
Feb. 15, 1991
Tomohisa Oyama, Sagamihara, JP;
Yumiko Ohizumi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An array disk apparatus capable of identifying locations where data reconstruction has failed. The apparatus comprises a disk controller containing a data reconstructing unit, a 'reconstruction unsuccessful' information generating unit and a 'reconstruction unsuccessful' information storing unit. The data reconstructing unit reconstructs lost data based on the data from the magnetic disk units other than the failed and repaired unit and on parity data associated with the data. The 'reconstruction unsuccessful' information generating unit generates 'reconstruction unsuccessful' information if another magnetic disk unit develops a read error during a data reconstruction process. The 'reconstruction unsuccessful' data storing unit stores the 'reconstruction unsuccessful' information to the failed magnetic disk unit after the repair thereof.