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. 19, 2013
Filed:
Dec. 30, 2008
Hariharan Kamalavannan, Chennai, IN;
Suresh Dhanarajan, Krishnagiri, IN;
Senthil Kannan, Rediarpalayam, IN;
Satish Subramanian, Chennai, IN;
Selvaraj Rasappan, Coimbatore, IN;
Hariharan Kamalavannan, Chennai, IN;
Suresh Dhanarajan, Krishnagiri, IN;
Senthil Kannan, Rediarpalayam, IN;
Satish Subramanian, Chennai, IN;
Selvaraj Rasappan, Coimbatore, IN;
LSI Corporation, San Jose, CA (US);
Abstract
A method for storing data and two sets of distributed mirrored data disposed as data stripes which permits data recovery without the necessity of parity calculations, is described. Redundant data are stored in groups of five physical hard drives which are logically segmented into stripe groups, each stripe group having three data stripe sets wherein one data stripe is protected by two distributed mirror stripes in accordance with an algorithm. The present method provides protection for all one- and two-disk failures and certain three-disk drive failures, for each physical five disk group, and retains a usable disk capacity of 33%.