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:
May. 02, 1995
Filed:
Oct. 06, 1992
Hsieh T Hao, Los Altos, CA (US);
Spencer W Ng, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A data storage system architecture having an array of small data storage disks, organized into logical rows and columns, with each disk coupled to two disk controllers via two independent controller-disk interconnects. No two disks are coupled to the same pair of controllers. In this data storage system architecture, the component disks are arranged in parity groups of variable size. Within each parity group, failure of one disk sector can be recovered through data reconstruction using data from other disks in the parity group. One or more disks can be reserved as hot standbys for substitution on failure, automatically replacing any failing disk.