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:
Jan. 28, 2014
Filed:
Aug. 05, 2011
Paresh Chatterjee, Fremont, CA (US);
Ajit Narayanan, Fremont, CA (US);
Narayanan Balakrishnan, Milpitas, CA (US);
Vijayarankan Muthirisavenugopal, Chennai, IN;
Paresh Chatterjee, Fremont, CA (US);
Ajit Narayanan, Fremont, CA (US);
Narayanan Balakrishnan, Milpitas, CA (US);
Vijayarankan Muthirisavenugopal, Chennai, IN;
American Megatrends, Inc., Norcross, GA (US);
Abstract
A system, method, apparatus, and computer-readable medium are described for providing redundancy in a storage system. According to one method, maps are generated and stored that define stripe patterns for storing data on the storage nodes of a storage cluster. The maps are defined such that when a new storage node is added to the cluster, no movement of data occurs between two storage nodes that existed in the cluster prior to the addition of the new storage node during re-striping, and such that the data stored on each storage node is mirrored on another storage node. Storage nodes may also be designated as an owner or a peer for each storage zone. Input/output operations received at an owner node are fielded directly and mirrored to the peer node, while input/output operations received at a peer node are redirected to the owner node for processing.