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. 26, 2016
Filed:
Sep. 21, 2012
Applicant:
Lsi Corporation, Milpitas, CA (US);
Inventors:
Sumanesh Samanta, Bangalore, IN;
Sujan Biswas, Bangalore, IN;
Horia Simionescu, Foster City, CA (US);
Assignee:
Avago Technologies General IP (Singapore) Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/14 (2006.01); G06F 13/14 (2006.01);
U.S. Cl.
CPC ...
G06F 13/14 (2013.01);
Abstract
A method and system for IO processing in a storage system is disclosed. In accordance with the present disclosure, a controller may take long term 'lease' of a portion (e.g., an LBA range) of a virtual disk of a RAID system and then utilize local locks for IOs directed to the leased portion. The method and system in accordance with the present disclosure eliminates inter-controller communication for the majority of IOs and improves the overall performance for a High Availability Active-Active DAS RAID system.