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. 05, 2009
Filed:
Oct. 19, 2005
Senthil M. Thangaraj, Fremont, CA (US);
Paresh Chatterjee, Fremont, CA (US);
Basavaraj G. Hallyal, Fremont, CA (US);
Senthil M. Thangaraj, Fremont, CA (US);
Paresh Chatterjee, Fremont, CA (US);
Basavaraj G. Hallyal, Fremont, CA (US);
LSI Corporation, Milpitas, CA (US);
Abstract
Methods and systems for improved lock processing in a storage controller. Storage controllers that provide storage management features such as RAID storage controllers may concurrently process I/O requests received from attached host systems and I/O requests generated internally by the management processing in the controller. Such concurrent processing is coordinated by lock processing that allows affected storage areas to be locked during processing of an I/O operation. Features and aspects hereof allow such lock processing to lock regions flexibly defined by the controller. The flexible definition of the regions to be locked allows variance in the granularity of the locks required. Smaller granularity permits more concurrent I/O requests to be processed.