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:
Aug. 23, 2005
Filed:
May. 29, 2002
Paul Soulier, Colorado Springs, CO (US);
Brad Besmer, Colorado Springs, CO (US);
Paul Soulier, Colorado Springs, CO (US);
Brad Besmer, Colorado Springs, CO (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
Methods and associated structure for mapping of data stripes and stripes in a RAID levelE storage subsystem such that associated stripes of multiple physical stripes are physically contiguous. This mapping eliminates the need for duplicative reading (or writing) of stripes unrelated to the underlying I/O request performed to reduce the total number of I/O requests. This mapping also serves to limit the number of I/O requests required to read multiple stripes to the number of disk drives in the array and the number required to write multiple stripes and their corresponding mirrors to twice the number of disk drives in the array. The effects of this mapping therefore simplify RAID levelE management in RAID controller with constrained memory and processing resources.