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. 07, 2002
Filed:
Aug. 13, 1999
Methods and apparatus for raid hardware sequencing to achieve a higher performance raid architecture
Rodney A. DeKoning, Augusta, KS (US);
Dennis E. Gates, Wichita, KS (US);
Keith W. Holt, Wichita, KS (US);
John R. Kloeppner, Buhler, KS (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
The present invention provides storage system controllers and methods of controlling storage systems therewith. The controller ( ) includes a main processor ( ), a memory ( ), a device interface ( ) adapted to interface a peripheral component ( ), such as a RAID storage device, with the storage system controller, and an operations sequencer ( ). The main processor sequences a plurality of tasks to be executed to complete an operation. The operations sequencer coordinates an execution of the plurality of tasks. Methods of the invention include receiving a task status for each of the plurality of tasks that is executed, and issuing an interrupt to the main processor after all of the plurality of tasks of the operation are finished executing. In this manner, the operations sequencer offloads at least some of the main processor overhead to improve processor efficiency.