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:
Jun. 25, 2013
Filed:
Dec. 16, 2010
Madhukar Gunjan Chakhaiyar, Gaya, IN;
Mahmoud K Jibbe, Wichita, KS (US);
Dhishankar Sengupta, Yelachanahalli, IN;
Himanshu Dwivedi, Bangalore, IN;
Madhukar Gunjan Chakhaiyar, Gaya, IN;
Mahmoud K Jibbe, Wichita, KS (US);
Dhishankar Sengupta, Yelachanahalli, IN;
Himanshu Dwivedi, Bangalore, IN;
LSI Corporation, Milpitas, CA (US);
Abstract
A system and method of I/O path virtualization between a RAID controller and an environment service module (ESM) in a storage area network (SAN) is disclosed. In one embodiment, a type of I/O request is identified by an input/output (I/O) control engine upon receiving an I/O request from a host computer via a RAID controller. Further, a priority is assigned to the received I/O request based on the type of I/O request by the I/O control engine. Furthermore, the processing of the prioritized I/O request is interrupted by the I/O control engine. In addition, the prioritized I/O request is separated into a command I/O request or a status request. Also, the separated command I/O request or the status request is sent to an associated queue in a plurality of solid state drive (SSD) buffer queues (SBQ) in the I/O control engine.