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.:

US 9274713 B1

Date of Patent:

Mar. 01, 2016

Filed:

May. 08, 2014

Device driver, method and computer-readable medium for dynamically configuring a storage controller based on raid type, data alignment with a characteristic of storage elements and queue depth in a cache

Applicant:

Lsi Corporation, San Jose, CA (US);

Inventors:

Horia Simionescu, Foster City, CA (US);

Siddhartha Kumar Panda, Bangalore, IN;

Kunal Sablok, Banagalore, IN;

Kapil Sundrani, Bangalore, IN;

Assignee:

Avago Technologies General IP (Singapore) Pte. Ltd., Singapore, SG;

Attorney:

Primary Examiner:

Hong Kim

Int. Cl.

CPC ...

G06F 13/00 (2006.01); G06F 3/06 (2006.01); G06F 11/20 (2006.01); G06F 12/08 (2006.01);

U.S. Cl.

CPC ...

G06F 3/0619 (2013.01); G06F 3/0647 (2013.01); G06F 3/0685 (2013.01); G06F 3/0689 (2013.01); G06F 11/2089 (2013.01); G06F 12/0815 (2013.01); G06F 12/0866 (2013.01);

Abstract

A storage controller coupled to a host computer is dynamically configured by a device driver executing in the host computer. The storage controller manages a logical volume for the host using a set of flash-based storage devices arranged as a redundant array of inexpensive disks (RAID). The device driver identifies a RAID type for the logical volume and a queue depth from a stream of I/O commands. For a logical volume in RAID 0, the device driver compares the queue depth to a threshold value and configures the storage controller to process the stream of I/O commands with a first path or an alternative path based on a result of the comparison. For a logical volume in RAID 5, the device driver performs a similar comparison and uses the result to direct the storage controller to use a write back or a write through mode of operation.

Find Patent Forward Citations

Simionescu, Horia. (2016). Device driver, method and computer-readable medium for dynamically configuring a storage controller based on raid type, data alignment with a characteristic of storage elements and queue depth in a cache (U.S. Patent No. 9274713). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9274713

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