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.

Date of Patent:
Feb. 23, 2016

Filed:

Jan. 14, 2014
Applicant:

Compellent Technologies, Eden Prairie, MN (US);

Inventors:

Michael J. Klemm, Minnetonka, MN (US);

Anthony J. Floeder, St. Anthony, MN (US);

Assignee:

Compellent Technologies, Eden Prairie, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); G06F 13/28 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0689 (2013.01); G06F 3/061 (2013.01); G06F 3/0616 (2013.01); G06F 3/0659 (2013.01); G06F 3/0688 (2013.01);
Abstract

A method for handling input/output (I/O) in a data storage system comprising a RAID subsystem storing data according to a RAID level utilizing a parity scheme, where RAID stripes have been configured across a plurality of data storage devices. The method may include monitoring write requests to the RAID subsystem, identifying write requests destined for the same RAID stripe, and bundling the identified write requests for substantially simultaneous execution at the corresponding RAID stripe. Monitoring write requests to the RAID subsystem may include delaying at least some of the write requests to the RAID subsystem so as to build-up a queue of write requests. In some embodiments, identifying write requests and bundling the identified write requests may include identifying and bundling a number of write requests as required to perform a full stripe write to the corresponding RAID stripe.


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