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:
Jul. 24, 2018

Filed:

Jun. 13, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Michael T. Benhase, Tucson, AZ (US);

Andrew D. Walls, San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/20 (2006.01); G06F 11/10 (2006.01); G06F 3/06 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1092 (2013.01); G06F 3/061 (2013.01); G06F 3/0659 (2013.01); G06F 3/0688 (2013.01); G06F 11/2058 (2013.01); G06F 11/2066 (2013.01); G06F 11/2069 (2013.01); G06F 12/0253 (2013.01); G06F 11/2087 (2013.01); G06F 2212/7205 (2013.01);
Abstract

A mechanism is provided in a data processing system. The mechanism determines a maximum queue depth of a queue for each solid state drive in a plurality of solid state drives. A given data block is mirrored between a group of solid state drives within the plurality of solid state drives. The mechanism tracks outstanding input/output operations in a queue for each of the plurality of solid state drives. For a given read operation to read the given data block, the mechanism identifies a solid state drive within the group of solid state drives based on a number of empty slots in the queue of each solid state drive within the group of solid state drives.


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