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. 18, 2020

Filed:

Mar. 22, 2016
Applicant:

Seagate Technology Llc, Cupertino, CA (US);

Inventors:

Mark Ish, Sandy Springs, GA (US);

Anant Baderdinni, Lawrenceville, GA (US);

Balakrishnan Sundararaman, Austin, TX (US);

Shashank Nemawarkar, Austin, TX (US);

Assignee:

Seagate Technology LLC, Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/08 (2016.01); G06F 12/0866 (2016.01);
U.S. Cl.
CPC ...
G06F 3/0619 (2013.01); G06F 3/065 (2013.01); G06F 3/0613 (2013.01); G06F 3/0656 (2013.01); G06F 3/0659 (2013.01); G06F 3/0685 (2013.01); G06F 3/0688 (2013.01); G06F 12/0866 (2013.01); G06F 2212/1032 (2013.01); G06F 2212/214 (2013.01);
Abstract

Method and apparatus for managing data in a distributed data storage system. In some embodiments, a plurality of storage devices define an overall available memory space. A control circuit stores a first copy of user data from a selected distributed data set in a working set of memory buffers, stores a duplicate, second copy of the user data in an alias set of memory buffers, generates parity data based on the second copy of the user data in the alias set of the memory buffers, and flushes the user data and the parity data from the alias set of memory buffers to the storage devices while the first copy of the user data remains in the working set of the memory buffers. In this way, subsequently received access commands can be serviced using the working set of the memory buffers.


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