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:
Sep. 18, 2018

Filed:

Mar. 31, 2016
Applicant:

Emc Corporation, Hopkinton, MA (US);

Inventor:

Michael W. Shapiro, San Francisco, CA (US);

Assignee:

EMC IP Holding Company LLC, Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/02 (2006.01); G06F 11/07 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0616 (2013.01); G06F 3/0604 (2013.01); G06F 3/0647 (2013.01); G06F 3/0653 (2013.01); G06F 3/0679 (2013.01); G06F 11/076 (2013.01); G06F 11/079 (2013.01); G06F 11/0727 (2013.01); G06F 3/064 (2013.01); G06F 12/0253 (2013.01); G06F 2212/7211 (2013.01);
Abstract

A method for adaptively migrating data in solid state memory. The method includes making a first determination that a write limit of a first region of the solid state memory has been reached, and based on the first determination, allocating a second region of the solid state memory, writing a pre-migration marker to each memory location of the second region and receiving a first request to read a data fragment from a first logical address. The method further includes identifying a first memory location in the second region based on the first logical address, making a second determination that a first data fragment at the first memory location comprises a pre-migration marker, and based on the second determination, identifying a second memory location in the first region, based on the first logical address, and writing a second data fragment, retrieved from the second memory location, to the first memory location.


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