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:
Mar. 05, 2019

Filed:

Dec. 31, 2015
Applicant:

Emc Corporation, Hopkinton, MA (US);

Inventors:

Walter A. O'Brien, III, Westborough, MA (US);

Robert W. Beauchamp, Berlin, MA (US);

Assignee:

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

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/02 (2006.01); G06F 12/10 (2016.01);
U.S. Cl.
CPC ...
G06F 3/0605 (2013.01); G06F 3/061 (2013.01); G06F 3/0616 (2013.01); G06F 3/0631 (2013.01); G06F 3/0644 (2013.01); G06F 3/0659 (2013.01); G06F 3/0665 (2013.01); G06F 3/0679 (2013.01); G06F 12/0246 (2013.01); G06F 12/10 (2013.01); G06F 2212/1016 (2013.01); G06F 2212/1036 (2013.01); G06F 2212/214 (2013.01); G06F 2212/651 (2013.01); G06F 2212/652 (2013.01); G06F 2212/657 (2013.01); G06F 2212/7201 (2013.01); G06F 2212/7202 (2013.01); G06F 2212/7204 (2013.01); G06F 2212/7211 (2013.01);
Abstract

There is disclosed a technique for use in managing multi-granularity flash translation layers in solid state drives. An SSD comprising a flash translation layer (FTL) table and flash memory space is provided. The FTL table is reconfigured into a plurality of multiple sub-tables, where a first sub-table has a first logical page size and a second sub-table has a second logical page size, the first logical page size being smaller than the second logical page size. The flash memory space is reconfigured into multiple flash memory sub-spaces. The first sub-table is mapped to the first flash memory sub-space the second sub-table is mapped to the second flash memory sub-space.


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