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.

Patent No.:

US 10761737 B1

Date of Patent:

Sep. 01, 2020

Filed:

Aug. 31, 2018

Method and apparatus for caching data in an solid state disk (ssd) of a hybrid drive that includes the ssd and a hard disk drive (hdd)

Applicant:

Marvell World Trade Ltd., St. Michael, BB;

Inventor:

Sehat Sutardja, Los Altos Hills, CA (US);

Assignee:

MARVELL ASIA PTE, LTD., Singapore, SG;

Attorney:

Primary Examiner:

Nathan Sadler

Int. Cl.

CPC ...

G06F 3/06 (2006.01); G06F 12/0866 (2016.01); G06F 12/0897 (2016.01); G11B 20/10 (2006.01); G11B 20/12 (2006.01); G11B 5/55 (2006.01); G11B 19/04 (2006.01); G11B 20/18 (2006.01); G11B 27/36 (2006.01); G11C 15/04 (2006.01);

U.S. Cl.

CPC ...

G06F 3/0611 (2013.01); G06F 3/0644 (2013.01); G06F 3/0656 (2013.01); G06F 3/0676 (2013.01); G06F 12/0866 (2013.01); G06F 12/0897 (2013.01); G11B 5/5526 (2013.01); G11B 19/041 (2013.01); G11B 19/047 (2013.01); G11B 20/10527 (2013.01); G11B 20/1217 (2013.01); G11B 20/1252 (2013.01); G11B 20/1879 (2013.01); G11B 27/36 (2013.01); G06F 2212/1016 (2013.01); G06F 2212/1024 (2013.01); G06F 2212/202 (2013.01); G06F 2212/21 (2013.01); G06F 2212/217 (2013.01); G06F 2212/224 (2013.01); G06F 2212/225 (2013.01); G06F 2212/281 (2013.01); G06F 2212/282 (2013.01); G06F 2212/313 (2013.01); G06F 2212/462 (2013.01); G06F 2212/70 (2013.01); G11B 2020/10657 (2013.01); G11B 2020/1238 (2013.01); G11B 2020/1242 (2013.01); G11B 2020/1292 (2013.01); G11B 2020/183 (2013.01); G11C 15/043 (2013.01);

Abstract

A system includes a read/write module and a caching module. The read/write module is configured to access a first portion of a recording surface of a rotating storage device. Data is stored on the first portion of the recording surface of the rotating storage device at a first density. The caching module is configured to cache data on a second portion of the recording surface of the rotating storage device at a second density. The second portion of the recording surface of the rotating storage device is separate from the first portion of the recording surface of the rotating storage device. The second density is less than the first density.

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