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. 19, 2017

Filed:

Sep. 19, 2014
Applicant:

Emc Ip Holding Company Llc, Hopkinton, MA (US);

Inventors:

Peng Wu, Westborough, MA (US);

Rong Yu, Franklin, MA (US);

Dan Aharoni, Brookline, MA (US);

Alexandr Veprinsky, Brookline, MA (US);

Amnon Naamad, Brookline, MA (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/0804 (2016.01); G06F 12/0846 (2016.01); G06F 12/126 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0804 (2013.01); G06F 12/0848 (2013.01); G06F 12/126 (2013.01); G06F 2212/282 (2013.01);
Abstract

Described are techniques for destaging data. Write data for write operations are stored in cache page(s). The cache may be partitioned into cache pages and write data stored thereon may be marked as write pending denoting that write data needs to be written out to physical storage. Weight values may be determined for the cache pages in accordance with factors. A first cache page may be selected having a highest such weight value where the selected first cache page includes at least some write data marked as write pending. The write data of the selected first cache page may be destaged to physical storage.


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