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:
Nov. 03, 2015

Filed:

Dec. 05, 2013
Applicant:

Emc Corporation, Hopkinton, MA (US);

Inventors:

Wengang Wang, Beijing, CN;

Yingchao Zhou, Beijing, CN;

William K. McGrath, Wake Forest, NC (US);

Jun Guo, Beijing, CN;

Jia Zhai, Beijing, CN;

Assignee:

EMC Corporation, Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01); G06F 3/06 (2006.01); G06F 12/10 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0631 (2013.01); G06F 3/0619 (2013.01); G06F 3/0679 (2013.01); G06F 12/109 (2013.01);
Abstract

A technique performs a host write operation on behalf of a host computer. The technique involves receiving a write request from the host computer, and providing a data write command and a zero write command to backend storage in response to the write request from the host computer. The backend storage maintains a file on behalf of the host computer. Additionally, the data write command includes host data to be written to the file. Furthermore, the zero write command defines a field of zeroes to be written to the file. The technique further involves sending an acknowledgement to the host computer, the acknowledgement serving as a response to the write request from the host computer.


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