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.:
Date of Patent:
Oct. 04, 2022
Filed:
Oct. 04, 2019
Applicant:
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Inventors:
Changyu Feng, Beijing, CN;
Yousheng Liu, Beijing, CN;
Haiying Tang, Beijing, CN;
Xiaobo Zhang, Beijing, CN;
Sihang Xia, Beijing, CN;
Assignee:
EMC IP Holding Company LLC, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0613 (2013.01); G06F 3/064 (2013.01); G06F 3/0617 (2013.01); G06F 3/0647 (2013.01); G06F 3/0653 (2013.01); G06F 3/0659 (2013.01); G06F 3/0689 (2013.01);
Abstract
Data access techniques involve: determining whether there is a copy operation that is being performed from a first LU to a second LU in response to receiving a write operation request for a first data block in the first logic unit (LU); detecting a copy status of data in the first data block in response to determining that there is the copy operation that is being performed; and determining a processing strategy of the write operation request during execution of the copy operation based on the copy status.