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:
Jun. 21, 2022
Filed:
Aug. 26, 2020
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Lei Chen, Beijing, CN;
Keji Huang, Chengdu, CN;
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/14 (2006.01); G06F 3/06 (2006.01); G06F 9/52 (2006.01);
U.S. Cl.
CPC ...
G06F 12/1466 (2013.01); G06F 3/065 (2013.01); G06F 3/067 (2013.01); G06F 3/0611 (2013.01); G06F 3/0614 (2013.01); G06F 3/0622 (2013.01); G06F 3/0637 (2013.01); G06F 3/0659 (2013.01); G06F 9/526 (2013.01);
Abstract
In an active-active system, if write lock permission is granted to a second storage array, a first storage array sends to-be-written data and a lock revocation request together to a lock server; the lock server sends a lock revocation request carrying the to-be-written data to the second storage array; after storing the to-be-written data, the second storage array sends a lock revocation success message to the lock server; the lock server gives the write lock permission to the first storage array; and the first storage array obtains the write lock permission and stores the to-be-written data.