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. 15, 2019
Filed:
Jul. 28, 2017
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Geng Han, Beijing, CN;
Shaoqin Gong, Beijing, CN;
Ilya Usvyatsky, Northborough, MA (US);
Jian Gao, Beijing, CN;
Xinlei Xu, Beijing, CN;
Lifeng Yang, Beijing, CN;
Yousheng Liu, Beijing, CN;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Technology for synchronizing event handling between a primary storage processor and a secondary storage processor in an active/active data storage system. A single working task descriptor is selected at a time for uninterruptible execution, from a task scheduling queue that is maintained only on the primary storage processor. A copy of the working task descriptor is transmitted to the secondary storage processor. The working task descriptor is executed on both the primary storage processor and the secondary storage processor and without interruption by execution of any other task descriptor. Execution of the working task descriptor includes simultaneously transitioning through individual task states on both the primary storage processor and the secondary storage processor, and simultaneously executing functions on both the primary storage processor and the secondary storage processor during associated task states.