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1. (WO2018076633) REMOTE DATA REPLICATION METHOD, STORAGE DEVICE AND STORAGE SYSTEM

Pub. No.:    WO/2018/076633    International Application No.:    PCT/CN2017/081341
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Sat Apr 22 01:59:59 CEST 2017
IPC: G06F 11/14
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: KONG, Xiaolong
孔晓龙
Title: REMOTE DATA REPLICATION METHOD, STORAGE DEVICE AND STORAGE SYSTEM
Abstract:
A remote data replication method, a storage device and a storage system. A first controller detects whether there is a replication task at the locality; when there is no replication task in the first controller, the first controller sends a request message to the second controller; the request message is used for applying to the second controller for an application task, and the second controller comprises at least two replication tasks; the second controller reads data corresponding to a first replication task according to the request message and sends same to the first controller; and the first controller receives the data corresponding to the first replication task and sends the data corresponding to the first replication task to a disaster backup array, and the second controller sends the data corresponding to the second replication task to the disaster backup array. Accordingly, the purpose of parallel data replication in a multi-variable control system is achieved.