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1. (WO2018076954) DATA STORAGE METHOD, APPARATUS AND SYSTEM

Pub. No.:    WO/2018/076954    International Application No.:    PCT/CN2017/101847
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Sat Sep 16 01:59:59 CEST 2017
IPC: G06F 11/10
Applicants: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
杭州海康威视数字技术股份有限公司
Inventors: CHEN, Wei
陈伟
LIN, Qiqian
林起芊
WANG, Weichun
汪渭春
Title: DATA STORAGE METHOD, APPARATUS AND SYSTEM
Abstract:
A data storage method, apparatus and system, relating to the field of computer technology. The data storage method is applied to a main storage server in a data storage system, and the data storage system comprises a management server and a storage server. The method comprises: receiving a first data block to be stored to a first stripe (S301); sending a storage address acquisition request for the first data block to a management server, acquiring a first storage address determined by the management server according to a stripe storage mechanism, and storing the first data block to the first storage address (S302); determining whether the first data block is the last data block in the first stripe (S303); if yes, calculating a first parity block in the first stripe according to all data blocks that have been successfully stored in the first stripe (S304); and sending a storage address acquisition request for the first parity block to the management server, acquiring a second storage address determined by the management server according to the stripe storage mechanism, and storing the first parity block to the second storage address (S305). Applying said method may to the greatest extent avoid inconsistent data blocks and parity blocks.