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:
May. 11, 2021
Filed:
Sep. 15, 2017
Hangzhou Hikvision Digital Technology Co., Ltd., Hangzhou, CN;
Shiliang Pu, Hangzhou, CN;
Guangkai Ding, Hangzhou, CN;
Weichun Wang, Hangzhou, CN;
Qiqian Lin, Hangzhou, CN;
Wei Wang, Hangzhou, CN;
HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD., Hangzhou, CN;
Abstract
Disclosed are data storage, data reading, and data cleaning methods and devices, and a cloud storage system. Storage blocks of storage nodes are grouped into resource pools. A method can include: for each resource pool, determining a first number of occupied storage blocks in the resource pool (S); determining whether the first number meets a preset data cleaning condition (S); if so, sending a data cleaning instruction to a storage node where each occupied second storage block in the resource pool is located, such that the storage node cleans the data stored on the second storage block in the storage node (S). That is to say, the management node determines the number of occupied storage blocks of a resource pool. When the number meets a preset data cleaning condition, the data in the storage block is cleaned. Such a process is simple, reducing the workload of management node.