Norton Rose Fulbright US LLP
Data storage, reading, and cleansing method and device, and cloud storage system
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 (S401); determining whether the first number meets a preset data cleaning condition (S402); 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 (S403). 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.
HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
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Guangkai Weichun Wei Shiliang Qiqian
Ding Wang Wang Pu Lin