Data storage method and storage device

Abstract

The embodiment of the present application discloses a data storage method and a storage device, which are used to delete part of the target data in the storage hard disk that has not completed the temporary storage of the target data and the storage hard disk that has completed the temporary storage of the target data when the power supply of the storage device is interrupted The target data in the storage device, thus ensuring the consistency of the data in the storage device. The method in the embodiment of the present application includes: the storage device acquires real-time data, the storage device is equipped with at least two storage hard disks and at least one controller, and the storage hard disk is pre-configured as a logical disk of a software disk array RAID; the storage device stores Temporarily store the target data in the real-time data in each storage hard disk in the order of priority; when the power supply of the storage device is interrupted, the storage device judges whether there is at least one first storage hard disk that has not completed the temporary storage of the target data; if so, then The storage device deletes the target data in the second storage hard disk and part of the target data temporarily stored in the first storage hard disk.

Description

technical field [0001] The present application relates to the technical field of data storage, in particular to a data storage party and a storage device. Background technique [0002] In recent years, users have more and more demands for storing data in storage devices, which requires not only a large capacity of the storage devices, but also high performance of the storage devices. [0003] However, compared with other industries (such as the banking industry), the current method of video surveillance industry using storage devices to store data has relatively loose requirements for data storage reliability. After the data, the real-time data is temporarily stored in each storage hard disk according to the data storage sequence preset by redundant array of independent disks (RAID), and the storage success indication information is marked on each storage hard disk. [0004] However, the problem with this method of storing data is that when an abnormal power failure occurs,...

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Problems solved by technology

[0004] However, the problem with this method of storing data is that when an abnormal power failure occurs, part of the target data in the real-time data that has not been stored in each storage hard disk will be lost, causing the user to read the target data. What is read is not real data, but missing data, so this method of storing data cannot guarantee the consistency and accuracy of the read data

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