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Data storage method and storage device

A data storage device and data storage technology, applied in the direction of electrical digital data processing, input/output process of data processing, generation of response errors, etc., can solve the problems that data cannot be restored, real-time video data cannot be restored, etc., to achieve The effect of ensuring safety

Active Publication Date: 2020-03-10
HANGZHOU HIKVISION SYST TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the cloud storage server, for the N+M storage nodes that store the data sent by the front-end equipment, when M storage nodes fail (that is, when M data fails), due to real-time video data, alarm video Both data and smart streaming data adopt the same security level, which will not only make it impossible to restore real-time video data, but also make it impossible to restore more important data including alarm video data and smart streaming data

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Embodiment Construction

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] In a conventional cloud storage system, the video data sent by the front-end camera equipment is often only saved as a copy. If a machine failure occurs, it is easy to cause data loss. At present, the network RAID (Redundant Arrays of Independent Disks, disk array) in the cloud storage system can protect user data across nodes on the basis of saving user costs. The implementation of network RAID is mainly based on EC technology. But for some critical da...

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Abstract

The embodiment of the invention provides a data storage method and a data storage device. The method comprises the steps of determining a data type of to-be-stored data; determining a security level of the to-be-stored data according to a preset corresponding relationship between different data types and different security levels; generating verification data conforming to the security level of the to-be-stored data according to the determined security level of the to-be-stored data; and storing the to-be-stored data and the verification data in N + m storage nodes respectively, wherein the number of N + m is consistent with the security level of the to-be-stored data. According to the data storage method and the data storage device provided by the embodiment of the invention, the securityof important data can be further ensured.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a data storage method and a storage device. Background technique [0002] Video cloud storage technology is a technology used for data cloud storage. The cloud storage server can receive data from front-end camera equipment and store the data. When the current cloud storage server stores data, it usually only saves one copy. In order to avoid data loss due to storage node failure, EC (erasure code, erasure code) technology is often used to store data. [0003] EC technology is a data encoding technology, which can add N copies of original data to M copies of data, and can restore the original data through any N copies of data in N+M copies, that is, if any If the data fails, the original data can still be restored through the remaining N copies of data. When the cloud storage server uses EC technology to store data, specifically, after receiving the data from the front-end...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F11/10
CPCG06F3/0623G06F3/0638G06F3/067G06F3/0689G06F11/1076G06F11/10G06F3/06
Inventor 夏伟强汪渭春林起芊王伟
Owner HANGZHOU HIKVISION SYST TECH