Mixed storage backup method and system based on HDD and SSD
A hybrid storage and backup technology, which is applied in the direction of responding to the generation of errors, error detection of redundant data in calculations, input/output to record carriers, etc., can solve the problems of increasing system costs and HDD reading and writing speeds that cannot meet the needs of users Demand, data loss and other issues, to achieve the effect of improving response speed and performance requirements, high-performance and reliable storage system backup, and enhancing sequence
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[0020] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict.
[0021] The present invention provides a hybrid storage backup method based on HDD and SSD, including the following steps:
[0022] The linear address space of a single or multiple HDDs is divided into several equal parts; wherein each of the equal parts includes a data segment and an idle segment;
[0023] If the write request arrives, the HDD writes the data into the corresponding data segment according to the preset strategy.
[0024] Wherein, if a write request arrives, the HDD writes data into the corresponding data segment according to the preset strategy: if a single HDD backs up a single SSD and the write request arrives, the HDD writes the data to the corresponding data Segment; wherei...
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