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Data processing method and device

A data processing and data technology, applied in electrical digital data processing, data processing input/output process, instruments, etc., can solve the problems of low flash disk efficiency, lack of affinity for HDD disks, etc., and achieve the effect of excellent writing performance

Pending Publication Date: 2022-01-28
NEW H3C BIG DATA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application provides a data processing method and device to solve the problem in the prior art that the brushing service is not compatible with HDD disks, resulting in low efficiency of disk brushing

Method used

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  • Data processing method and device

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Embodiment Construction

[0051] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0052] It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second ...

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Abstract

The invention relates to the technical field of data storage, in particular to a data processing method and device. The method is applied to a storage server, the storage server comprises a first storage medium composed of SSDs and a second storage medium composed of HDDs. The method comprises the steps that a target data writing request is received, and whether first data associated with target data exists in the first storage medium or not is judged; if the target data and the first data exist, merging the target data and the first data to obtain second data; judging whether the data length of the second data meets a preset requirement or not; if it is judged that the data length of the second data meets the preset requirement, the second data is added to a first disk brushing queue, and the first disk brushing queue is a disk brushing queue with the high priority; if it is judged that the data length of the second data does not meet the preset requirement, the second data is added to a second disk brushing queue, and the second disk brushing queue is a disk brushing queue with the low priority.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular to a data processing method and device. Background technique [0002] In the storage array, in order to improve the system performance of the storage system, SSDs are generally used to provide write cache for HDDs. However, since the capacity of SSDs is always smaller than that of HDDs, as data is continuously written, SSDs will eventually run out of space. . At this time, it is necessary to write the previously written dirty data (data that has been written to the SSD but not yet written to the HDD is called "dirty data", otherwise it is called "clean data") to the HDD. This process is called flashing. The clean data that has been flashed can be eliminated to free up space for new data. The flashing algorithm determines which data is selected to be written into the HDD. Generally, the data that has not been accessed recently is selected, so that the data blocks...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/0638G06F3/0671
Inventor 余思明
Owner NEW H3C BIG DATA TECH CO LTD
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