Data storage method and device

A technology of data storage and storage area, applied in the direction of electrical digital data processing, data processing input/output process, instruments, etc., can solve the problem of data write amplification, etc., to prolong the service life and avoid the effect of repeated writing

Active Publication Date: 2021-07-27
锐掣(杭州)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a data storage method and device to solve the problem of data write amplification caused by partial data being repeatedly written into the physical address space of the solid-state hard disk

Method used

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Embodiment Construction

[0031] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0032] First, the nouns involved in this application are explained:

[0033] Logical address space: refers to the address space of memory cells, storage elements, and network hosts seen from the perspective of applications in computer architecture. The logical address of the logical address space is often different from the physical address (physical address), and the logical address ca...

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Abstract

The invention provides a data storage method and device, and relates to a data storage technology. The data storage method includes: writing the to-be-stored data into at least one unit storage area by taking the initial address of the next unit storage area adjacent to the unit storage area in which the data is written last time as an initial storage address; filling compressible data in the unit storage area in which the to-be-stored data is written and the residual storage space exists; and finally, taking data in each unit storage area in the at least one unit storage area as unit read-write data, writing each unit read-write data into a physical address space of the solid state disk from the logic address space, wherein each unit read-write data located in the physical address space is in a compressed state. Only the to-be-stored data is occupied in the physical address space of the solid state disk, and write amplification of the data is not caused, so that the erasing times of the solid state disk can reach the preset threshold value later, and the service life of the solid state disk is prolonged.

Description

technical field [0001] The present application relates to data storage technologies, and in particular to a data storage method and device. Background technique [0002] Solid State Drives (SSD), referred to as SSD or solid disk, is a hard disk made of solid-state electronic storage chip arrays, including control units and storage units (FLASH chips, DRAM chips), and is currently the mainstream for storage data storage device. When using the solid-state hard disk to store data, if the data volume of the data stored in the physical address space of the solid-state hard disk is greater than the preset data volume threshold, the stored data needs to be re-erased to clear outdated data in the stored data. For solid-state hard disks, the allowable number of erasing and writing is limited, and when the number of erasing and writing of the solid-state hard disk is greater than a preset threshold, the storage function of the solid-state hard disk will fail. [0003] At present, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0644G06F3/0614G06F3/0652G06F3/0679
Inventor 郑宁许树堃金戈罗小波
Owner 锐掣(杭州)科技有限公司
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