A method for backing up a comparison table of a solid-state hard disk

A technology of solid-state hard disk and comparison table, which is applied to the generation of response errors, error detection of redundant data in calculations, and instruments, etc. It can solve the problems of low performance, deviation of user data access performance, and inability to maintain use or data access performance level and other issues

Pending Publication Date: 2019-03-12
SUZHOU VICTOR INFORMATION TEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the aforementioned prior art, the data in the backed-up logical-physical comparison table is written simultaneously with the user data access, and the user data access performance curve P is

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  • A method for backing up a comparison table of a solid-state hard disk
  • A method for backing up a comparison table of a solid-state hard disk
  • A method for backing up a comparison table of a solid-state hard disk

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Embodiment Construction

[0017] In order to achieve the above object, the present invention adopts the technical means and its effects, and now presents preferred embodiments, which are described as follows in conjunction with the accompanying drawings.

[0018] Please also see Figure 1 to Figure 3 , figure 1 is a functional block diagram of the electronic device storage system of the present invention, figure 2 It is a schematic diagram of the solid-state hard disk backup comparison table in this invention, image 3 It is a graph of the access performance of user data in the present invention. figure 1 In the electronic device storage system 10 of the present invention, a central processing unit (CPU) 12 and a dynamic random access memory (DRAM) 13 are arranged on the host computer 11, and the logical address of the user data is accessed by the central processing unit 12 in cooperation with the dynamic random access memory 13 The command is sent to the solid state hard disk (SSD) 15 connected to...

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Abstract

A method for backup comparison table of solid state hard disk includes carry out dynamic maintenance on logical physical comparison table in volatile buffer memory of solid state hard disk; Dividing alogical physical comparison table backup into a plurality of unit backup data of a preset data amount; Backing up data in units separated by a preset interval delay time; At that same time, the flashmemory array for access user data and write unit backup data to the solid state disk is processed. However, only user data can be accessed during the delay time interval to improve the access efficiency of user data.

Description

technical field [0001] The invention relates to a method for backing up a comparison table of a solid-state hard disk, in particular to a backup method for the solid-state hard disk to write a logical-physical comparison table temporarily stored in a buffer memory into a flash memory. Background technique [0002] Solid State Drive (SSD for short) is integrated by NAND Flash Memory Array (NAND Flash Memory Array) into a single storage device. Because the flash memory has a limit on the number of erasures, the data needs to be stored scattered in the flash memory array of the solid-state hard disk, and the logical to physical mapping table (LogicaltoPhysicalMappingTable) is used to manage the comparison between the logical address of the data and the physical address actually stored in the flash memory relationship, in order to facilitate access to data in the solid-state drive. [0003] When starting the solid-state hard disk in the prior art, in order to manage the relatio...

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Application Information

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IPC IPC(8): G06F11/14
CPCG06F11/1446
Inventor 不公告发明人
Owner SUZHOU VICTOR INFORMATION TEC CO LTD
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