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Data deletion method, device and computer-readable storage medium of storage device

A storage device and deletion method technology, which is applied in computing, digital data processing, data processing input/output process, etc., can solve the problem of increasing the burden of the garbage collection process of the storage device, and achieve the effect of solving the increased burden

Active Publication Date: 2021-12-10
YEESTOR MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a data deletion method and device for a storage device and a computer-readable storage medium, aiming to solve the problem of increasing the burden of the garbage collection process of the storage device

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  • Data deletion method, device and computer-readable storage medium of storage device
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  • Data deletion method, device and computer-readable storage medium of storage device

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Embodiment Construction

[0038] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0039] The main solution of the embodiment of the present invention is: when receiving a data deletion instruction, obtain the file configuration table corresponding to the data deletion instruction; obtain the cluster number corresponding to the data deletion instruction in the file configuration table, and obtain The absolute logical block address of the cluster number; obtaining a preset data information table, and setting the validity of data associated with the absolute logical block address to invalid in the data information table.

[0040] Since the existing USB storage device deletes files on the host side, in fact, the host just sets the cluster where the file data corresponding to the delete operation in the FAT table is located to 0, and the file data corresponding to the delete operation is still stored in ...

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Abstract

The invention discloses a data deletion method and device of a storage device and a computer-readable storage medium, comprising the following steps: when receiving a data deletion instruction, obtaining a file configuration table corresponding to the data deletion instruction; obtaining the file configuration The cluster number corresponding to the data deletion instruction in the table, and obtain the absolute logical block address of the cluster number; obtain the preset data information table, and associate the absolute logical block address with the absolute logical block in the data information table The data validity associated with the address is set to invalid. Because the present invention can obtain the cluster number whose cluster value is zero in the file configuration table, and obtain the logical block address corresponding to the cluster number, and then set the data of the logical block address to invalid in the GC garbage collection algorithm table, After the data is marked as invalid data, the recycling algorithm will not reclaim the space for storing the data, thereby solving the problem of increased burden on the garbage collection process of the storage device.

Description

technical field [0001] The invention relates to the field of USB storage devices, in particular to a data deletion method, device and computer-readable storage medium of the storage device. Background technique [0002] With the rapid development of computer hardware, removable storage devices are widely loved by consumers due to factors such as small size, easy to carry, large storage capacity, cheap price, and reliable performance. [0003] However, existing USB storage devices cannot perform data identification on the FAT file system. During the entire lifecycle of the storage device, invalid data cannot be identified and invalidated at the algorithm layer of the storage device. Therefore, although the existing USB storage device performs the operation of deleting files on the host side, in fact, the host only sets the cluster where the file data corresponding to the deletion operation in the FAT table is located to 0, and the file data corresponding to the deletion oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/0644G06F3/0652
Inventor 黄今吴大畏李晓强
Owner YEESTOR MICROELECTRONICS CO LTD