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NTFS file formatting parameter analysis method, terminal equipment and storage medium

A parameter analysis and file technology, applied in the field of files, can solve the problems of inaccurate recovery effect, wrong file data or file index positioning, and easy re-allocation of partition space, so as to improve the recovery accuracy.

Pending Publication Date: 2022-04-05
XIAMEN MEIYA PICO INFORMATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the formatting parameters are easy to be modified and the partition space is easy to be reallocated
Therefore, in some cases, the current recovery technology cannot better guarantee the accuracy of the recovery results.
Traditionally, formatted parameters are used as NTFS file system formatting and recovery parameters. In the case of formatting parameters being modified, partition space reallocation, and partition interleaving, etc., it will cause errors in the restored file data or file index positioning, thus making the recovery effect inaccurate.

Method used

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  • NTFS file formatting parameter analysis method, terminal equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The embodiment of the present invention provides a kind of NTFS file formatting parameter analysis method, such as figure 1 As shown, the method includes the following steps:

[0038] S1: Search for MFT file records in the formatted partition sector by sector, analyze the found MFT file records, and add the analysis results to the first set F.

[0039] When searching for the MFT file record in this embodiment, the method for judging whether the data block found belongs to the MFT file record block is:

[0040] Analyze the data block DataBuff according to the structure of the NTFS file record to obtain the MFT identifier MFTMagic, the file record time length FileRecordRealLenth, and the file record allocation length FileRecordAllocLenth; when the following three conditions are met at the same time, it is judged that the data block DataBuff belongs to the MFT file record block ;

[0041] Condition 1: DataBuff[30] is equal to DataBuff[1022], and DataBuff[31] is equal to ...

Embodiment 2

[0067] The present invention also provides an NTFS file formatting parameter analysis terminal device, including a memory, a processor, and a computer program stored in the memory and operable on the processor, when the processor executes the computer program The steps in the above method embodiment of Embodiment 1 of the present invention are realized.

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Abstract

The invention relates to an NTFS file formatting parameter analysis method, terminal equipment and a storage medium. According to the method, comprehensive hypothesis verification analysis is carried out on formatted MFT records, the cluster size is determined based on the total cluster number and the physical occupation size in the MFT records, and a partition initial sector is determined based on file multi-level indexes in combination with hypothesis verification analysis. According to the method and the device, the formatting parameters required by NTFS data recovery can be accurately obtained, a good technical support can be provided for subsequent NTFS data recovery, and the recovery accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of files, in particular to an NTFS file formatting parameter analysis method, terminal equipment and storage media. Background technique [0002] After the NTFS file system is formatted, the current data recovery technology mainly relies on the parameters of the formatted partition for corresponding data recovery. Because, formatting parameters are easy to be modified and partition space is also easy to be reallocated. Therefore, the current recovery technology cannot better guarantee the accuracy of the recovery results in some cases. Traditionally, formatted parameters are used as NTFS file system formatting and recovery parameters. In the case of formatting parameters being modified, partition space reallocation, and partition interleaving, etc., it will cause errors in the restored file data or file index positioning, thus making the recovery effect inaccurate. . Contents of the invention [0003] I...

Claims

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Application Information

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IPC IPC(8): G06F16/16G06F16/17G06F16/13
Inventor 杜新胜沈长达黄志炜
Owner XIAMEN MEIYA PICO INFORMATION
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