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Method for quickly backing up NTFS file system

A file system and backup technology, which is applied in the direction of responding to errors, error detection of redundant data in calculations, instruments, etc., can solve the problems of slow backup speed and unsuitable backup methods for data backup, etc. The effect of saving storage space

Active Publication Date: 2021-02-19
成都傲梅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for quickly backing up the NTFS file system to solve the problem that the backup speed of the traditional backup method will become slower and slower in the face of increasingly large data backup, and the traditional backup method is no longer suitable for the current data. backup problem

Method used

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  • Method for quickly backing up NTFS file system
  • Method for quickly backing up NTFS file system
  • Method for quickly backing up NTFS file system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a method for quickly backing up an NTFS file system includes the following steps:

[0032] Step S1. Create a snapshot or lock the volume for the volume to be backed up;

[0033] Step S2. Obtain the bitmap data of the file system;

[0034] Step S3. Exhausting files that do not need to be backed up from the bitmap data;

[0035] Step S4. Calculate how many clusters each block occupies;

[0036] Step S5. Determine whether the total number of clusters is within the limited maximum number of clusters, that is, whether the total number of clusters is greater than the preset value. If the total number of clusters is greater than the preset value, the number of clusters in each block is multiplied by 2 until the total number of clusters The number is less than or equal to the preset value; if the total number of clusters is less than or equal to the preset value, backup is performed;

[0037] Step S6. Judging whether to complete the backup of all ...

Embodiment 2

[0052] This embodiment is a further specific application of the first embodiment.

[0053] First, create a snapshot for the NTFS file system that needs to be backed up. There are two ways to create a snapshot: 1. Use Windows Volume Shadow Copy Service to create a backup snapshot. 2. Use the filter driver to create a backup snapshot. The filter driver is a filter driver capable of extending snapshot functions.

[0054] The bitmap data of the NTFS file system is obtained from the snapshot, and the obtained bitmap data is divided into two parts. One is to construct the bitmap data of the NTFS file system according to the used clusters of the NTFS file system; the other is to find out the excluded files. Bitmap data, which is excluded from the constructed volume bitmap data, can construct the bitmap data of the cluster that needs to be backed up this time. Exclude files are files that do not need to be backed up.

[0055]Then calculate how many clusters each block needs to back...

Embodiment 3

[0085] A method for quickly backing up an NTFS file system, comprising the steps of:

[0086] Step S1. Create a snapshot or lock the volume for the volume to be backed up;

[0087] Step S2. Obtain the bitmap data of the file system;

[0088] Step S3. Exhausting files that do not need to be backed up from the bitmap data;

[0089] Step S4. Calculate how many clusters each block occupies;

[0090] Step S5. Determine whether the total number of clusters is within the limited maximum number of clusters, that is, whether the total number of clusters is greater than the preset value. If the total number of clusters is greater than the preset value, the number of clusters in each block is multiplied by 2 until the total number of clusters If the total number of clusters is less than or equal to the preset value, backup will be performed; the backup procedure is: write a database backup script according to the server, send the database backup script to the server, the server receive...

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Abstract

The invention provides a method for quickly backing up an NTFS file system. The method comprises the following steps: S1, creating snapshots or locking volumes for volumes needing to be backed up, S2,acquiring bitmap data of the file system, S3, discharging files which do not need to be backed up from the bitmap data, S4, calculating the number of clusters occupied by each block, S5, judging whether the total cluster number is within the limited maximum cluster number range or not, S6, judging whether backup of all blocks is completed or not, S7, if the backup of all the blocks is not completed, obtaining a sector to be backed up next time from the bitmap data, reading original data according to the bitmap data, and delivering the original data and the bitmap data to a consumer queue until the backup of all the blocks is completed, and S8, if the backup of all the blocks is completed, ending the backup. According to the data backup method and device, the problems that the backup speedof a traditional backup method becomes slower and slower and the traditional backup method is not suitable for the current data backup for the backup of the data which is increasingly huge at presentare solved.

Description

technical field [0001] The invention relates to the technical field of computer file backup, in particular to a method for quickly backing up an NTFS file system. Background technique [0002] With the rapid development of computer technology and the rapid increase of hard disk capacity, people's data storage requirements are also getting higher and higher. At the same time, more individuals or companies are more concerned about data security. At present, the traditional backup method is used to back up increasingly large data, and the backup speed of the traditional backup method is getting slower and slower, and the traditional backup method is no longer suitable for the current increasingly large data situation. Therefore, it is necessary to provide a method for quickly backing up the NTFS file system to overcome the above-mentioned problems. Contents of the invention [0003] The invention provides a method for quickly backing up the NTFS file system to solve the prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1448G06F11/1458
Inventor 先泽强
Owner 成都傲梅科技有限公司
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