Data backup and restoration method and destination sever system for backup

A server system and data backup technology, applied in the computer field, can solve the problems of large system overhead, complex recovery process, increased system overhead, etc., and achieve the effect of high flexibility

Inactive Publication Date: 2013-10-09
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 The schematic diagram of the principle of full backup is shown. In the backup cycle, full backup is required for each backup. This kind of backup takes up a lot of system overhead, and it is difficult to shorten the backup interval to make the backup more accurate.
like figure 2 Shown is an existing incremental backup method. Each incremental backup only needs to back up the updated data, but the recovery process becomes more and more complicated due to the increase in the number of times. A single incremental backup Mistakes will make all data unusable, and the probability of this will increase with the number of backups
like image 3 The method of differential data backup shown in the figure actually solves the problem of data superposition on the basis of incremental backup. Increase a lot of system overhead and re-enter the contradictory cycle of full backup

Method used

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  • Data backup and restoration method and destination sever system for backup
  • Data backup and restoration method and destination sever system for backup
  • Data backup and restoration method and destination sever system for backup

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0037] Such as Figure 4-5 Shown, described data backup method comprises steps:

[0038] A. The source server confirms whether the backup is the first backup, and if it is the first backup, perform a full backup to the destination server; otherwise, perform an incremental backup on the basis of the previous backup;

[0039] B. After receiving the backup data, the destination server judges whether it is the first backup. If yes, the first backup is stored as slice backup data; otherwise, the incremental backup data and the last slice backup data are combined offline on the destination server to form a new The slice backup data and store it.

[0040] In this embodiment, only one full backup is performed, and then incremental backups are performed each time according to the time sequence, but the differential combination is not performed, but each incremental backup data is stored independently as a slice, and the full combination of slices is added to directly store the full da...

Embodiment 2

[0055] Such as Figure 6As shown, this embodiment provides a specific implementation system for data backup for the above-mentioned embodiments, including: a source server 100 and a destination server 200, wherein the source server of the source server 100 is generating incremental backup data or the first backup The full amount of data is encrypted and transmitted to the destination server 200, where the data is combined and stored.

[0056] Specifically, the destination server 200 includes: a receiving module 201 for receiving incremental backup data or rights backup data sent by the source server; a slice backup storage module 205 for storing the latest slice backup data; The incremental backup data and the last slice backup data are combined offline locally to form new slice backup data and stored in the slice grouping module 202 of the slice backup storage module 205 .

[0057] In order to ensure the security and integrity of data transmission, this embodiment is also eq...

Embodiment 3

[0061] Data backup is usually performed in a remote location to ensure security, and needs to be transmitted through an external network. At present, the amount of data is increasing, and the traditional transmission method has higher requirements for the network and the system.

[0062] Such as Figure 8 As shown, the present embodiment provides a data backup system for long-distance data transmission through internal and external networks. The system includes a source server system and a destination server system respectively, wherein the source server system includes: a source server 110; A transmission preparation module 114 connected to the local intranet, the transmission preparation module 114 is provided with a first storage device 113, a first synchronization device for synchronizing the data to be backed up and transmitted by the source server 110 to the first storage device 113 A device 115, and a transmission device 112 for transmitting data to the destination serv...

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PUM

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Abstract

The invention discloses a data backup and restoration method and destination server system for backup. The backup method comprises the following steps that (A) a source server side confirms whether backup is carried out for the first time or not, full amount backup is carried out to a destination server side if the backup is carried out for the first time, and otherwise, incremental backup is carried out on the basis of the backup of a previous time; (B) the destination server side judges whether the backup is carried out for the first time or not after receiving backup data, the full amount backup data of the first time backup are regarded as slice backup data and stored if the backup is carried out for the first time, and otherwise, new slice backup data are formed by combining incremental backup data and the slice backup data of a previous time on the destination server side in a local off-line mode. Compared with an existing backup mode, differential combination does not needed to be carried out on the backup, and burden of a system will not be increased even backup is carried out in a long time for multiple times. Further, a complex reverse searching and restoring process does not exist in a recovery process, and flexibility is higher.

Description

technical field [0001] The present invention relates to the field of computer technology, more specifically, to a data backup and recovery method and a backup target server system. Background technique [0002] Under the current situation that all kinds of businesses are developing towards a higher and faster direction, ordinary data backup methods have been difficult to meet the needs of fast-updating businesses. In order to trace historical problems or differences in historical data more accurately, many businesses need to simultaneously Multiple versions of backup data are stored, and the multiple versions are time-differentiated. Usually, the data of the business system is accumulated, and the difference between backup data of multiple different versions is only the end point. [0003] There are mainly three existing backup methods, full backup, incremental backup, and differential backup. Such as figure 1 The schematic diagram of the principle of full backup is shown...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
Inventor 杨剑林奎杨大勇赵坤荣许振成
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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