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A method and system for multi-cloud data backup

A technology of data backup and backup, which is applied in transmission systems and redundancy in computing for data error detection and response error generation, and can solve data loss in the cloud, loss of backup, increase in labor costs and system maintenance costs and other issues to achieve the effect of reducing labor costs, ensuring safety and integrity, and reducing system maintenance costs

Active Publication Date: 2018-10-30
HANGZHOU HIKVISION SYST TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in order to ensure the security and integrity of the data, the data stored in the cloud is usually backed up in the same cloud. However, when an unpredictable error occurs in the cloud, the data in the cloud will be completely lost, and the corresponding ground, the backup will be useless
[0003] For this reason, it is proposed in the prior art that data in the cloud can be backed up using physical media outside the cloud. However, this method requires manual intervention and even termination of cloud services, thereby increasing labor costs and system maintenance costs.

Method used

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  • A method and system for multi-cloud data backup
  • A method and system for multi-cloud data backup

Examples

Experimental program
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Effect test

example 1

[0050] Assuming that the number of data backup copies M is 1, when the master node performs a certain scan, it finds that the number of backed up copies N corresponding to a certain data block is 0, and it is determined that there is one eligible destination cloud A, then the destination cloud A can be The cloud entrance IP of cloud A is sent to the data node B where the data block is located, and the data node B backs up the data block to a data node in the destination cloud A; after that, add 1 to the value of N, which is equal to M, The backup for this data block is complete.

example 2

[0052] Assuming that the number of data backup copies M is 2, when the master node performs a certain scan, it finds that the number of backup copies N corresponding to a certain data block is 1, and it is determined that there are 2 eligible destination clouds, namely destination cloud A and destination cloud Cloud B, then, one target cloud can be selected from these two target clouds, assuming it is target cloud A, and the cloud entrance IP of target cloud A is sent to data node C where the data block is located, and the data node C backs up the data block to a data node in the destination cloud A; then, adds 1 to the value of N, which is equal to M, and the backup of the data block is completed.

example 3

[0054] Assuming that the number of data backup copies M is 3, when the master node performs a certain scan, it finds that the number of backed up copies N corresponding to a certain data block is 1, and it is determined that there is one eligible destination cloud A, then the destination cloud A can be The cloud entrance IP of cloud A is sent to the data node B where the data block is located, and data node B backs up the data block to a data node in the destination cloud A; after that, the value of N is increased by 1; when the master node goes down When scanning once, it is found that the N corresponding to the data block is 2, and it is determined that there is one eligible destination cloud C, then the cloud entrance IP of destination cloud C can be sent to data node B, and data node B will The data block is backed up to a data node in the destination cloud C; after that, add 1 to the value of N, which is equal to M, and the backup of the data block is completed.

[0055] ...

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PUM

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Abstract

The invention discloses a backup method for multi-cloud data. The backup method comprises the following steps: receiving a data storage request from a user by a master node in cloud, selecting one data node from the data nodes in the cloud and informing the user; receiving a to-be-stored data from the user by the selected data node, dividing the to-be-stored data into a plurality of data blocks and then storing; while a scanning condition is met at each time, scanning each data block in the cloud by the master node; if a to-be-backup data block is found and the existence of a target cloud meeting the condition is determined, performing backup on the data block to the target cloud through the data node of the data block. The invention also discloses a cloud system. According to the technical scheme provided by the invention, the safety and integrity of the data can be ensured and the labor cost and the system maintenance cost can be lowered.

Description

technical field [0001] The invention relates to data backup technology, in particular to a method and system for multi-cloud data backup. Background technique [0002] In the prior art, in order to ensure the security and integrity of the data, the data stored in the cloud is usually backed up in the same cloud. However, when an unpredictable error occurs in the cloud, the data in the cloud will be completely lost, and the corresponding Otherwise, the backup will be useless. [0003] For this reason, it is proposed in the prior art that data in the cloud can be backed up using physical media outside the cloud. However, this method requires manual intervention and even termination of cloud services, thereby increasing labor costs and system maintenance costs. . Contents of the invention [0004] In view of this, the present invention provides a method and system for data backup among multiple clouds, which can not only ensure data security and integrity, but also reduce l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14H04L29/08
Inventor 夏伟强汪渭春林起芊
Owner HANGZHOU HIKVISION SYST TECH