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Remote disaster recovery method for distributed storage

A distributed storage and off-site technology, applied in the direction of response error generation, redundant data error detection in computing, transmission system, etc., can solve the problem of writing twice, increasing the difficulty of operation and maintenance, and greatly affecting the performance of ceph and other issues to achieve the effect of reducing difficulty, avoiding uncontrollable situations, and reducing performance impact

Inactive Publication Date: 2020-02-07
GUANGDONG EFLYCLOUD COMPUTING CO LTD +1
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AI Technical Summary

Problems solved by technology

At present, cloud providers generally adopt the Rbd-mirror remote disaster recovery method for remote disaster recovery, and the RBD-mirror remote disaster recovery method has the following series of disadvantages: 1. The same data needs to be written twice by the client ;2. RBD-mirror has too much impact on the performance of ceph; 3. The backup process is uncontrollable; 4. Increase the difficulty of operation and maintenance

Method used

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  • Remote disaster recovery method for distributed storage

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Embodiment 1

[0020] The present invention provides a remote disaster recovery method based on distributed storage of differential files, mainly through two backup processes, such as figure 1 Shown, the method step of the present invention is:

[0021] The first backup process:

[0022] S10, creating a primary cluster database and a standby cluster database;

[0023] S11. Create an rbd on the standby cluster database as the basic rbd;

[0024] S12. Create a snapshot of rbd on the main cluster database, and name the snapshot; generate and name a difference file on the main cluster database, and the name of this difference file is consistent with the previous snapshot name; wherein, the naming method of the snapshot can be The method of use is: set a unique id corresponding to the snapshot, and the id is arranged in increasing order according to the number, for example, from 1, 2, 3, 4, 5, 6, 7, 8, 9, 10..., or all are singular or double number; the snapshot naming method of the present in...

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Abstract

The invention discloses a remote disaster recovery method and system for distributed storage. The remote disaster recovery method comprises: creating an rbd on a backup cluster database to serve as abasic rbd; creating a snapshot of rbd on the main cluster database, and naming the snapshot; generating a difference file on the main cluster database and naming the difference file, wherein the nameof the difference file is consistent with the snapshot name; importing the difference file into a basic rbd of a standby cluster database; searching the latest snapshot of rbd on the main cluster database, and confirming whether the snapshot with the same name exists on the standby cluster database or not; if so, continuing to create a new snapshot of rbd on the main cluster database and naming the new snapshot; enabling the main cluster database to generate a difference file and name the difference file, wherein the name of the difference file is consistent with the name of the snapshot withthe same name in the step S4; and importing the difference file into the basic rbd of the standby cluster database. According to the method, the RBD-mirror remote disaster recovery can quickly read the data without repetition, so that the influence on the performance of ceph is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of storage data disaster recovery, in particular to a remote disaster recovery method based on distributed storage of differential files. Background technique [0002] Ceph is a software-defined open source distributed object storage solution for PB-level massive data storage platforms. With the development of big data in recent years, Ceph has been widely used in the field of distributed storage because of its excellent performance, reliability and scalability. As an enterprise-level open source platform, Ceph can provide unified software-defined storage on standard economical servers and disks. It combines the storage of data blocks, objects, and files into one platform. It is a reliable, automatic rebalancing, and automatic recovery. Distributed storage system. Ceph can achieve simplified scalability to easily meet the needs of users, has fault tolerance, and further reduces single points of failure. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/24G06F11/14
CPCG06F11/1448G06F11/1464G06F11/1471H04L41/0663H04L67/1097
Inventor 李坤祥史伟闵宇
Owner GUANGDONG EFLYCLOUD COMPUTING CO LTD
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