CN112380051A

CN112380051A - Application method based on cloud server data backup and fault service quick recovery

Info

Publication number: CN112380051A
Application number: CN202011137647.0A
Authority: CN
Inventors: 邬玉良
Original assignee: Zhongke Hot Standby Beijing Cloud Computing Technology Co ltd
Current assignee: Zhongke Hot Standby Beijing Cloud Computing Technology Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-02-19

Abstract

An application method based on cloud server data backup and fault service quick recovery. The invention relates to the field of computer Cloud computing, and provides safe and reliable elastic computing service for a Cloud Virtual Machine (CVM). Only a few minutes are needed, the CVM can be acquired and enabled at the cloud end, and therefore the computing requirement is met. When the cloud server is a cloud hard disk host, business data can be backed up by creating a system disk custom mirror image and a data disk snapshot. When the cloud host is down, the quick recovery function of the cloud host can be realized, so that the data security is improved, and the data of the user is more effectively protected.

Description

Application method based on cloud server data backup and fault service quick recovery

Technical Field

The invention relates to an application method based on cloud server data backup and fault service quick recovery, and belongs to the field of cloud computing disaster recovery backup.

Background

In the beginning of the new century, people are moving into the knowledge-economy age with information technology as the core, information resources become important strategic resources equal to materials and energy, and the information-based construction is accelerated in all countries of the world as the development strategy of the country. With the continuous promotion of informatization construction, business systems are continuously expanded, the data volume generated by business information systems is increased day by day, the importance is gradually improved, and many enterprises begin to deploy business applications to the cloud. A Cloud Virtual Machine (CVM) provides a secure and reliable elastic computing service for you. Only a few minutes are needed, the CVM can be acquired and enabled at the cloud end, and therefore the computing requirement is met. With the change of business requirements, the computing resources can be expanded or reduced in real time. The CVM supports charging according to actually used resources, and can save calculation cost for you. The CVM can greatly reduce the purchasing cost of software and hardware and simplify the IT operation and maintenance work.

During the production process, we encounter various risks. If effective measures cannot be taken for risks, once the cloud server is down for some reason, great loss can be caused, and especially when core data is lost, the whole business system is completely possibly paralyzed. For some user critical applications, any short downtime of the cloud server may result in significant losses. Data backup is the basis of disaster recovery, and refers to a process of copying all or part of a data set from a hard disk or an array of an application host to another storage medium in order to prevent data loss caused by misoperation of a system or system failure.

The traditional backup method has low efficiency, and after a fault occurs, the recovery is long and tedious, and the operability is very low. A typical user backup process is such that: incremental backups are performed once a day in the early morning and then full backups are performed every weekend in the early morning. In this way, once a data disaster occurs, a user can recover data for a certain day (note that it is in units of days), and thus in the worst case, the data may be lost for the entire day.

Therefore, to ensure higher security of data, users must perform online real-time replication on online systems, and as much as possible, use disk management techniques such as snapshots to maintain high availability of data.

Disclosure of Invention

The invention aims to realize continuous capture or tracking of any change of target data on the premise of not influencing the operation of a service system, and can recover to any previous time point when software and hardware faults occur in the service system, and the method adopts a technology based on continuous data protection to guarantee.

In order to achieve the purpose of service continuity, the technical scheme of the invention is realized as follows:

the technology is different from the traditional snapshot storage, adopts a passive mechanism, senses the disk refreshing action of a database cache, marks the disk refreshing action on an I/O record, and automatically backs up the file data change part together with a current System Time Stamp (System Time Stamp) to a storage body in advance.

The technology is used for continuously monitoring and backing up data change of the data server, can be recovered to any past time point, is real-time backup, and cannot cause data loss.

The method comprises the following steps:

firstly: a client is installed on the protected server, and a passive mechanism is adopted to sense the action of caching and disk-brushing of the database and mark the action on the I/O record;

secondly, the method comprises the following steps: on the premise of not influencing the operation of main services, the method can continuously capture or track any change of target data, and incrementally backups the data to a memory bank;

and finally: when the service system has software and hardware faults, the data of any previous time point can be recovered, and the data can not be lost.

Drawings

FIG. 1 is a flowchart of a method for rapidly recovering a cloud server failure service

Detailed Description

In order to make the object, technical solution and feasibility of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a method based on quick recovery, which ensures that data is safer and more reliable.

The method comprises the following steps:

the first step is as follows: a client is installed on the protected server, and a passive mechanism is adopted to sense the action of caching and disk-brushing of the database and mark the action on the I/O record;

the second step is that: on the premise of not influencing the operation of main services, the method can continuously capture or track any change of target data, and incrementally backups the data to a memory bank;

the third step: when the service system has software and hardware faults, the data of any previous time point can be recovered, and the data can not be lost.

The data can be restored by restoring the disk to the point in time containing the deleted data in a snapshot rollback manner. Rolling back the disk requires the ECS to be in a stopped state, so first, returning to the management page of the ECS instance, clicking the instance details of the left navigation bar can view the basic information of the ECS instance. Then, clicking on the stop in the upper right corner stops the ECS instance.

And in the popped-up interface, selecting the stopping mode as stopping, and clicking to determine after the stopping mode is finished.

When the ECS instance stops successfully, first, in the left column of the instance, click the instance snapshot and enter the ECS snapshot page. Then, in the right snapshot list, the created data disk snapshot is found, and the rollback disk is clicked to rollback the disk data.

And in a prompt dialog box of the popped rollback disk, the example is started immediately after the rollback is selected, and after the completion, the disk is clicked to determine and begins to be rolled back.

After the disk rollback is successful, the state of the ECS will become operational.

And after the ECS instance is successfully started, remotely logging in the ECS instance again, and mounting the data disk to a mounting point by using the following command again.

Claims

1. An application method based on cloud server data backup and fault service quick recovery is characterized in that:

a client is installed on the protected server, and a passive mechanism is adopted to sense the action of caching and disk-brushing of the database and mark the action on the I/O record;

on the premise of not influencing the operation of main services, the method can continuously capture or track any change of target data, and incrementally backups the data to a memory bank;

when the service system has software and hardware faults, the data of any previous time point can be recovered, and the data can not be lost.

2. The method of claim 1, wherein changes to the target data are captured by the client and sent to the cloud host.

3. The method as recited in claim 1, wherein the data at any point in time is restored by a snapshot technique to quickly restore the cloud host data.