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This article mainly explains "how to achieve system reinstallation, snapshot backup, and restore data rollback of Ali cloud ECS server". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to realize system reinstallation, snapshot backup and recovery data rollback of Ali cloud ECS server".

Alibaba Cloud ECS server reinstalls the system and selects OS

Generally speaking, if we choose the OS system after we start to set up the ECS server and configure the WEB environment, we rarely need to reinstall the system unless there are various unstable security problems, or the version of the WEB server environment needs to be upgraded. What if we need to reinstall the ECS server system?

1. Shut down the current system

We need to stop the current server first, or we can't choose to install the new system.

2. Select the system installation that needs to be reset

We find the link to replace the system disk, then select the desired image and set the ROOT password.

After setting up, we can click the button to confirm and wait for the new system to be installed automatically. After installation, you can reinstall and configure the system environment through your SSH login account. If there is important data in our server, remember to back up the data, snapshot backup and other operations, because all the data will be lost after resetting the system.

Snapshot backup and rollback recovery data of Ali Cloud ECS server

Most of our users transition from virtual hosts to VPS and cloud hosts. We must be well aware of the importance of website data. When using virtual hosts, we may rely on regular backups from host vendors. Basically, reliable service providers will help us back up. Even if we use the era of cloud hosts, service providers will theoretically help us to back up. However, it is still difficult to retrieve or restore data after it is really lost. After all, it is not for one of our VPS backups. Most of the time we need to back up our own website or server snapshot backup.

Like many service providers, Aliyun ECS has fast snapshot backups. At present, snapshot backups are free. Lao Zuo has seen that it will also help us to make automatic snapshot backups once a day. The so-called snapshot backup includes the function of backing up our environment and data together, and if the server misoperates or the website data needs to be restored, all systems can be restored directly.

1. Set a custom snapshot backup policy

In theory, it will automatically help us back up once a day, but if we encounter special changes, we still back up by ourselves.

We need to stop the current server first, or we can't choose to install the new system.

2. Select the system installation that needs to be reset

We can select the rollback disk according to the label of the snapshot backup. During the rollback process, we have to pause the current operation, and then click rollback disk. If we have a data disk, we can select the data disk or the system disk respectively.

PS: if we are a website project, although the snapshot backup is very good, it is backed up together with the environment, and it is difficult to control the separate migration of data, so we also need to backup individual website files and databases locally on a regular basis.

Thank you for your reading. The above is the content of "how to realize system reinstallation, snapshot backup and recovery data rollback of Ali Cloud ECS server". After the study of this article, I believe you have a deeper understanding of how to realize system reinstallation, snapshot backup and recovery data rollback of Ali Cloud ECS server. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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