Shulou(Shulou.com)06/02 Report--

What this article shares with you is about how to back up the virtual host. The editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

The website data on the virtual host needs to be backed up frequently to prevent accidents. In addition to the backup service provided by the host provider, the webmaster also has to download the root directory for local storage.

The virtual host provides regular backup function. in addition, because the data backup of the virtual host is different from the traditional server, the webmaster should avoid making some common mistakes.

Error 1. Install agent backup

Backup through other programs is a common misunderstanding, especially the installation of agent backup, which will not only cause a waste of host resources, but also inefficient. When multiple backups are taking place at the same time, it is easy to stagnate.

Error 2. Replace backup with virtual machine snapshot

Virtual machine snapshot can only play the role of backup for a short time, generally speaking, it is a snapshot record made before patching or upgrading the virtual host, and it can be restored to the last state if the upgrade or patch is incompatible.

Therefore, this method is only a record of a recovery point and can only restore the state of the last snapshot, but not individual files. If the data is lost, the snapshot will be useless. Second, because each snapshot is a separate file, a large number of writes can cause disk space to fill up quickly.

Error 3. Wrong way of silence

Do not know if there is a webmaster encountered, a lot of time we restore the site space data, there will be incomplete data, choose the wrong silent way is one of the reasons. Because the backup of the virtual host is done in the virtual layer, not on the client, the two silences are different and need to be confirmed before the backup.

Error 4. Shared storage

The backup of virtual space usually shares one storage with the host. If there are multiple virtual machine backups on this shared storage, it is easy to take up a shortage of resources, and even affect the operation of the host. Of course, sharing is very common, and it can not be regarded as an error, it can only be said that there will be certain restrictions when using it.

The above is how to back up the virtual host, the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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