Disk Snapshot – What it is and how it works
Posted: Sun Jan 19, 2025 7:07 am
A data center usually offers a series of features to protect its customers' data. Disk snapshots are one of them, used as a way to keep a safe copy of files on a server. However, that's not exactly how it works.
What is a snapshot?
As the name suggests, a snapshot is a “photo” of the current state of your server. It generates an image of the current status of your disk, saving file metadata and configurations made. Therefore, in case of an emergency, such as data corruption, it is possible to use a snapshot for a quick restoration to the point in time.
Difference between snapshot and backup
At first glance, a snapshot seems like a more interesting hong kong telegram lead alternative than a backup because it takes up less disk space and allows for a quick system restore. But imagine the following situation: you have several projects running on the same server. One of them has a problem, and you need to recover a previous version. With a backup system, you only need to recover the data that had the problem, without affecting the other projects. In the case of a snapshot, all files are restored to a point in the past, including those that did not have problems. In other words, successful changes to the data may be lost.
Therefore, the snapshot is considered only as an action within the backup strategy, being used in specific cases, and not as the final solution for saving server data.
Snapshot by OpenStack at Under
OpenStack allows you to quickly and easily create disk snapshots through Horizon or via the CLI command line. You can create a snapshot routine and restore to a recovery point with ease, as well as manage multiple instances of saved images.
Under has special conditions for storing disk snapshots in an integrated manner with OpenStack. To learn more, talk to our team .
What is a snapshot?
As the name suggests, a snapshot is a “photo” of the current state of your server. It generates an image of the current status of your disk, saving file metadata and configurations made. Therefore, in case of an emergency, such as data corruption, it is possible to use a snapshot for a quick restoration to the point in time.
Difference between snapshot and backup
At first glance, a snapshot seems like a more interesting hong kong telegram lead alternative than a backup because it takes up less disk space and allows for a quick system restore. But imagine the following situation: you have several projects running on the same server. One of them has a problem, and you need to recover a previous version. With a backup system, you only need to recover the data that had the problem, without affecting the other projects. In the case of a snapshot, all files are restored to a point in the past, including those that did not have problems. In other words, successful changes to the data may be lost.
Therefore, the snapshot is considered only as an action within the backup strategy, being used in specific cases, and not as the final solution for saving server data.
Snapshot by OpenStack at Under
OpenStack allows you to quickly and easily create disk snapshots through Horizon or via the CLI command line. You can create a snapshot routine and restore to a recovery point with ease, as well as manage multiple instances of saved images.
Under has special conditions for storing disk snapshots in an integrated manner with OpenStack. To learn more, talk to our team .