---
title: "Creating a volume from a backup"
description: "Find out how to create additional disks from a snapshot of an additional disk"
url: https://docs.ovhcloud.com/en/guides/public-cloud/compute/storage-create-volume-from-backup
lang: en
lastUpdated: 2025-04-28
---
# Creating a volume from a backup

## Objective

You can attach additional disks to your Public Cloud instances based on previously created volume snapshots.

This may be useful in the following cases:

- If you want to restore additional disk data.
- If you want to have a highly available, high-performance storage space with your data.
- If you want to move your data to another instance.

**This guide explains how to create and configure an additional disk on one of your instances from an additional disk backup.**

## Requirements

- A [Public Cloud instance](https://www.ovhcloud.com/en-gb/public-cloud/) in your OVHcloud account
- A volume snapshot in the same OpenStack region
- Administrative access (sudo) to your instance via SSH or RDP


***

### OVHcloud Control Panel Access

- **Direct link:** <ManagerLink to="/#/pci/projects">Public Cloud Projects</ManagerLink>
- **Navigation path:** <code className="action">Public Cloud</code> > Select your project

***


## Instructions

### Creating the disk from a backup

Click `Volume Snapshot
` in the left-hand navigation bar under **Storage & backup**
.
To the right of the backup you want to create a volume from, click the `...
` button, then `Create a volume
`.
![create volume](/images/public-cloud/compute/create-volume-from-snapshot/volume01.png)
Then enter the name and capacity of the new disk, and click `Create the volume
`.
![create volume](/images/public-cloud/compute/create-volume-from-snapshot/volume02.png)
It may take a few minutes to create the disk, depending on its size.

### Attaching the disk to an instance

Once the disk has been created, you can choose to attach it to an instance. To do this, click `Block Storage
` in the left-hand navigation bar under **Storage & backup**
.
To the right of the volume of your choice, click on the `...
` button, then `Attach to instance
`.
![attaching volume](/images/public-cloud/compute/create-volume-from-snapshot/volume03.png)
Now select the instance and click `Confirm
` to attach the disk.
![attaching volume](/images/public-cloud/compute/create-volume-from-snapshot/volume04.png)
The process of attaching the disk to your instance will then begin, and this may take a few minutes.

![attaching volume](/images/public-cloud/compute/create-volume-from-snapshot/volume05.png)
:::warning
Make sure to not leave the current page in your OVHcloud Control Panel while the disk is being attached. This may interrupt the process.
:::

Once the attachment is complete, you can follow these steps on how to configure the additional disk [using Linux](/en/guides/public-cloud/compute/create-and-configure-an-additional-disk-on-an-instance.md#using-linux) or [using Windows](/en/guides/public-cloud/compute/create-and-configure-an-additional-disk-on-an-instance.md#using-windows).

## Go further

Join our [community of users](https://community.ovhcloud.com/).