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.
- Access to the OVHcloud Control Panel
- A Public Cloud instance in your OVHcloud account
- A volume snapshot in the same OpenStack region
- Administrative access (root) to your instance via SSH or RDP
Creating the disk from a backup
Log in to the OVHcloud Control Panel and open your
Public Cloud project. Then click
Volume Snapshot in the left-hand navigation bar under
To the right of the backup you want to create a volume from, click the
... button, then
Create a volume.
Then enter the name and capacity of the new disk, and click
Create the volume.
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
To the right of the volume of your choice, click on the
... button, then
Attach to instance.
Now select the instance and click
Confirm to attach the disk.
The process of attaching the disk to your instance will then begin, and this may take a few minutes.
Make sure to not leave the current page in your OVHcloud Control Panel while the disk is being attached. This may interrupt the process.
Having read this guide, you should be able to create a volume in your Public Cloud from a volume snapshot and attach it to an instance.