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Hetzner Cloud Volumes are SSD-based block storage devices that you can flexibly attach to your cloud servers (CX/CCX/CPX/CAX) - similar to AWS EBS, but from 0.052 €/GB per month and in data centers according to the strictest GDPR.
Each data block is replicated three times and provided via the Hetzner network. This means high reliability without the need for a separate RAID setup.

What are Hetzner Cloud Volumes suitable for?

Use Case Added Value
Databases & Stateful Apps Persistent, high-performance SSD storage, independent of the lifecycle of the cloud server
Log & Backup Storage Quickly expandable, cheaper than an additional server
Hot-Swap during maintenance Disconnect volume, replace server, reconnect volume - no downtime
Scaling Size on-the-fly from 10 GB to 10 TB, up to 16 volumes per server

Setup: Attach a volume in 4 steps

1. Log in to the Hetzner Cloud Console and click on "Volumes"

Hetzner Cloud Volumes Overview

2. Create new volume

We click on "New Volume" and enter the desired parameters:
Create Hetzner Cloud Volume
In our example, we create a volume with a size of 10GB and the file system ext4. In the dialog, we can directly select the server to which the volume is to be attached, in our example this is "Demo". We also select that the volume should be mounted automatically. This means that the volume is available on the server immediately after creation and does not have to be mounted manually.

3. Check volume

As we selected that the volume should be automatically attached to the "Demo" server when creating the volume, we do not need to perform any further steps on the server. The volume is already mounted and ready for use. We check this by logging onto the "Demo" server and checking the mount point:

lsblk

This gives us the following output: Commandline lsblk output We see that the volume has been successfully mounted under /mnt/HC_Volume_102736947 and has a size of 10GB.

4. Use volume

Now we can use the volume as a destination for backups, logs or data from other applications.

Prices

Size Price per month Price per GB/month
10 GB 0.52 € 0.052 €
100 GB 5.24 € 0.052 €
1 TB 52.40 € 0.052 €

Conclusion

Hetzner Cloud Volumes offer affordable, high-performance and highly available block storage that can be seamlessly connected to your cloud servers - ideal for data-intensive applications or flexible test environments. With just a few clicks, you can create volumes, attach them to servers and use them immediately. Automatic replication and easy management via the Hetzner Cloud Console make it an attractive solution for DevOps teams and companies that value scalability and availability.

You can find more information about Hetzner Cloud Volumes on the official website.