Determine Available Disk Space on Hetzner Volume (K3S)

DetermineAvailableDiskSpaceOnHetznerVolume.md

This guide will help you determine the available disk space on a Hetzner volume assigned to a K3S node.

1- Find Volume ID

• Using hcloud CLI:

Run the following command to list your volumes:

hcloud volume list

Example output:

# ID          NAME                                  SIZE    SERVER            LOCATION   AGE
# 100910597   pvc-6ff6af69-3c9d-47d1-xxxx-xxxxxxx   30 GB   k3s-agent-x-xxx   fsn1       14m

• Using Hetzner UI:

You can also find the volume ID using the Hetzner Cloud UI:

2- Find Linux Path of Volume

Use the volume ID to describe the volume and find its Linux device path:

hcloud volume describe 100910597

Example output:

# ID:		100910597
# Name:		pvc-6ff6af69-3c9d-47d1-xxxx-xxxxxxx
# Size:		30 GB
# Linux Device:	/dev/disk/by-id/scsi-0HC_Volume_100910597

3- Run df command via SSH

Use the df command to check the disk space usage. It will connect to your node via SSH and then will run the df command:

ssh root@nodeip df -h /dev/disk/by-id/scsi-0HC_Volume_100910597

Example

$ ssh [email protected] -i ~/.ssh/id_ed25519_hetzner_cloud -o StrictHostKeyChecking=no -p 22 df -h /dev/disk/by-id/scsi-0HC_Volume_100910597

Example output:

# Filesystem                                  Size  Used   Avail Use%
# /dev/disk/by-id/scsi-0HC_Volume_100910597   30G   5.5G   24G   19%

Security Tips

• Ensure your SSH keys are securely stored.
• Use -o StrictHostKeyChecking=yes to avoid man-in-the-middle attacks.