HELP : disk usage at 100% after a backup

Installation
1

Hi,
I tried to make a backup on HA.
The backup failed and now disk usage is 100%.
I tried to see files in ssh
With command "du -sh / ", I only see 1Go total.
With command “df -h”, I see 30Gb used, 100% used

Please, how can I see and delete other 29Gb of files ?
How can I solve this problem ?

Thanks

2

What kind of system are you running? This is going to determine your next steps.

3

My system is HAOS for VMWare (ESXi), I used the ova file from HA
More informations:
Home Assistant 2023.6.3
Supervisor 2023.06.4
Operating System 10.3
Interface utilisateur : 20230608.0 - latest

Thanks for help