Disk usage 98.8% Why?

Not what hardware, what install method. Go to the configuration / info menu, copy and paste the results here.

The last time this sort of thing happened to me, no amount of disk commands could find it. In the end it was from the Unifi Controller Addon. It looked like it was making daily or weekly backups, and they were slowly filling up the SSD.

That is because the unifi addon runs in it’s own docker container and you were likely only using the disk commands in the home assistant container.

This was why we asked Alberto what addons he is running. Which he still has not answered.

The best way to find what is taking space:

cd /
du --max-depth=1 |sort -n

then go into the biggest directory (the one listed last) and do the same - rinse and repeat.

I found too that there was a big directory created by the unifi docker, which directory was was mapped into the host file system.

I have this addon:
AdGuard, CEC Scanner,Check home assistant configuration, duck dns, FTP, Log viewer, Mosquitto broker, Node red, Portainer, Samba, Terminal, Visual studio code, Zigbee2mqtt Edge, Motion Eye

When open portainer show red alert: Unable to retrieve stacks

That’s an issue with supervisor v246. It will be fixed in v247.

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