Hi, I have the same problem now with one of my nodes. I reconnected the external USB drive, restarted everything, but still my node keeps restarting almost every minute. In between it’s downloading and uploading, but then suddenly I get the error “Unable to read the disk”.
What’s your setup?
I had similar issues with my Raspberry Pi 4B in the past because it can barely power one external 2.5" drive properly, depending on the case and the HDD itself…
The disk was keeping restarting. If that is your problem, this would probably be visible in dmesg if you’re on Linux.
In my case, I had to get a powered usb3 hub, and now all of my 4 disks connected to it run like a charm, and I even have 3 spare sockets
Pro-tip: if you were to get one of those, you wanna make sure it actually powers all usb sockets, with enough power (most cheap ones power only some sockets, or the total provided power wouldn’t allow all sockets to run disks…)
Also make sure it has physical buttons that do not get reset in case of power loss: this ensures the hub gets automatically back on if you experience some power outage.
(That applies to HDD cases by the way…)