'boot-pool' is consuming USB devices

‘boot-pool’ is consuming USB devices ‘sdf’ which is not recommended.

??? How to fix…

*Update: Figured it out. Need a USB-SSD Drive to use as a BOOT Device. (Scale does not like USB Devices to boot from.)

*I will save the config and reinstall Scale.

Is it as simple as just using USB SSD or USB NVME drives? That would solve one problem I have with one of my oldest servers (still on Core right now).