There is no need to install in zfs and if you read what is zfs : it is exactly not made for 1 drive. ext4 all good and adjust for ceph stuff. Best is to kill most of the log that are flodding if any error appear. how to edit prox file to set a...
i wonder, can it be possible to add a stop or timeout around that line : ( warn $err if $err; ) In order to stop the error spamming ? Like a 2-3min of multiple page of error can be sufficient.
For precision, with the method : echo options usb-storage quirks=152... that will put the drive in the storage tree at left. But if not plug at boot up : can we put a timer to de-activate the drive after like 4-5min ? If not the log will be...