Carlos E. R. wrote:
With smartctl there is no problem, it is with smartd only.
So presumably a config issue.
Huh, no, doesn't like it:
<3.6> 2020-08-08T14:25:00.839082+02:00 Isengard smartd 32172 - - Device: /dev/disk/by-id/usb-WD_My_Book_25EE_32544B5354325344-0:0, type changed from 'sat,auto' to 'scsi'
So your change to sata was ignored, presumably because the USB driver presents the drive as SCSI.
The reverse.
The way I read the above "type changed from 'sat,auto' to 'scsi'" is that the type was changed from 'sat,auto' to 'scsi' ?
The disk works fine with smartctl, it is smartd which has problems.
I wonder if the issue might be your "-d sat" in the config - seen from the kernel, the disk is not a SATA drive, but a SCSI drive.
I have tried with and without. Same problem.
Hmm. Maybe its a problem to bring up on the smartmontools list?