smartctl -l xselftest,selftest fails to fall back to selftest, reporting:

# smartctl -l xselftest,selftest /dev/sda
smartctl 5.40 2010-02-03 r3060 [i686-pc-linux-gnu] (local build)
Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
General Purpose Logging (GPL) feature set supported
SMART Extended Self-test Log Version: 1 (1 sectors)
Invalid Self-test Log index = 0x0080 (reserved = 0x00)
# 

It seems that smartctl sees the Extended Self-Test Log feature as supported, but the drive either doesn't support it, or supports it improperly. A special case for the X25-M might suppress this problem and cause the fallback to work properly.

~$ cat /etc/smartd.conf
/dev/disk/by-id/scsi-SATA_KingSpec_KDM-44VVS14413121600085 -I 194
#/dev/sdb -I 194
DEVICESCAN -a -o on -S on -n standby,q -s (S/../.././02|L/../../6/03) -W 4,40,45 -m root

referencing the disk directly allows my to exclude it from temperature monitoring, using /by-id/ fails

~$ journalctl -f

Jan 29 14:28:17 store04 smartd[1337]: smartd 6.2 2013-07-26 r3841 [i686-linux-3.11.6-4-pae] (SUSE RPM)
Jan 29 14:28:17 store04 smartd[1337]: Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
Jan 29 14:28:17 store04 smartd[1337]: Opened configuration file /etc/smartd.conf
Jan 29 14:28:17 store04 smartd[1337]: Drive: /dev/disk/by-id/scsi-SATA_KingSpec_KDM-44VVS14413121600085, implied '-a' Directive o...rtd.conf
Jan 29 14:28:17 store04 smartd[1337]: Configuration file /etc/smartd.conf was parsed, found DEVICESCAN, scanning devices
Jan 29 14:28:17 store04 smartd[1337]: Device: /dev/disk/by-id/scsi-SATA_KingSpec_KDM-44VVS14413121600085, type changed from 'scsi' to 'sat'
Jan 29 14:28:17 store04 smartd[1337]: Device: /dev/disk/by-id/scsi-SATA_KingSpec_KDM-44VVS14413121600085 [SAT], opened
...
Jan 29 14:28:17 store04 smartd[1337]: Device: /dev/sdb [SAT], opened
Jan 29 14:28:17 store04 smartd[1337]: Device: /dev/sdb [SAT], KingSpec KDM-44VS.1-008GSS, S/N:VS14413121600085, FW:20131018, 7.91 GB
...
Jan 29 14:28:19 store04 smartd[1337]: Device: /dev/sdb [SAT], Temperature 54 Celsius reached critical limit of 45 Celsius (Min/Max 54/60)

Hi dear team,

I am using one HC1 SBC board (octa armhf CPU 32 bits) from hardkernel with one 250 GB SSD drive connected on internal USB3 to SATA.

It seems supported on Linux OS 4.18, because i can access on the device.

It seems also possible to use LVM without issues in first analyse.

But after creating around 120 logical partition (LV), i try to use smartmontools to extract statistics on the SSD.

When i launch following command :

smartctl -i /dev/sda --xall

i have : Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

/dev/sda: Unknown USB bridge [0x152d:0x0578 (0x3101)] Please specify device type with the -d option.

Current Linux kernel : root@srv-hc1-110:~# uname -a Linux srv-hc1-110 4.18.0-0.bpo.3-armmp-lpae #1 SMP Debian 4.18.20-2~bpo9+1 (2018-12-08) armv7l GNU/Linux root@srv-hc1-110:~# dpkg -l |grep smartmon ii smartmontools 6.5+svn4324-1 armhf control and monitor storage systems using S.M.A.R.T.

Thanks in advance for your help Best regards