root@xx:~# service smartd restart
root@xx:~# systemctl status smartmontools
● smartd.service - Self Monitoring and Reporting Technology (SMART) Daemon
   Loaded: loaded (/lib/systemd/system/smartd.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2021-01-14 22:19:12 CET; 5s ago
     Docs: man:smartd(8)
           man:smartd.conf(5)
 Main PID: 8022 (smartd)
   Memory: 1.0M
   CGroup: /system.slice/smartd.service
           └─8022 /usr/sbin/smartd -n --quit=never --interval=1800

Jan 14 22:19:12 DK smartd[8022]: Configuration file /etc/smartd.conf parsed.
Jan 14 22:19:12 DK smartd[8022]: Device: /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDH6VJKY [SAT], opened
Jan 14 22:19:12 DK smartd[8022]: Device: /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDH6VJKY [SAT], ST4000VN008-2DR166, S/N:ZDH6VJKY, WWN:5-000c50-0b666351c, FW:
Jan 14 22:19:12 DK smartd[8022]: Device: /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDH6VJKY [SAT], found in smartd database: Seagate IronWolf
Jan 14 22:19:12 DK smartd[8022]: Device: /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDH6VJKY [SAT], enabled SMART Attribute Autosave.
Jan 14 22:19:12 DK smartd[8022]: Device: /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDH6VJKY [SAT], enabled SMART Automatic Offline Testing.
Jan 14 22:19:12 DK smartd[8022]: Device: /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDH6VJKY [SAT], is SMART capable. Adding to "monitor" list.
Jan 14 22:19:12 DK smartd[8022]: Device: /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDH6VJKY [SAT], state read from /var/lib/smartmontools/smartd.ST4000VN008_2DR
Jan 14 22:19:12 DK smartd[8022]: Monitoring 1 ATA/SATA, 0 SCSI/SAS and 0 NVMe devices
Jan 14 22:19:12 DK smartd[8022]: Device: /dev/disk/by-id/ata-ST4000VN008-2DR166_ZDH6VJKY [SAT], state written to /var/lib/smartmontools/smartd.ST4000VN008_2D
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