Contrôle et surveille l’état d’un disque SMART (température, heures de fonctionnement, journaux d’erreurs…)
1. smartctl commands
The command generaly comes with the smartmontools package of your GNU+Linux distribution.
$ sudo smartctl -H /dev/$device (1)
$ sudo smartctl -l error /dev/$device (2)
$ sudo smartctl -a /dev/$device (3)
$ sudo smartctl -t short /dev/$device (4)| 1 | Display health status ; you may have to add -d 'scsi' for such drives, or some USB ones… |
| 2 | Recent errors |
| 3 | All info |
| 4 | Start short SMART tests (hint: a long one exists also) |
2. Outstanding smartctl -a /dev/$device results
The number of hours the device was "on" :
[…] 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 8612 […]
The number of working hours (for disks) :
[…] 3 Spin_Up_Time 0x0007 222 222 033 Pre-fail Always - 2246 […]
The remaining lifetime of SSD in term of rewriting capacities :
[…] 202 Percent_Lifetime_Remain 0x0031 096 096 000 Pre-fail Offline - 4 […]
Here the SSD consumed 4% of its manufacturer guaranteed lifetime (during 3 years and 9 000 power-on hours).
An SSD can survive 3x (to 10x) its official TBW (TeraByte Written) value, but its warranty wont…
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