Identity

Property	Value
Binary	`smartctl`
Config	`/etc/smartd.conf` (for the background monitoring daemon `smartd`)
Logs	Syslog / journald via `smartd`; self-test results stored on device
Type	CLI tool (part of smartmontools)
Install	`apt install smartmontools` / `dnf install smartmontools`

Key Operations

Task	Command
Overall health check (pass/fail summary)	`sudo smartctl -H /dev/sda`
All SMART attributes and device info	`sudo smartctl -a /dev/sda`
Device identity only (model, serial, firmware)	`sudo smartctl -i /dev/sda`
Start a short self-test (~2 minutes)	`sudo smartctl -t short /dev/sda`
Start a long self-test (hours, depends on size)	`sudo smartctl -t long /dev/sda`

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