# smartctl > Monitor disk health including SMART data. > More information: . - Display SMART health summary: `sudo smartctl --health {{/dev/sdX}}` - Display device information: `sudo smartctl --info {{/dev/sdX}}` - Start a short self-test in the background: `sudo smartctl --test short {{/dev/sdX}}` - Display current/last self-test status and other SMART capabilities: `sudo smartctl --capabilities {{/dev/sdX}}` - Display exhaustive SMART data: `sudo smartctl --all {{/dev/sdX}}`