Diagnostics HDD using smartmontools

smartmontools – (S.M.A.R.T. Monitoring Tools) console utility for diagnosing the status of hard drives supporting S.M.A.R.T. technology.
smartmontools has two utilities, smartctl for monitoring S.M.A.R.T. and a smartd background process that automatically polls devices and records errors.

Installation in Linux Ubuntu/Debian:

sudo apt-get install smartmontools

Help about the utility:

smartctl -h

Examples:
Verification of the support of S.M.A.R.T. and SCT ERC:

smartctl -i -d sat /dev/sda
sudo smartctl -a /dev/sda  | grep SCT

Full information about HDD:

smartctl --all /dev/sda

HDD status evaluation:

smartctl -H /dev/sda

HDD error log:

smartctl -l error /dev/sda

Drive integrity test:

smartctl --test long /dev/sda

See also:
Description of SMART attributes
Linux disk test for errors and broken sectors

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