# Testing New Hard Drives

Find out the disks on the system

cat /var/run/dmesg.boot


Run the short test in the background1.

smartctl -t short /dev/ada0


Then run a conveyance test (for any damage during shipping)

smartctl -t conveyance /dev/ada0


badblocks -ws /dev/ada0


Then run a long test4.

smartctl -t long /dev/ada0


The -a flag shows you everything about the drives

smartctl -a /dev/ada0


including the time remaining for the tests

Self-test execution status:      ( 249) Self-test routine in progress...
90% of test remaining.


and the time it would take to run the tests:

Short self-test routine
recommended polling time:    (   2) minutes.
Extended self-test routine
recommended polling time:    ( 529) minutes.
Conveyance self-test routine
recommended polling time:    (   5) minutes.


To see the results after the tests have run

smartctl -l selftest /dev/ada0


## Footnotes

1. Use -C to run in foreground. But then again, why would you? ↩︎

2. The non-destructive version is badblocks -ns↩︎

3. This is a 2-phase, 4-pass command that will take a long time. On a 4TB WD Red, the whole process was done in about 75 hours. ↩︎

4. This took about 8 hours on a 4TB WD Red. ↩︎