smartctl - Can't run select span range

Ryan Schmidt ryandesign at
Wed Jun 27 04:31:00 UTC 2018

On Jun 26, 2018, at 07:32, Ubence Quevedo wrote:

> Ubences-MacBook-Pro:ata uquevedo$ smartctl -t long /dev/disk2
> smartctl 6.6 2017-11-05 r4594 [Darwin 17.6.0 x86_64] (local build)
> Copyright (C) 2002-17, Bruce Allen, Christian Franke,
> Sending command: "Execute SMART Extended self-test routine immediately in off-line mode".
> Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
> Testing has begun.
> Please wait 206 minutes for test to complete.
> Test will complete after Tue Jun 26 08:52:02 2018
> Use smartctl -X to abort test.
> There’s no way that will complete under my system’s sleep schedule [three hour timeout for sleep] which isn’t ideal anyways.

So tell the system not to sleep while the test is running.

caffeinate -i smartctl -t long /dev/disk2

For more info:

man caffeinate

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