[Smartmontools-database] USB external drive reports "Read Device Identity failed"

[Robert Stocker]

That definitely looks like something I need to look at long and hard before
trying to implement on my DVR. Is there a way to be "sure [my] particular
device does properly support SAT mode even though the kernel detects it as
a device that does not"? I see the linked thread that I'm guessing used to
tell you how to do that is crossed out, presumably because it no longer
does?

On Fri, Dec 4, 2020 at 11:56 AM Christian Franke <
Christian.Franke at t-online.de> wrote:

> Robert Stocker wrote:
> > Happy for any suggestions!
> >
> > Seagate (STEB8000100) Expansion Desktop 8TB, USB 3.0 attached to
> > Raspberry Pi 4B. Listed at http://www.linux-usb.org/usb.ids albeit
> > with different model number and capacity.
> >
> > relevant lsusb output:
> > ID 0bc2:331a Seagate RSS LLC
> >
> > Trying 'sudo smartctl --all -d sat -T permissive /dev/sda' returns:
> >
> > smartctl 6.6 2017-11-05 r4594 [armv7l-linux-5.4.72-v7l+] (local build)
> > Copyright (C) 2002-17, Bruce Allen, Christian Franke,
> > www.smartmontools.org <http://www.smartmontools.org>
> >
> > Read Device Identity failed: scsi error unsupported field in scsi command
> >
>
> Seagate devices usually support SAT, except on Linux if UAS transfer
> mode is enabled:
> https://www.smartmontools.org/wiki/SAT-with-UAS-Linux
>
>
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