Date: Sat, 21 Nov 2020 22:21:17 +0100 From: Christoph Harder <shadowomf@arcor.de> To: freebsd-questions@freebsd.org Subject: Re: usb harddisk not working Message-ID: <e6cf8383-7374-eda5-9278-209e9920dd7d@arcor.de> In-Reply-To: <20201121221333.19973dbd.freebsd@edvax.de> References: <b677a42e-a351-7fd5-24e8-770b251d6ba5@arcor.de> <20201121204425.86d9c6b1.freebsd@edvax.de> <20201121212613.153cfbda@archlinux> <20201121221333.19973dbd.freebsd@edvax.de>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --Z0zQdz23IwQW8m8UPJzg8M1m8ut8pwyXd Content-Type: multipart/mixed; boundary="RkbEU2ZNb8AMvpmSlZOPq5qeNCaFyuEgq" --RkbEU2ZNb8AMvpmSlZOPq5qeNCaFyuEgq Content-Type: multipart/mixed; boundary="------------AD2FE9359721BD775256D476" Content-Language: de-DE This is a multi-part message in MIME format. --------------AD2FE9359721BD775256D476 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello, thank you for the fast feedback. Regarding power saving I suspected as much and won't persue it further. I'll try to change the usb cable, maybe I'm "lucky" and it works. Best regards, Christoph Am 21.11.2020 um 22:13 schrieb Polytropon: > On Sat, 21 Nov 2020 21:26:13 +0100, Ralf Mardorf wrote: >> On Sat, 21 Nov 2020 20:44:25 +0100, Polytropon wrote: >>> This could be a wiring thing, but in my experience with cheap USB dis= k >>> enclosings, it's probably a version of the firmware (the part that >>> does "USB plug <---> SATA disk") that is not working properly and >>> according to the standard. This can also explain the "works here, but= >>> not there" and "works sometimes, but not always". >> >> Hahaha, >> >> IIRC we already agreed off-list regarding USB enclosures and the >> firmware a while ago. >> >> I can not remember that we discussed wiring issues. >> >> IMO it's super-very-most-unlikely a wiring issue. I can't imagine a >> reasonable wiring issue. >=20 > I wanteed to mention this because I experienced that once: > It was a USB enclosure with the came it came with - worked > sometimes, on some systems, but was hard to predict _where_ > it would work _when_. Turned out, after removing the > original USB cable and using a different one, the disk > worked everywhere every time. :-) >=20 > I called this "wiring issue" because the only thing involved > is the wires in the USB cable. There _might_ be wiring > problems within the enclosure (PCB to disk), but that doesn't > seem to happen that often. Still a possibility. >=20 >=20 >=20 >> In the beginning I disassembled the drives and connected them to my PC= >> to test, if the drives are broken. Nowadays I don't even test the >> drives, I directly return such USB enclosures. I even don't waste time= >> to test another USB port ;), let alone another computer. >=20 > In the past, I also solved "broken disk" issues by removing > them from the enclosure and attaching them to my trusted > JMicron universal adapter (for SATA, PATA, mini-PATA), using > the original power supply. So far, that worked on _every_ > computer's _every_ USB port. :-) >=20 >=20 >=20 --------------AD2FE9359721BD775256D476-- --RkbEU2ZNb8AMvpmSlZOPq5qeNCaFyuEgq-- --Z0zQdz23IwQW8m8UPJzg8M1m8ut8pwyXd Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iLUEARMKAB0WIQSb3Ikq38zYR4NRM5GjYkefPwrcBgUCX7mEzQAKCRCjYkefPwrc BtdgAf4ujkiDjCEvRKApScnbFDCKIuqPUfiwz56mFhbUMVqtKr0PTEIoP7szlYMB bXVWqbg1YgHx8sEuCnFZWAL56BlOAfwPUKcxkrYUkQDoNUN2WEA2y+xijQ7wCqn7 1qLwFzLw0XGrlJStTfAac/2l8tWxryvrw/KKcyTtBHo7vGSG3r21 =0jLA -----END PGP SIGNATURE----- --Z0zQdz23IwQW8m8UPJzg8M1m8ut8pwyXd--
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