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Date:      Sun, 12 Apr 2020 19:13:14 +0200
From:      Stefan Bethke <stb@lassitu.de>
To:        Ian Lepore <ian@FreeBSD.org>
Cc:        freebsd-stable <freebsd-stable@freebsd.org>
Subject:   Re: make kernel ignore broken SATA disk
Message-ID:  <A180AFDB-8C97-4627-ACEF-FF1232D9F69A@lassitu.de>
In-Reply-To: <36793c9efb905968508e94690b59d926f30af36b.camel@freebsd.org>
References:  <A33629CA-63EC-45AA-AB06-09B003BBB0A6@lassitu.de> <36793c9efb905968508e94690b59d926f30af36b.camel@freebsd.org>

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Am 12.04.2020 um 18:53 schrieb Ian Lepore <ian@FreeBSD.org>:
>=20
> On Sun, 2020-04-12 at 16:37 +0200, Stefan Bethke wrote:
>> I have a server I don't have physical access to right now, which has
>> a broken SATA disk that produces mostly errors (but not entirely).
>>=20
>> The disk has two partitions that are part of a zpool each. I can't
>> bring the system up with this disk being online, because ZFS is
>> trying its darndest to use it.
>>=20
>> I already renamed the GPT partitions in the hope that ZFS would not
>> find them anymore, but it does.
>>=20
>> I can't gpart destroy -f ada1 because "device busy".
>>=20
>> Is there a way, ideally in the loader, to tell the kernel to ignore
>> ada1 and/or ahcich5? Or can I force ZFS some other way to ignore the
>> disk? I do have a spare disk I can use to replace the failed one, but
>> I can't get the machine into a state where I could even issue the
>> zpool replace command.
>=20
> The the loader prompt (or in loader.conf without 'set'):
>=20
> set hint.ada.1.disabled=3D1

Doesn't seem to have any effect. ada1 still probed, and still prints =
error messages to the console.


Stefan

--
Stefan Bethke <stb@lassitu.de>   Fon +49 151 14070811


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