Date: Sun, 12 Apr 2020 18:43:19 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Stefan Bethke <stb@lassitu.de> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: make kernel ignore broken SATA disk Message-ID: <20200412154319.GO8028@zxy.spb.ru> In-Reply-To: <A33629CA-63EC-45AA-AB06-09B003BBB0A6@lassitu.de> References: <A33629CA-63EC-45AA-AB06-09B003BBB0A6@lassitu.de>
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On Sun, Apr 12, 2020 at 04:37:06PM +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). > > 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. > > I already renamed the GPT partitions in the hope that ZFS would not find them anymore, but it does. > > I can't gpart destroy -f ada1 because "device busy". > > 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. `zpool offline pool device` if you have enoght redundancy?
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