From: "Jérôme Carretero" <cJ-ko@zougloub.eu>
To: unlisted-recipients:; (no To-header on input)
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Issues while doing btrfs delete missing in raid6
Date: Mon, 20 Nov 2017 01:54:50 -0500 [thread overview]
Message-ID: <20171120015450.03b6beea@Vantage.cJ> (raw)
In-Reply-To: <20171120014344.7a5d8bd2@Vantage.cJ>
On Mon, 20 Nov 2017 01:43:44 -0500
Jérôme Carretero <cJ-ko@zougloub.eu> wrote:
> Hi,
>
>
> While doing a test (to evaluate drives), where I'm filling a bunch of
> drives in RAID6, one of the disks failed in the process.
> (System with v4.14 / ECC).
> I remounted the array in degraded, launched a "btrfs delete missing"
> as I have no replacement device.
>
> The command (takes ages and) fails with:
> ERROR: error removing device 'missing': Input/output error
> Since this is RAID6, I wasn't expecting to not be able to recover
> from a checksum issue, also it's not very practical to bail out on
> the first error of this kind during a delete... the offending blocks
> could be left as is.
While doing a "tar c /mnt/test | pv >/dev/null" I see the csum errors,
but they are corrected then.
I guess I'll try to scrub and see. But there's probably a bug, if
delete/replace/balance can't do that.
Regards,
--
Jérôme
next prev parent reply other threads:[~2017-11-20 6:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-20 6:43 Issues while doing btrfs delete missing in raid6 Jérôme Carretero
2017-11-20 6:54 ` Jérôme Carretero [this message]
2017-11-20 7:13 ` Qu Wenruo
2017-11-20 21:57 ` Duncan
2017-11-21 1:06 ` Jérôme Carretero
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