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Date:      Sat, 23 Jan 2010 07:43:35 -0500
From:      Rich <rincebrain@gmail.com>
To:        Andrew Snow <andrew@modulus.org>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: Errors on a file on a zpool: How to remove?
Message-ID:  <5da0588e1001230443r1fee3b45o906690bc0115bb4e@mail.gmail.com>
In-Reply-To: <4B5AE8D7.9000103@modulus.org>
References:  <5da0588e1001222223m773648am907267235bdcf882@mail.gmail.com> <ed91d4a81001230011t7aef2da8h3be13d2494c06550@mail.gmail.com> <5da0588e1001230014k1b8a32f8v42046497265429ed@mail.gmail.com> <4B5AE8D7.9000103@modulus.org>

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zpool clear always clears the checksum column whenever I run it.

Then, as soon as I touch those files again, or run a scrub, the
checksum error numbers tick up on those three disks, and those entries
appear in /var/log/messages.

- Rich

On Sat, Jan 23, 2010 at 7:17 AM, Andrew Snow <andrew@modulus.org> wrote:
> Rich wrote:
>>
>> Scrubbing repeatedly does nothing to remove the note about that error,
>> and I'd rather like to avoid trying to recreate a 7TB pool.
>
> If you have bad hardware, its quite possible for ZFS to get itself into a
> state that it cannot repair itself. =A0The claim about "never needs fsck"=
 only
> applies if the hardware is doing what is expected of it. This especially
> goes for a pool with zero redundancy, like yours.
>
> Its pretty good that ZFS can report the checksum failures where with othe=
r
> filesystems wouldn't even know something's wrong until it starts returnin=
g
> garbled data or crashes the whole kernel.
>
> I presume you have already tried "zpool clear" ?
>
> - Andrew
>
>



--=20

Life is a yo-yo, and mankind ties knots in the string.



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