Re: Suggestion needed for fixing RAID6

[Michael Evans <mjevans1983@gmail.com>]

On Mon, Apr 26, 2010 at 4:29 PM, Janos Haar <janos.haar@netcenter.hu> wrote:
>
> ----- Original Message ----- From: "Michael Evans" <mjevans1983@gmail.com>
> To: "Janos Haar" <janos.haar@netcenter.hu>
> Cc: "MRK" <mrk@shiftmail.org>; <linux-raid@vger.kernel.org>
> Sent: Tuesday, April 27, 2010 1:06 AM
> Subject: Re: Suggestion needed for fixing RAID6
>
>
>> On Mon, Apr 26, 2010 at 3:39 PM, Janos Haar <janos.haar@netcenter.hu>
>> wrote:
>>>
>>> ----- Original Message ----- From: "MRK" <mrk@shiftmail.org>
>>> To: "Janos Haar" <janos.haar@netcenter.hu>
>>> Cc: <linux-raid@vger.kernel.org>
>>> Sent: Monday, April 26, 2010 6:53 PM
>>> Subject: Re: Suggestion needed for fixing RAID6
>>>
>>>
>>>> On 04/26/2010 02:52 PM, Janos Haar wrote:
>>>>>
>>>>> Oops, you are right!
>>>>> It was my mistake.
>>>>> Sorry, i will try it again, to support 2 drives with dm-cow.
>>>>> I will try it.
>>>>
>>>> Great! post here the results... the dmesg in particular.
>>>> The dmesg should contain multiple lines like this "raid5:md3: read error
>>>> corrected ....."
>>>> then you know it worked.
>>>
>>> md3 : active raid6 sdd4[12] sdl4[11] sdk4[10] sdj4[9] sdi4[8] dm-1[13](F)
>>> sdg4[6] sdf4[5] dm-0[14](F) sdc4[2] sdb4[1] sda4[0]
>>> 14626538880 blocks level 6, 16k chunk, algorithm 2 [12/9] [UUU__UU_UUUU]
>>> [>....................] recovery = 1.5% (22903832/1462653888)
>>> finish=3188383.4min speed=7K/sec
>>>
>>> Khm.... :-D
>>> It is working on something or stopped with 3 missing drive? : ^ )
>>>
>>> (I have found the cause of the 2 dm's failure.
>>> Now retry runs...)
>>>
>>> Cheers,
>>> Janos
>>>
>>>
>>>
>>>
>>>> --
>>>> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
>>>> the body of a message to majordomo@vger.kernel.org
>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>
>>
>> What is displayed there seems like it can't be correct.  Please run
>>
>> mdadm -Evvs
>>
>> mdadm -Dvvs
>>
>> and provide the results for us.
>
> I have wrongly assigned the dm devices (cross-linked) and the sync process
> is freezed.
> The snapshot is grown to the maximum of space, than both failed with write
> error at the same time with out of space.
> The md_sync process is freezed.
> (I have to push the reset.)
>
> I think this is correct what we can see, because the process is freezed
> before exit and can't change the state to failed.
>
> Cheers,
> Janos
>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>

Please reply to all.

It sounds like you need a LOT more space.  Please carefully try again.
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html