Re: Suggestion needed for fixing RAID6

["Janos Haar" <janos.haar@netcenter.hu>]

----- 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




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