Post the output of mdadm -E /dev/sdx1 and smart -a /dev/sdx for all disks.
Also, which version of mdadm are you using?
2010/1/2 Michał Sawicz <michal@xxxxxxxxxx>:
> Hi all,
>
> I have quite a big problem, I had a clean 4 disk RAID5 array, wanted to
> reshape it to 5 disks, building a degraded array (I know, I shouldn't
> have done that). One of the disks (sdh) failed and the array is
> currently broken:
>
>> md5 : active raid5 sdh1[1](S) sdf1[4](S) sdc1[3] sdg1[2]
>> 2930279424 blocks super 1.1 level 5, 256k chunk, algorithm 2 [4/2] [U_U_]
>
> sdh1 was initially marked F, it changed to S when I removed it and
> readded it to the array. The filesystem shut down instantly so no write
> operations were performed.
>
> What I can't understand is why sdf1 also got marked as a spare.
>
> Is there any way I can recover the data? SMART only reports 3 unreadable
> sectors, so most of the data should be recoverable... I will provide any
> additional information needed to get as much of the data back.
>
> --
> Regards
> Michał (Saviq) Sawicz
>
--
Majed B.
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