Neil Brown wrote:
> On Wednesday April 19, k_schricker@xxxxxxx wrote:
>
>> I have a raid5 configuration with 4 disks, of which all were active. My
>> system froze due to a separate issue (firewire), so I had to power cycle.
>> In the past, I've always been able to recover with fsck on /dev/md0, however
>> this time I was not, and I am unable to re-assemble the array now.
>>
>> I'm really hoping someone can help me with this. I've been googling and
>> reading the mdadm manpage for 3 days and getting nowhere.
>>
>> After booting, I get 3 active disks and one faulty. Theoretically with
>> raid5 I should be able to recover from this, right? :) When I add it back
>> to the array, it changes to "spare rebuilding". However it lies: no Rebuild
>> Status ever shows up (and I let it run overnight).
>>
>
> Hmmm... there is certainly room for removing confusion from that
> "mdadm -D" is reporting. However what you want to do it:
>
> mdadm -S /dev/md0
> mdadm -A /dev/md0 --force /dev/sd[abd]
> mdadm /dev/md0 --add /dev/sdv
>
Typo: this last line should be:
mdadm /dev/md0 --add /dev/sdc
^
David
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