Re: unable to recover RAID 5 due to bad block

[Chris Purves <chris@northfolk.ca>]

On 2011-11-10 12:50, Robin Hill wrote:
> On Thu Nov 10, 2011 at 05:20:03PM +0100, Alexander Kühn wrote:
>
>> ddrescue to the rescue!
>> Get a another new disk, then ddrescue the one with the read error to
>> the new disk.
>> Assemble the array using the new disk instead of the one with the read error.
>> You will loose the blocks that can't be read of course.
>> And in the future do run raid check/scrubbing at regular intervals. ;)
>> Alex.
>>
> You may be better cloning the original failed disk - that way it will
> have a chance of actually recovering the read error (rather than having
> to lose the blocks). It depends on why/how/when the original disk failed
> though.
>
> Cheers,
>      Robin

The original failed disk can't be recognized by the controller.  I tried to read the disk on another machine with no luck.  It appears to be completely dead.

-- 
Chris Purves
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