md RAID and LVM recovery techniques.

[Robin Laing]

Robin Laing wrote:
> Hello,
> 
> I know how to recover a single md drive but I am not sure how this works 
> under LVM.
> 
> My situation is two drives for md0 (~130gig) and two for md1.  This on 
> FC4 so shouldn't make that much difference.
> 
> Joined together under LVM.  One of the md0 drives failed on the weekend 
> and I want to ensure that I do this correctly.
> 
> As the drive comes up with no file-system error, I want to pull the 
> drive out and test it in an external carrier and possibly map out bad 
> blocks.
> 
> The other option is to replace the drive with a much larger drive (price 
> is lower) and partition the as a replacement.
> 
> Can I just rebuild the drive under md tools and it will work in the LVM 
> or do I have to re-label the drive?
> 
> If I pull the drive and put it in a carrier, will I be able to pull data 
> off of the drive?
> 
> Basically, can I just ignore the LVM on this drive?
> 
> 

Well no help from the list as of yet but I did finally find this which 
may be useful to others.

http://www.linuxjournal.com/article/8874


-- 
Robin Laing