md RAID and LVM recovery techniques.

[Dennis Castanos]

I.have good luck with 'ghost for linux' for single non raid drive.  I was wondering if the slave drive (RAID) had to be restored along with the primary, when wanting to restore to an erlier backup for whatever reason.
dennismouille at yahoo.com

Robin Laing <Robin.Laing at drdc-rddc.gc.ca> wrote: 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

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