[linux-lvm] recover problem from hard disk failure

[linux-lvm] recover problem from hard disk failure

[HYUN-CHUL KIM]

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Hi, all

One among three hard disks constituting a LVM logical volume has failed.
How to recover data from the other two hard disks?

Sincerely,

Hyun-Chul Kim

Computational Cell Biology Laboratory
Department of Biosystems
Korea Advanced Institute of Science and Technology
Yusung-Gu, Taejon 305-333
Republic of Korea

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Re: [linux-lvm] recover problem from hard disk failure

[Denie Andriessen]

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It is not possible !

Only option you *might* have, is to do a dd_rescue from the failing disk on to a new disk (I used same make/model), only works if the old disk sometimes still has a little life in it.. 

http://freshmeat.net/projects/ddrescue/

I used it once, took a LONG time, stopping and starting it, but recovered over 90% in the end
Patience, having a rubber hammer at hand, hitting it from time to time...

Else: restore from backup !
(You DO have a backup, right ?)

Denie
  ----- Original Message ----- 
  From: HYUN-CHUL KIM 
  To: linux-lvm@redhat.com 
  Sent: Tuesday, June 21, 2005 4:29 PM
  Subject: [linux-lvm] recover problem from hard disk failure


  Hi, all

  One among three hard disks constituting a LVM logical volume has failed.
  How to recover data from the other two hard disks?

  Sincerely,

  Hyun-Chul Kim

  Computational Cell Biology Laboratory
  Department of Biosystems
  Korea Advanced Institute of Science and Technology
  Yusung-Gu, Taejon 305-333
  Republic of Korea

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Re: [linux-lvm] recover problem from hard disk failure

[Sean Boyd]

On Tue, 2005-06-21 at 23:29 +0900, HYUN-CHUL KIM wrote:
> Hi, all
>  
> One among three hard disks constituting a LVM logical volume has
> failed.
> How to recover data from the other two hard disks?

 I was trolling through the lvm commands and man pages and found a
section "REPLACING PHYSICAL VOLUMES" in the vgcfgrestore man page.

Check it out. If you try it let us know how you go.

--Sean