[linux-lvm] How to remove crashed inaccessible harddrive from LVM2.

[linux-lvm] How to remove crashed inaccessible harddrive from LVM2.

[Damir Hasakovic]

Hi everyone,

I have a big big issue with my LVM2 system. Im running Debian 3.1 with
6 harddrives and no RAID. Last drive that i added have now crashed.
When i boot the machine, during the bootproecess fsck starts to check
LVM and after 50 % terminal gets filled with I/O error. I have tracked
down wich HDD is the crashed one.

The problem is i cant't type anything in terminal because it spits I/O
error every 5 secs. What i can do is to connect via SSH and than i can
navigate through the system but as soon i type for example "lvdisplay"
or anything that have to do with LVM the SSH session hangs.

Im very desperate to get this system upp and running.

Other drives are full and working. Is there any way to just remove the
last hardrive. I don't care about the information that is on the last
driver because it's just couple of movies and some pics.

Please help if u can :)


Thanx in advanced

Kind regards

//damir

Re: [linux-lvm] How to remove crashed inaccessible harddrive from LVM2.

[Bryn M. Reeves]

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Damir Hasakovic wrote:
> Hi everyone,
> 
> I have a big big issue with my LVM2 system. Im running Debian 3.1 with
> 6 harddrives and no RAID. Last drive that i added have now crashed.
> When i boot the machine, during the bootproecess fsck starts to check
> LVM and after 50 % terminal gets filled with I/O error. I have tracked
> down wich HDD is the crashed one.
> 
> The problem is i cant't type anything in terminal because it spits I/O
> error every 5 secs. What i can do is to connect via SSH and than i can
> navigate through the system but as soon i type for example "lvdisplay"
> or anything that have to do with LVM the SSH session hangs.
> 
> Im very desperate to get this system upp and running.
> 
> Other drives are full and working. Is there any way to just remove the
> last hardrive. I don't care about the information that is on the last
> driver because it's just couple of movies and some pics.
> 
> Please help if u can :)
> 

LVM2 allows you to activate partial volume groups and to remove missing
physical volumes via the --partial and --removemissing options to
vgchange and vgreduce. See the manual pages for full details.

It sounds like your failed drive has not 'gone away' but is throwing I/O
errors for some sectors and maybe causing system hangs. You might be
better off disconnecting it and booting the system into a rescue
environment to perform the recovery of the volume group since it does
not contain important data you want to recover.

Kind regards,
Bryn.

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Re: [linux-lvm] How to remove crashed inaccessible harddrive from LVM2.

[Damir Hasakovic]

On 5/3/07, Bryn M. Reeves <breeves@redhat.com> wrote:

>
> LVM2 allows you to activate partial volume groups and to remove missing
> physical volumes via the --partial and --removemissing options to
> vgchange and vgreduce. See the manual pages for full details.
>
> It sounds like your failed drive has not 'gone away' but is throwing I/O
> errors for some sectors and maybe causing system hangs. You might be
> better off disconnecting it and booting the system into a rescue
> environment to perform the recovery of the volume group since it does
> not contain important data you want to recover.
>
> Kind regards,
> Bryn.
>
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> iD8DBQFGOdVv6YSQoMYUY94RAkmJAJ9V2faGbFKgpH5CIHLDrzFJL7lazgCfcpfm
> nz6q3j33RKyQuNKzWgPRAC0=
> =OAqy
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>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
Do u mean rescue env like booting with the rescue cd?

I tried to do like u said but when i disconnect the drive, some other
device take /dev/sdc from the failed drive but LVM complains that UID
is missing and when i check /etc/backup/VG i can see the missing UID
and that is the drive that have failed /dev/sdc

Now i'm afraird to remove the /dev/sdc from the volume group beacuse
some other drive took over /dev/sdc.

Can u please provide some useful commands that i can begin with?

Kind regards
//damir