Re: [Xen-users] Error with clvm

[Guy Roussin <guy.roussin@xxxxxxxxxxxxxxxx>]

Hi,

This is a multipath lvm, so i use "testdisk /dev/mapper/vms" to try to 
recover it.
There is no partitionning on the disk only one big lvm2.
I can see this big lvm with Testdisk (structure correct). I can't record 
partitionning because there is no partitionning on this disk.
So i think there is no problem with the data. But there is something 
somewhere that prevent me to access to the lvm2 (cluster metadata?) ...
But now, what can i do now to access all the logicals volumes i create 
on this big lvm ?
Thank you James,

Guy


James Troup a Ãcrit :
> If you get really desparate and don't mind sorting throught the wreckage.
> testdisk might be your friend.
>
> Download here: http://www.cgsecurity.org/wiki/TestDisk_Download
>
> Howto use here: 
> http://itknowledgeexchange.techtarget.com/linux-lotus-domino/recovering-files-from-an-lvm-or-ext3-partition-with-testdisk/
> ----- Original Message -----
> From: "Guy Roussin" <guy.roussin@xxxxxxxxxxxxxxxx>
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Sent: Tuesday, 9 March, 2010 2:02:12 AM
> Subject: Re: [Xen-users] Error with clvm
>
> Hi again,
>
> Do you think it's possible to restore some data from my VG.
> I can't access it anymore. When i boot the host, it's stuck on
> the error which i have describe.
>
> If i move the volume on a another dom0, i can't access with lvm
> because this is a clustered VG.
> Is it possible to downgrade to a non cluster LVM, (remove cluster
> metadata) without loosing data ?
>
> Thank you.
>
> Guy
>
>
> > Hi,
> >
> > I get this error when i try to start clvm (debian lenny) :
> > This is a clvm version with openais
> >
> > # /etc/init.d/clvm restart
> > Deactivating VG ::.
> > Stopping Cluster LVM Daemon: clvm.
> > Starting Cluster LVM Daemon: clvmCLVMD[86475770]: Mar  8 11:25:27
> > CLVMD started
> > CLVMD[86475770]: Mar  8 11:25:27 Our local node id is -1062730132
> > CLVMD[86475770]: Mar  8 11:25:27 Add_internal_client, fd = 7
> > CLVMD[86475770]: Mar  8 11:25:27 Connected to OpenAIS
> > CLVMD[86475770]: Mar  8 11:25:27 Cluster ready, doing some more
> > initialisation
> > CLVMD[86475770]: Mar  8 11:25:27 starting LVM thread
> > CLVMD[86475770]: Mar  8 11:25:27 clvmd ready for work
> > CLVMD[40800950]: Mar  8 11:25:27 LVM thread function started
> > CLVMD[86475770]: Mar  8 11:25:27 Using timeout of 60 seconds
> > CLVMD[86475770]: Mar  8 11:25:27 confchg callback. 1 joined, 0 left, 1
> > members
> > File descriptor 4 left open
> > File descriptor 5 left open
> > File descriptor 6 left open
> >  WARNING: Locking disabled. Be careful! This could corrupt your 
> metadata.
> > CLVMD[40800950]: Mar  8 11:25:43 LVM thread waiting for work
> >
> > I need to CTRL-C
> >
> > How can i fix this error. Thank you.
> >
>
>
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--
Guy Roussin

UMR TETIS "Territoires, Environnement, Teledetection et Information  Spatiale" 

Maison de la TÃlÃdÃtection en Languedoc Roussillon
500, rue J.F. Breton
34093 MONTPELLIER Cedex 5

tÃl: 04.67.54.87.46 fax: 04.67.54.87.00
mailto:guy.roussin@xxxxxxxxxxxxxxxx


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