On Tue, January 17, 2012 16:01, Dennis Jacobfeuerborn wrote:
On 01/17/2012 06:46 PM, James B. Byrne wrote:
On Mon, January 16, 2012 17:01, Dennis Jacobfeuerborn wrote:
On 01/16/2012 10:16 PM, James B. Byrne wrote:
...
The xmldump for this guest instance contains this:
...
Please post the xmldumps of the original guest and cloned guest right after cloning and without any modifications.
Regards, Dennis
Prototype dumpxml
virsh # dumpxml vm-centos-6
<domain type='kvm' id='34'>
...
<source dev='/dev/vg_vhost01/lv_vm_base'/></domain>
virsh # dumpxml sshpipe.harte-lyne.ca
<domain type='kvm' id='19'>
...
<sourcedev='/dev/vg_vhost01/lv_vm_sshipe.harte-lyne.ca_00'/>
</domain>
The second guest, sshpipe, shows this for pvdisplay:
[root@sshpipe ~]# pvdisplay Couldn't find device with uuid umrIn6-Np0c-NC4Z-MuUo-5TBj-IKRE-XBU0De. --- Physical volume --- PV Name /dev/vda2 VG Name vg_vm_centos_6 PV Size 7.32 GiB / not usable 3.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 1874 Free PE 0 Allocated PE 1874 PV UUID djM23m-6Yeb-BQ2x-gPh9-ORMt-dX2i-Ou9xBQ
--- Physical volume --- PV Name unknown device VG Name vg_vm_centos_6 PV Size 31.25 GiB / not usable 3.97 MiB Allocatable yes PE Size 4.00 MiB Total PE 7999 Free PE 1855 Allocated PE 6144 PV UUID umrIn6-Np0c-NC4Z-MuUo-5TBj-IKRE-XBU0De
What does the first guest say for pvdisplay? The key here is the PV UUID "umrIn6-Np0c...". Either this PV must exists somewhere else on the host or in one of the guest or maybe the cloning process has corrupted the LVM metadata.
I finally found the time to check for this UUID on the kvm host and I find it referenced in these files:
/etc/lvm/archive/vg_vm_centos_6_00003-2133754855.vg: id = "umrIn6-Np0c-NC4Z-MuUo-5TBj-IKRE-XBU0De" /etc/lvm/archive/vg_vm_centos_6_00002-2048459897.vg: id = "umrIn6-Np0c-NC4Z-MuUo-5TBj-IKRE-XBU0De" /etc/lvm/archive/vg_vm_centos_6_00004-568234656.vg: id = "umrIn6-Np0c-NC4Z-MuUo-5TBj-IKRE-XBU0De" /etc/lvm/backup/vg_vm_centos_6: id = "umrIn6-Np0c-NC4Z-MuUo-5TBj-IKRE-XBU0De"
Now, by my way of thinking, as vg_vm_centos_6 is the volume group originally assigned to the prototype guests when it was created from the install dvd then it should not exist in the vhost01 file system at all. Am I correct?
I cannot see any other vgs for guests that were created by a dvd style install.
I have shutdown the affected guests and have installed new guests with different names from dvd media to take over the functions of those guests exhibiting the disk/lv cross linkage problem.
What would happen if I simply deleted the files containing vg_vm-centos_6 in their name from the kvm host? These exist only in /etc/lvm/archive and /etc/lvm/backup.