On 04.Dez.2013, at 15:08, Nux! wrote: > On 04.12.2013 13:43, Markus Falb wrote: >> >> What does this "Found duplicate PV b79x0kLXR9mAC0z0IZUxyJG1VC24Crl7: >> using /dev/sda2 not /dev/md1" message? >> Some logical volumes are virtual disks vor kvm guests. Are these >> guests using sda only and not the mdraid? > > Markus, > > I see /etc/lvm/lvm.conf has an option to ignore md members and seems on > by default in EL6: > md_component_detection = 1 > > If you run "pvdisplay /dev/sda2" what does it show? Normally you should > get a "Failed to read physical volume "/dev/sda2". > > Do you have such thing in your /etc/lvm/lvm.conf? ADditionally you can > force a filter on the drives, smth like: > filter = ["r|/dev/sda2"] > (make sure you delete /etc/lvm/cache/.cache and regenerate it with > vgscan so as not to contain old stuff) I removed the cache and that did the trick. I did not modify lvm.conf. -- Markus