Re: [CentOS] Found duplicate PV

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)