On futher-further testing..it appears that a "vgscan -vvvvvvvvvvvvvv" does not update the lvm cache like it used too before RHEL 5.5. vgdisplay apparently uses the device list in the /etc/lvm/cache/.cache file. If you make a change to your filter line in the lvm.conf, it won't take affect until you manually "rm /etc/lvm/cache/.cache", then run vgscan, and then the "Found duplicate PV" messages will be gone. _______________________________________________ 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/