Thanks. After fixing the issue with the types entry in lvm.conf, I discovered the -vvv option which helped me detect a the second cause for the "ignored" error: pvcreate saw a partition signature and skipped the device. The -vvv is s good flag. :) ~jpr On 09/25/2013 01:52 AM, Wido den Hollander wrote: > Try this: > > $ sudo pvcreate -vvv /dev/rbd1 > > It has something to do with LVM filtering RBD devices away, you might > need to add them manually in /etc/lvm/lvm.conf > > I've seen this before and fixed it, but I forgot what the root cause was. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com