You need to add a line to /etc/lvm/lvm.conf: types = [ "rbd", 1024 ] It should be in the "devices" section of the file. On Tue, Sep 24, 2013 at 5:00 PM, John-Paul Robinson <jpr@xxxxxxx> wrote: > Hi, > > I'm exploring a configuration with multiple Ceph block devices used with > LVM. The goal is to provide a way to grow and shrink my file systems > while they are on line. > > I've created three block devices: > > $ sudo ./ceph-ls | grep home > jpr-home-lvm-p01: 102400 MB > jpr-home-lvm-p02: 102400 MB > jpr-home-lvm-p03: 102400 MB > > And have them mapped into my kernel (3.2.0-23-generic #36-Ubuntu SMP): > > $ sudo rbd showmapped > id pool image snap device > 0 rbd jpr-test-vol01 - /dev/rbd0 > 1 rbd jpr-home-lvm-p01 - /dev/rbd1 > 2 rbd jpr-home-lvm-p02 - /dev/rbd2 > 3 rbd jpr-home-lvm-p03 - /dev/rbd3 > > In order to use them with LVM, I need to define them as physical > volumes. But when I run this command I get an unexpected error: > > $ sudo pvcreate /dev/rbd1 > Device /dev/rbd1 not found (or ignored by filtering). > > I am able to use other RBD on this same machine to create file systems > directly and mount them: > > $ df -h /mnt-test > Filesystem Size Used Avail Use% Mounted on > /dev/rbd0 50G 885M 47G 2% /mnt-test > > Is there a reason that the /dev/rbd[1-2] devices can't be initialized as > physical volumes in LVM? > > Thanks, > > ~jpr > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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