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
 |