root@ceph-mon1:/var/lib/ceph/osd# vgscan
File descriptor 7 (pipe:[243547]) leaked on vgscan invocation. Parent PID 19729: bash
  Reading all physical volumes.  This may take a while...
  Found volume group "ceph-c840dbbc-1ae0-4973-8bd8-89f47a9f2d35" using metadata type lvm2
root@ceph-mon1:/var/lib/ceph/osd# vgs
File descriptor 7 (pipe:[243547]) leaked on vgs invocation. Parent PID 19729: bash
  VG                                        #PV #LV #SN Attr   VSize VFree
  ceph-c840dbbc-1ae0-4973-8bd8-89f47a9f2d35   1   1   0 wz--n- 8.00g    0