pvdisplay

  Couldn't find device with uuid j6jm0i-kub9-EtC8-r4pL-33UA-uV1r-FAn5Jf.
  Couldn't find device with uuid LNzDKm-Dhzt-SbpB-pb33-bNuv-aQgn-xchekJ.
  --- Physical volume ---
  PV Name               unknown device
  VG Name               VG_XenStorage-ac912710-96f9-2cbc-9b93-e429e9036a0b
  PV Size               923.51 GB / not usable 7.43 MB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              236416
  Free PE               3
  Allocated PE          236413
  PV UUID               j6jm0i-kub9-EtC8-r4pL-33UA-uV1r-FAn5Jf

  --- Physical volume ---
  PV Name               /dev/sdb
  VG Name               VG_XenStorage-ac912710-96f9-2cbc-9b93-e429e9036a0b
  PV Size               931.51 GB / not usable 6.41 MB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              238464
  Free PE               36784
  Allocated PE          201680
  PV UUID               U3pxe2-cXQr-kVz2-S40C-LrRz-Q2Zv-7rrbU0

  --- Physical volume ---
  PV Name               unknown device
  VG Name               VG_XenStorage-ac912710-96f9-2cbc-9b93-e429e9036a0b
  PV Size               923.51 GB / not usable 7.43 MB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              236416
  Free PE               3
  Allocated PE          236413
  PV UUID               j6jm0i-kub9-EtC8-r4pL-33UA-uV1r-FAn5Jf