Description of problem:


# RAID
[root@host-123 ~]# lvcreate -m 1 --type raid1 -L 100M test
  Logical volume "lvol0" created.
[root@host-123 ~]# lvs -a -o +devices
  LV               VG    Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Devices                            
  lvol0            test  rwi-a-r--- 100.00m                                    100.00   lvol0_rimage_0(0),lvol0_rimage_1(0)
  [lvol0_rimage_0] test  iwi-aor--- 100.00m                                             /dev/sda1(1)                       
  [lvol0_rimage_1] test  iwi-aor--- 100.00m                                             /dev/sdb1(1)                       
  [lvol0_rmeta_0]  test  ewi-aor---   4.00m                                             /dev/sda1(0)                       
  [lvol0_rmeta_1]  test  ewi-aor---   4.00m                                             /dev/sdb1(0)                       

[root@host-123 ~]# lvconvert -m 0 --type raid1 test/lvol0 /dev/sdFAKE
  Physical Volume "/dev/sdFAKE" not found in Volume Group "test".
[root@host-123 ~]# lvconvert -m 0 --type mirror test/lvol0 /dev/sdFAKE
  Physical Volume "/dev/sdFAKE" not found in Volume Group "test".
[root@host-123 ~]# lvconvert -m 0 --type raid1 test/lvol0 /dev/sdc1
  Unable to extract enough images to satisfy request
  Failed to extract images from test/lvol0
[root@host-123 ~]# lvconvert -m 0 --type mirror test/lvol0 /dev/sdc1
  Unable to extract enough images to satisfy request
  Failed to extract images from test/lvol0



# MIRROR
[root@host-123 ~]# lvcreate -m 1 --type mirror -L 100M test
  Logical volume "lvol0" created.
[root@host-123 ~]# lvs -a -o +devices
  LV               VG    Attr       LSize   Pool Origin Data%  Meta%  Move Log          Cpy%Sync Devices                            
  lvol0            test  mwi-a-m--- 100.00m                                [lvol0_mlog] 100.00   lvol0_mimage_0(0),lvol0_mimage_1(0)
  [lvol0_mimage_0] test  iwi-aom--- 100.00m                                                      /dev/sda1(0)                       
  [lvol0_mimage_1] test  iwi-aom--- 100.00m                                                      /dev/sdb1(0)                       
  [lvol0_mlog]     test  lwi-aom---   4.00m                                                      /dev/sdh1(0)                       

[root@host-123 ~]# lvconvert -m 0 --type raid1 test/lvol0 /dev/sdFAKE
  Physical Volume "/dev/sdFAKE" not found in Volume Group "test".
[root@host-123 ~]# lvconvert -m 0 --type mirror test/lvol0 /dev/sdFAKE
  Physical Volume "/dev/sdFAKE" not found in Volume Group "test".

# shouldn't this also fail?
[root@host-123 ~]# lvconvert -m 0 --type raid1 test/lvol0 /dev/sdc1
  Logical volume test/lvol0 converted.



Version-Release number of selected component (if applicable):
3.10.0-480.el7.x86_64

lvm2-2.02.164-3.el7    BUILT: Wed Aug 24 05:20:41 CDT 2016
lvm2-libs-2.02.164-3.el7    BUILT: Wed Aug 24 05:20:41 CDT 2016
lvm2-cluster-2.02.164-3.el7    BUILT: Wed Aug 24 05:20:41 CDT 2016
device-mapper-1.02.133-3.el7    BUILT: Wed Aug 24 05:20:41 CDT 2016
device-mapper-libs-1.02.133-3.el7    BUILT: Wed Aug 24 05:20:41 CDT 2016
device-mapper-event-1.02.133-3.el7    BUILT: Wed Aug 24 05:20:41 CDT 2016
device-mapper-event-libs-1.02.133-3.el7    BUILT: Wed Aug 24 05:20:41 CDT 2016
device-mapper-persistent-data-0.6.3-1.el7    BUILT: Fri Jul 22 05:29:13 CDT 2016