Just delete the image directory (remove_me_8eb435f3-e8c1-4042-8180-e9f342b2e449) located under  /rhev/data-center/%spuuid%/%sduuid%/images/

As for the LV, please try the following:

dmsetup remove /dev/mapper/%device_name% --> device name could be fetched by 'dmsetup table'

On Wed, Jan 31, 2018 at 2:00 PM, Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:
On Wed, Jan 31, 2018 at 12:33 PM, Elad Ben Aharon <ebenahar@redhat.com> wrote:
You can correlate according to /rhev/data-center/%spuuid%/%sduuid%/images/
The image id you can take from:

# lvs -o name,tags |less -S

IU, under LV Tage, is the LV's image id, fir example:

  LV                                   LV Tags                                                                               
 13f5b7c1-ad93-41f3-96eb-147709640d1a IU_3646e381-d237-4940-a02d-90bb90b1d45a,MD_5,PU_00000000-0000-0000-0000-000000000000

On Tue, Jan 30, 2018 at 5:58 PM, Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:
On Tue, Jan 30, 2018 at 4:51 PM, Elad Ben Aharon <ebenahar@redhat.com> wrote:
Please try:

vdsClient -s 0 teardownImage <spUUID> <sdUUID> <imgUUID>


How do I map spUUID, sdUUID and imgUUID ? 



OK, thanks.
In my case even after detaching and removing the original SD and putting the target SD (now the only attached to the DC) into maintenance, putting host into maintenance and rebooting the host, I still get these old LVs with flags ao (san visibility to the old source sd is still here... I'm going to remove when cleaned up..).

Could it depend on the fact that there was another host in the DC that I put into maintenance and then powered off (because at the moment only one host was able to see the target SD where I moved all the disks)?
So a sort of retained lock?

Anyway after restarting this host and activating it with also 2 running VMS I have this kind of LV situation related to disks.
Note that I also included vg_name and you can see 3 VGs

be0c72ca-2dbc-4e02-ab48-5491ea0c01b7 and  f7b481c8-b744-43d4-9faa-0e494a308490 are two VGs on source old storage domains from where I moved disks

c0097b1a-a387-4ffa-a62b-f9e6972197ef is VG on target new storage domain where I moved the disks

#  lvs -o vg_name,name,tags 

   be0c72ca-2dbc-4e02-ab48-5491ea0c01b7 9094cc5a-a05c-47e0-8ad9-0fef274ea97b IU__remove_me_eb553b69-fafb-40de-9892-66b9f2826fd3,MD_6,PU_00000000-0000-0000-0000-000000000000 
  be0c72ca-2dbc-4e02-ab48-5491ea0c01b7 c1250065-e137-46da-9c11-38b095ff93a7 IU__remove_me_de47a038-28f9-4131-9650-042f73088c46,MD_7,PU_00000000-0000-0000-0000-000000000000 
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 014ce954-d645-43f6-823a-73112b80f5ae IU_72fb2b45-e1b3-4ea3-a95d-c19aa4b5aad4,MD_20,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 09bdad3f-eae1-4449-bb6e-3c3f85e690e9 IU_7e97309c-5aad-468c-81fc-e2179e4dea3a,MD_6,PU_00000000-0000-0000-0000-000000000000            
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 0afa6f2e-e4eb-481a-955c-4569e8eb737a IU_4721b70f-7146-490f-b351-c4fbff05f62e,MD_7,PU_00000000-0000-0000-0000-000000000000            
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 45e20ac8-f3c6-462b-a2c3-30f0c8262f84 IU_a50a9024-e951-4755-9a71-c47b93f99d58,MD_5,PU_00000000-0000-0000-0000-000000000000            
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 4d27c0e1-546b-48ba-80fb-95dcd87b5583 IU_3f949bfa-749b-4201-aa94-13bbad45132a,MD_17,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 6d23ec3e-79fb-47f0-85ff-08480476ea68 IU_8eb435f3-e8c1-4042-8180-e9f342b2e449,MD_9,PU_00000000-0000-0000-0000-000000000000            
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 75aacb1d-5ce5-4b72-b481-646abfa7a652 IU_190135c5-710d-4ca4-9e0c-cf19e7ca0f8b,MD_11,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 7f695bba-eba1-4ec2-ad24-3a0a5f03ea2d IU_2aef413b-b2d1-4a7c-8fbb-df81c93050ea,MD_19,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 8b48d5bb-a643-4c2b-9979-1a1be532ae71 IU_d258a707-0bb6-47d4-88b7-e0bf01b59f78,MD_16,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef 9094cc5a-a05c-47e0-8ad9-0fef274ea97b IU_eb553b69-fafb-40de-9892-66b9f2826fd3,MD_14,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef a1ebb202-458a-4c3a-8020-adbd432cdc75 IU_bc0de77d-796b-4c8d-94b3-0829110a542f,MD_12,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef a20bb16e-7c7c-4ed4-85c0-cbf297048a8e IU_6d8d41d5-2502-4392-8d4a-cca07581ec1e,MD_8,PU_00000000-0000-0000-0000-000000000000            
  c0097b1a-a387-4ffa-a62b-f9e6972197ef a2d5f043-55c2-4701-ac8c-ccb796a799d1 IU_c4cb42d2-c2ae-4336-8905-f743576869bc,MD_10,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef acb04c1e-488e-469f-9905-21540dfe4361 IU_48ca28fb-9c08-44ff-8599-7ba767a96b32,MD_13,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef c1250065-e137-46da-9c11-38b095ff93a7 IU_de47a038-28f9-4131-9650-042f73088c46,MD_15,PU_00000000-0000-0000-0000-000000000000           
  c0097b1a-a387-4ffa-a62b-f9e6972197ef e26eac74-4445-4f3b-b2f5-ef048ae6d91b IU_fe80f8f0-17d7-43b5-beb6-68983d9fd66c,MD_4,PU_00000000-0000-0000-0000-000000000000       f7b481c8-b744-43d4-9faa-0e494a308490 45e20ac8-f3c6-462b-a2c3-30f0c8262f84 IU__remove_me_a50a9024-e951-4755-9a71-c47b93f99d58,MD_13,PU_00000000-0000-0000-0000-000000000000
  f7b481c8-b744-43d4-9faa-0e494a308490 4d27c0e1-546b-48ba-80fb-95dcd87b5583 IU__remove_me_3f949bfa-749b-4201-aa94-13bbad45132a,MD_16,PU_00000000-0000-0000-0000-000000000000
  f7b481c8-b744-43d4-9faa-0e494a308490 675d5f06-320a-4236-8d57-9ff7cc7eb200 IU_23f37083-2282-41df-a01f-3e79949a758e,MD_7,PU_00000000-0000-0000-0000-000000000000            
  f7b481c8-b744-43d4-9faa-0e494a308490 6d23ec3e-79fb-47f0-85ff-08480476ea68 IU__remove_me_8eb435f3-e8c1-4042-8180-e9f342b2e449,MD_14,PU_00000000-0000-0000-0000-000000000000
  f7b481c8-b744-43d4-9faa-0e494a308490 823a79f2-b09a-4665-9dfa-8ccd2850225f IU_b71340d7-1e9e-45a4-a531-95963cb34b26,MD_6,PU_00000000-0000-0000-0000-000000000000            
  f7b481c8-b744-43d4-9faa-0e494a308490 863062c3-b3b0-4494-ad2f-76a1c29c069a IU_c57ef2e7-f34a-4788-b354-8d77ff57fb22,MD_5,PU_00000000-0000-0000-0000-000000000000            
  f7b481c8-b744-43d4-9faa-0e494a308490 a2d5f043-55c2-4701-ac8c-ccb796a799d1 IU__remove_me_c4cb42d2-c2ae-4336-8905-f743576869bc,MD_15,PU_00000000-0000-0000-0000-000000000000
  f7b481c8-b744-43d4-9faa-0e494a308490 e26eac74-4445-4f3b-b2f5-ef048ae6d91b IU__remove_me_fe80f8f0-17d7-43b5-beb6-68983d9fd66c,MD_12,PU_00000000-0000-0000-0000-000000000000


So there are on the two old VGs some "remove_me" tagged LVs... that I think corresponds to the erorrs I got during move disk operations

And if I take as reference the 6d23ec3e-79fb-47f0-85ff-08480476ea68 related LV, I get these two entries

c0097b1a-a387-4ffa-a62b-f9e6972197ef 6d23ec3e-79fb-47f0-85ff-08480476ea68 IU_8eb435f3-e8c1-4042-8180-e9f342b2e449,MD_9,PU_00000000-0000-0000-0000-000000000000            
f7b481c8-b744-43d4-9faa-0e494a308490 6d23ec3e-79fb-47f0-85ff-08480476ea68 IU__remove_me_8eb435f3-e8c1-4042-8180-e9f342b2e449,MD_14,PU_00000000-0000-0000-0000-000000000000

Of course the one with "remove_me" inside tag is what I have to remove... because it is on old source SD that now has been detached/removed.

what should it be the imgUUID value to give to vdsClient? Do I have to include IU prefix or what?

The first part of the command should be 

vdsClient -s 0 teardownImage 55c7e1ee-7246-4574-ba46-28d4582ba0e8 f7b481c8-b744-43d4-9faa-0e494a308490  ..... 

Thanks again.
Gianluca