Could be a filtering issue, in the logs do you see the output of getDeviceList?
Should be something like this:
FINISH getDeviceList return={'devList': [{ ... }]}

if you enable debug logs for vdsm[1], you should be able to see the command used to generate the list, something like this:
/usr/bin/taskset --cpu-list 0-1 /usr/bin/sudo -n /usr/sbin/lvm pvs --config 'devices {  preferred_names=["^/dev/mapper/"]  ignore_suspended_devices=1  write_cache_state=0  disable_after_error_count=3  filter=["a|^/dev/mapper/360014050fae4b6602954f7da281f543a$|^/dev/mapper/36001405139b21348e504199993e9dc34$|^/dev/mapper/360014055cecb9f9bf514613a8fc1b7cc$|^/dev/mapper/360014055fce35ea61ea4b4ea6fe3dfc8$|^/dev/mapper/36001405c8d08f719b9c425e8367dcb24$|", "r|.*|"] } global {  locking_type=1  prioritise_write_locks=1  wait_for_locks=1  use_lvmetad=0 } backup {  retain_min=50  retain_days=0 }' --noheadings --units b --nosuffix --separator '|' --ignoreskippedcluster -o uuid,name,size,vg_name,vg_uuid,pe_start,pe_count,pe_alloc_count,mda_count,dev_size,mda_used_count

[1] - https://www.ovirt.org/develop/developer-guide/vdsm/log-files.html

On Mon, Feb 11, 2019 at 12:19 PM Leo David <leoalex@gmail.com> wrote:
Hi,
I have identified some logs regarding the session:


2019-02-11 10:11:59,220+0000 INFO  (jsonrpc/1) [vdsm.api] START discoverSendTargets(con={'ipv6_enabled': False, 'connection': u'10.10.8.13', 'password': '', 'port': u'3260', 'user': ''}, options=None) from=::ffff:10.10.8.130,40100, flow_id=15c2479a-abb3-4aee-adb9-9e01169471c6, task_id=89bb32fd-463b-4b1a-80ff-7a829e0ce500 (api:46)
2019-02-11 10:11:59,693+0000 INFO  (jsonrpc/1) [vdsm.api] FINISH discoverSendTargets return={'fullTargets': ['10.10.6.13:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', '10.10.6.177:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', '10.10.9.1:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', '10.10.9.5:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', '10.10.8.13:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', '10.10.6.13:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', '10.10.6.177:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', '10.10.9.1:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', '10.10.9.5:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', '10.10.8.13:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', '10.10.6.13:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', '10.10.8.13:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', '10.10.6.177:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', '10.10.9.1:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', '10.10.9.5:3260,1 iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296'], 'targets': ['iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapsata.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.qnapssd.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', 'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296']} from=::ffff:10.10.8.130,40100, flow_id=15c2479a-abb3-4aee-adb9-9e01169471c6, task_id=89bb32fd-463b-4b1a-80ff-7a829e0ce500 (api:52)
2019-02-11 10:11:59,694+0000 INFO  (jsonrpc/1) [jsonrpc.JsonRpcServer] RPC call ISCSIConnection.discoverSendTargets succeeded in 0.47 seconds (__init__:573)

.......

2019-02-11 10:06:11,178+0000 INFO  (jsonrpc/3) [vdsm.api] START connectStorageServer(domType=3, spUUID=u'00000000-0000-0000-0000-000000000000', conList=[{u'id': u'00000000-0000-0000-0000-000000000000', u'connection': u'10.10.8.13', u'iqn': u'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', u'user': u'', u'tpgt': u'1', u'password': '********', u'port': u'3260'}], options=None) from=::ffff:10.10.8.130,40100, flow_id=319998e1-3f2c-410a-bbfa-7549abf3529c, task_id=ae8f21c6-56a9-424d-9a91-91d2c176f868 (api:46)
2019-02-11 10:06:12,298+0000 INFO  (jsonrpc/3) [vdsm.api] FINISH connectStorageServer return={'statuslist': [{'status': 0, 'id': u'00000000-0000-0000-0000-000000000000'}]} from=::ffff:10.10.8.130,40100, flow_id=319998e1-3f2c-410a-bbfa-7549abf3529c, task_id=ae8f21c6-56a9-424d-9a91-91d2c176f868 (api:52)
2019-02-11 10:06:12,300+0000 INFO  (jsonrpc/3) [jsonrpc.JsonRpcServer] RPC call StoragePool.connectStorageServer succeeded in 1.13 seconds (__init__:573)

START connectStorageServer(domType=3, spUUID=u'00000000-0000-0000-0000-000000000000', conList=[{u'id': u'00000000-0000-0000-0000-000000000000', u'connection': u'10.10.8.13', u'iqn': u'iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', u'user': u'', u'tpgt': u'1', u'password': '********', u'port': u'3260'}], options=None) from=::ffff:10.10.8.130,40100, flow_id=319998e1-3f2c-410a-bbfa-7549abf3529c, task_id=ae8f21c6-56a9-424d-9a91-91d2c176f868 (api:46)
2019-02-11 10:06:12,298+0000 INFO  (jsonrpc/3) [vdsm.api] FINISH connectStorageServer return={'statuslist': [{'status': 0, 'id': u'00000000-0000-0000-0000-000000000000'}]} from=::ffff:10.10.8.130,40100, flow_id=319998e1-3f2c-410a-bbfa-7549abf3529c, task_id=ae8f21c6-56a9-424d-9a91-91d2c176f868 (api:52)
2019-02-11 10:06:12,300+0000 INFO  (jsonrpc/3) [jsonrpc.JsonRpcServer] RPC call StoragePool.connectStorageServer succeeded in 1.13 seconds (__init__:573)
2019-02-11 10:06:12,516+0000 INFO  (jsonrpc/1) [vdsm.api] START getDeviceList(storageType=3, guids=(), checkStatus=False, options={}) from=::ffff:10.10.8.130,40100, flow_id=29f514f0-0219-4861-a5d5-55c0c46ab222, task_id=02f3cdea-8ffa-4291-92ee-4eb375c8e6e7 (api:46)
2019-02-11 10:06:13,632+0000 INFO  (jsonrpc/1) [vdsm.api] FINISH getDeviceList return={'devList': []} from=::ffff:10.10.8.130,40100, flow_id=29f514f0-0219-4861-a5d5-55c0c46ab222, task_id=02f3cdea-8ffa-4291-92ee-4eb375c8e6e7 (api:52)
2019-02-11 10:06:13,632+0000 INFO  (jsonrpc/1) [jsonrpc.JsonRpcServer] RPC call Host.getDeviceList succeeded in 1.12 seconds (__init__:573)

The luns are still not retrived form the target. I hit "Login"  button goes greyed out,  but still no luns ....
Connecting from other ( windows /linux ) clients to the same target works fine.
I'm still scratching my head to find out how to make this work....

Have a nice day,

Leo

On Mon, Feb 4, 2019 at 11:47 AM Benny Zlotnik <bzlotnik@redhat.com> wrote:
Do you not see something like this[1] in the vdsm log?

[1]
2019-02-04 04:45:28,804-0500 INFO  (jsonrpc/6) [vdsm.api] START discoverSendTargets(con={'ipv6_enabled': 'false', 'connection': '10.35.0.233', 'pas
sword': '', 'port': '3260', 'user': ''}, options=None) from=::ffff:10.35.1.28,58662, flow_id=f2f05e5a-fab5-43e4-8114-ee33a2f1402b, task_id=69a6d513
-6a81-4de5-bd79-0e2f748bbf39 (api:48)
2019-02-04 04:45:28,982-0500 INFO  (jsonrpc/6) [vdsm.api] FINISH discoverSendTargets return={'fullTargets': ['10.35.0.233:3260,1 iqn.2015-01.com.benny:444'], 'targets': ['iqn.2015-01.com.benny:444']} from=::ffff:10.35.1.28,58662, flow_id=f2f05e5a-fab5-43e4-8114-ee33a2f1402b, task_id=69a6d513-6a81-4de5-bd79-0e2f748bbf39 (api:54)


On Thu, Jan 31, 2019 at 4:29 PM Leo David <leoalex@gmail.com> wrote:
Thank you Benny,

from engine:

2019-01-31 14:22:36,884Z INFO  [org.ovirt.engine.core.bll.storage.connection.ConnectStorageToVdsCommand] (default task-6344) [d8697f85-8822-4588-8d7c-1ed6a5b1d9ca] Running command: ConnectStorageToVdsCommand internal: false. Entities affected :  ID: aaa00000-0000-0000-0000-123456789aaa Type: SystemAction group CREATE_STORAGE_DOMAIN with role type ADMIN
2019-01-31 14:22:36,892Z INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStorageServerVDSCommand] (default task-6344) [d8697f85-8822-4588-8d7c-1ed6a5b1d9ca] START, ConnectStorageServerVDSCommand(HostName = hp-1.test.lab, StorageServerConnectionManagementVDSParameters:{hostId='e45920ea-572d-4d52-917d-207d82c1d305', storagePoolId='00000000-0000-0000-0000-000000000000', storageType='ISCSI', connectionList='[StorageServerConnections:{id='null', connection='10.10.8.13', iqn='iqn.2004-04.com.qnap:ts-ec1280u-rp:iscsi.test.f35296', vfsType='null', mountOptions='null', nfsVersion='null', nfsRetrans='null', nfsTimeo='null', iface='null', netIfaceName='null'}]', sendNetworkEventOnFailure='true'}), log id: 347096b2
2019-01-31 14:22:38,112Z INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStorageServerVDSCommand] (default task-6344) [d8697f85-8822-4588-8d7c-1ed6a5b1d9ca] FINISH, ConnectStorageServerVDSCommand, return: {00000000-0000-0000-0000-000000000000=0}, log id: 347096b2
2019-01-31 14:22:38,437Z INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.GetDeviceListVDSCommand] (default task-6344) [0ef49cb3-8b81-4f65-8a9d-aa5d57ca6575] START, GetDeviceListVDSCommand(HostName = hp-1.test.lab, GetDeviceListVDSCommandParameters:{hostId='e45920ea-572d-4d52-917d-207d82c1d305', storageType='ISCSI', checkStatus='false', lunIds='null'}), log id: 2fdc334a
2019-01-31 14:22:39,694Z INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.GetDeviceListVDSCommand] (default task-6344) [0ef49cb3-8b81-4f65-8a9d-aa5d57ca6575] FINISH, GetDeviceListVDSCommand, return: [], log id: 2fdc334a

In vdsm I can't find something related to this operation...
It feels like is not getting the luns from the target,  although from a different client ( windows machine) i can successfully connect and map the lun.



On Thu, Jan 31, 2019 at 4:10 PM Benny Zlotnik <bzlotnik@redhat.com> wrote:
Can you attach engine and vdsm logs?

On Thu, Jan 31, 2019 at 4:04 PM Leo David <leoalex@gmail.com> wrote:
Hello everyone,
Trying to setup an iscsi target as a storage domain,  and it seems not to be possible.
Discovered the hosts,  the targets are displayed.
Selected one target, clicked the "Login" arrow, spinner runs a bit ,  and the arrow gets grayed out.
But no LUNs are displayed, to select from.
From this step,  I can't go further,  if I hit "OK" nothing happends.
Just as a thought....ssh into the ovirt node used as initiator, and lsblk command shows the block device as present.
So i have to cancel the "New Domain" windows without being able to add the domain,  but that iscsi block device still remains present on the hosts.

Using 4.2.8

Any thoughts ? 

Thank you very much !

Leo

--
Best regards, Leo David
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Best regards, Leo David


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Best regards, Leo David