i try install oVirt hosted-engine. For storage i use iscsi target (Infotrend DS1012RE). I make install, but have error to service ovirt-ha-broker.service and vdsmd.service:systemctl -l status ovirt-ha-broker.service  ovirt-ha-broker.service- oVirt Hosted Engine High Availability Communications Broker   Loaded: loaded (/usr/lib/systemd/system/ovirt-ha-broker.service; enabled; vendor preset: disabled)   Active: active (running) since Thu 2017-08-17 15:28:57 +07; 48s ago Main PID: 1926 (ovirt-ha-broker)   CGroup: /system.slice/ovirt-ha-broker.service          1926 /usr/bin/python /usr/share/ovirt-hosted-engine-ha/ovirt-ha-broker --no-daemonAug 17 15:28:57 vnode10.pi.local systemd[1]: Started oVirt Hosted Engine High Availability Communications Broker. Aug 17 15:28:57 vnode10.pi.local systemd[1]: Starting oVirt Hosted Engine High Availability Communications Broker... Aug 17 15:29:08 vnode10.pi.local ovirt-ha-broker[1926]: ovirt-ha-broker ovirt_hosted_engine_ha.broker.listener.ConnectionHandler ERROR Error handling request, data: 'set-storage-domain FilesystemBackend dom_type=iscsi sd_uuid=817a5b54-26c1-4d7d-a711-dafdb1ea477d'                                                       Traceback (most recent call last):                                                         File /usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/broker/listener.py, line 166, in handle                                                           data)                                                         File /usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/broker/listener.py, line 299, in _dispatch                                                           .set_storage_domain(client, sd_type, **options)                                                         File /usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/broker/storage_broker.py, line 66, in set_storage_domain                                                           self._backends[client].connect()                                                         File /usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/storage_backends.py, line 470, in connect                                                           for lv in os.listdir(os.path.join(/dev, uuid)):                                                       OSError: [Errno 2] No such file or directory: '/dev/817a5b54-26c1-4d7d-a711-dafdb1ea477dand:systemctl -l status vdsmd.service vdsmd.service - Virtual Desktop Server Manager  Loaded: loaded (/usr/lib/systemd/system/vdsmd.service; enabled; vendor preset: enabled)  Active: active (running) since Thu 2017-08-17 15:29:07 +07; 1min 30s ago Process: 3686 ExecStartPre=/usr/libexec/vdsm/vdsmd_init_common.sh --pre-start (code=exited, status=0/SUCCESS)Main PID: 3759 (vdsm)  CGroup: /system.slice/vdsmd.service          3759 /usr/bin/python2 /usr/share/vdsm/vdsmAug 17 15:29:06 vnode10.pi.local vdsmd_init_common.sh[3686]: vdsm: Running syslog_availableAug 17 15:29:06 vnode10.pi.local vdsmd_init_common.sh[3686]: vdsm: Running nwfilterAug 17 15:29:07 vnode10.pi.local vdsmd_init_common.sh[3686]: vdsm: Running dummybrAug 17 15:29:07 vnode10.pi.local vdsmd_init_common.sh[3686]: vdsm: Running tune_systemAug 17 15:29:07 vnode10.pi.local vdsmd_init_common.sh[3686]: vdsm: Running test_spaceAug 17 15:29:07 vnode10.pi.local vdsmd_init_common.sh[3686]: vdsm: Running test_loAug 17 15:29:07 vnode10.pi.local systemd[1]: Started Virtual Desktop Server Manager.Aug 17 15:29:08 vnode10.pi.local vdsm[3759]: vdsm throttled WARN MOM not available.Aug 17 15:29:08 vnode10.pi.local vdsm[3759]: vdsm throttled WARN MOM not available, KSM stats will be missing.Aug 17 15:29:08 vnode10.pi.local vdsm[3759]: vdsm root ERROR failed to retrieve Hosted Engine HA info                                            Traceback (most recent call last):                                              File /usr/lib/python2.7/site-packages/vdsm/host/api.py, line 231, in _getHaInfo                                                stats = instance.get_all_stats()                                              File /usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py, line 103, in get_all_stats                                                self._configure_broker_conn(broker)                                              File /usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py, line 180, in _configure_broker_conn                                                dom_type=dom_type)                                              File /usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py, line 177, in set_storage_domain                                                .format(sd_type, options, e))                                            RequestError: Failed to set storage domain FilesystemBackend, options {'dom_type': 'iscsi', 'sd_uuid': '817a5b54-26c1-4d7d-a711-dafdb1ea477d'}: Request failed: <type 'exceptions.OSError>But device exist:ls -l /dev/817a5b54-26c1-4d7d-a711-dafdb1ea477dtotal 0lrwxrwxrwx. 1 root root 8 Aug 17 16:01 17bb9c12-c496-4fd3-b53e-ee4c8d319b43 -> ../dm-10lrwxrwxrwx. 1 root root 8 Aug 17 16:01 1e9a3147-34ac-4020-8f95-71aa5d1a5258 -> ../dm-13lrwxrwxrwx. 1 root root 8 Aug 17 16:01 436d8816-990e-4acd-b040-7cd948f7c0af -> ../dm-11lrwxrwxrwx. 1 root root 8 Aug 17 16:01 eeb4b310-cc23-472c-9bce-36ce27881727 -> ../dm-12lrwxrwxrwx. 1 root root 7 Aug 17 16:01 ids -> ../dm-5lrwxrwxrwx. 1 root root 7 Aug 17 16:01 inbox -> ../dm-8lrwxrwxrwx. 1 root root 7 Aug 17 16:01 leases -> ../dm-6lrwxrwxrwx. 1 root root 7 Aug 17 16:01 master -> ../dm-9lrwxrwxrwx. 1 root root 7 Aug 17 16:01 metadata -> ../dm-4lrwxrwxrwx. 1 root root 7 Aug 17 16:01 outbox -> ../dm-7I suspect the service starting before mount. I think modify After in:/usr/lib/systemd/system/vdsmd.service/usr/lib/systemd/system/ovirt-ha-broker.serviceI add iscsid.service, but it not help. Maybe say how to fix it?
How to delay start ovirt service?
iscsi;ovirt