Hi all,
 I'm having some issues with one VM. The VM won't start and it's showing problems with the virtual disks so I started the VM without any disks and trying to hot adding the disk and that's fail too.

 The servers are connected thru FC, all the other VMs are working fine.

  Any ideas?.

Thanks!!

PS: The engine.log is showing this:
2020-09-15 20:10:37,926-03 INFO  [org.ovirt.engine.core.bll.storage.disk.HotPlugDiskToVmCommand] (default task-168) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] Lock Acquired to object 'EngineLock:{exclusiveLocks='[f5bd2e15-a1ab-4724-883a-988b4dc7985b=DISK]', sharedLocks='[71db02c2-df29-4552-8a7e-cb8bb429a2ac=VM]'}'
2020-09-15 20:10:38,082-03 INFO  [org.ovirt.engine.core.bll.storage.disk.HotPlugDiskToVmCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] Running command: HotPlugDiskToVmCommand internal: false. Entities affected :  ID: 71db02c2-df29-4552-8a7e-cb8bb429a2ac Type: VMAction group CONFIGURE_VM_STORAGE with role type USER
2020-09-15 20:10:38,117-03 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.HotPlugDiskVDSCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] START, HotPlugDiskVDSCommand(HostName = nodo2, HotPlugDiskVDSParameters:{hostId='1c24c269-76c3-468d-a7ce-d0332beb7aef', vmId='71db02c2-df29-4552-8a7e-cb8bb429a2ac', diskId='f5bd2e15-a1ab-4724-883a-988b4dc7985b', addressMap='null'}), log id: f57ee9e
2020-09-15 20:10:38,125-03 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.HotPlugDiskVDSCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] Disk hot-plug: <?xml version="1.0" encoding="UTF-8"?><hotplug>
  <devices>
    <disk snapshot="no" type="block" device="disk">
      <target dev="vda" bus="virtio"/>
      <source dev="/rhev/data-center/mnt/blockSD/55327311-e47c-46b5-b168-258c5924757b/images/f5bd2e15-a1ab-4724-883a-988b4dc7985b/bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f">
        <seclabel model="dac" type="none" relabel="no"/>
      </source>
      <driver name="qemu" io="native" type="qcow2" error_policy="stop" cache="none"/>
      <alias name="ua-f5bd2e15-a1ab-4724-883a-988b4dc7985b"/>
      <serial>f5bd2e15-a1ab-4724-883a-988b4dc7985b</serial>
    </disk>
  </devices>
  <metadata xmlns:ovirt-vm="http://ovirt.org/vm/1.0">
    <ovirt-vm:vm>
      <ovirt-vm:device devtype="disk" name="vda">
        <ovirt-vm:poolID>00000001-0001-0001-0001-000000000311</ovirt-vm:poolID>
        <ovirt-vm:volumeID>bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f</ovirt-vm:volumeID>
        <ovirt-vm:imageID>f5bd2e15-a1ab-4724-883a-988b4dc7985b</ovirt-vm:imageID>
        <ovirt-vm:domainID>55327311-e47c-46b5-b168-258c5924757b</ovirt-vm:domainID>
      </ovirt-vm:device>
    </ovirt-vm:vm>
  </metadata>
</hotplug>

2020-09-15 20:10:38,289-03 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.HotPlugDiskVDSCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] Failed in 'HotPlugDiskVDS' method
2020-09-15 20:10:38,295-03 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] EVENT_ID: VDS_BROKER_COMMAND_FAILURE(10,802), VDSM nodo2 command HotPlugDiskVDS failed: General Exception: ("Bad volume specification {'device': 'disk', 'type': 'disk', 'diskType': 'block', 'specParams': {}, 'alias': 'ua-f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'domainID': '55327311-e47c-46b5-b168-258c5924757b', 'imageID': 'f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'poolID': '00000001-0001-0001-0001-000000000311', 'volumeID': 'bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f', 'path': '/rhev/data-center/mnt/blockSD/55327311-e47c-46b5-b168-258c5924757b/images/f5bd2e15-a1ab-4724-883a-988b4dc7985b/bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f', 'discard': False, 'format': 'cow', 'propagateErrors': 'off', 'cache': 'none', 'iface': 'virtio', 'name': 'vda', 'serial': 'f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'index': 0}",)
2020-09-15 20:10:38,295-03 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.HotPlugDiskVDSCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] Command 'org.ovirt.engine.core.vdsbroker.vdsbroker.HotPlugDiskVDSCommand' return value 'StatusOnlyReturn [status=Status [code=100, message=General Exception: ("Bad volume specification {'device': 'disk', 'type': 'disk', 'diskType': 'block', 'specParams': {}, 'alias': 'ua-f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'domainID': '55327311-e47c-46b5-b168-258c5924757b', 'imageID': 'f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'poolID': '00000001-0001-0001-0001-000000000311', 'volumeID': 'bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f', 'path': '/rhev/data-center/mnt/blockSD/55327311-e47c-46b5-b168-258c5924757b/images/f5bd2e15-a1ab-4724-883a-988b4dc7985b/bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f', 'discard': False, 'format': 'cow', 'propagateErrors': 'off', 'cache': 'none', 'iface': 'virtio', 'name': 'vda', 'serial': 'f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'index': 0}",)]]'
2020-09-15 20:10:38,295-03 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.HotPlugDiskVDSCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] HostName = nodo2
2020-09-15 20:10:38,295-03 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.HotPlugDiskVDSCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] Command 'HotPlugDiskVDSCommand(HostName = nodo2, HotPlugDiskVDSParameters:{hostId='1c24c269-76c3-468d-a7ce-d0332beb7aef', vmId='71db02c2-df29-4552-8a7e-cb8bb429a2ac', diskId='f5bd2e15-a1ab-4724-883a-988b4dc7985b', addressMap='null'})' execution failed: VDSGenericException: VDSErrorException: Failed to HotPlugDiskVDS, error = General Exception: ("Bad volume specification {'device': 'disk', 'type': 'disk', 'diskType': 'block', 'specParams': {}, 'alias': 'ua-f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'domainID': '55327311-e47c-46b5-b168-258c5924757b', 'imageID': 'f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'poolID': '00000001-0001-0001-0001-000000000311', 'volumeID': 'bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f', 'path': '/rhev/data-center/mnt/blockSD/55327311-e47c-46b5-b168-258c5924757b/images/f5bd2e15-a1ab-4724-883a-988b4dc7985b/bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f', 'discard': False, 'format': 'cow', 'propagateErrors': 'off', 'cache': 'none', 'iface': 'virtio', 'name': 'vda', 'serial': 'f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'index': 0}",), code = 100
2020-09-15 20:10:38,296-03 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.HotPlugDiskVDSCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] FINISH, HotPlugDiskVDSCommand, return: , log id: f57ee9e
2020-09-15 20:10:38,296-03 ERROR [org.ovirt.engine.core.bll.storage.disk.HotPlugDiskToVmCommand] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] Command 'org.ovirt.engine.core.bll.storage.disk.HotPlugDiskToVmCommand' failed: EngineException: org.ovirt.engine.core.vdsbroker.vdsbroker.VDSErrorException: VDSGenericException: VDSErrorException: Failed to HotPlugDiskVDS, error = General Exception: ("Bad volume specification {'device': 'disk', 'type': 'disk', 'diskType': 'block', 'specParams': {}, 'alias': 'ua-f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'domainID': '55327311-e47c-46b5-b168-258c5924757b', 'imageID': 'f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'poolID': '00000001-0001-0001-0001-000000000311', 'volumeID': 'bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f', 'path': '/rhev/data-center/mnt/blockSD/55327311-e47c-46b5-b168-258c5924757b/images/f5bd2e15-a1ab-4724-883a-988b4dc7985b/bd714f21-8eed-43ee-a2d4-3d2ef1ee4c3f', 'discard': False, 'format': 'cow', 'propagateErrors': 'off', 'cache': 'none', 'iface': 'virtio', 'name': 'vda', 'serial': 'f5bd2e15-a1ab-4724-883a-988b4dc7985b', 'index': 0}",), code = 100 (Failed with error GeneralException and code 100)
2020-09-15 20:10:38,307-03 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-36528) [dd72c8e8-cdbe-470f-8e32-b3d14b96f37a] EVENT_ID: USER_FAILED_HOTPLUG_DISK(2,001), Failed to plug disk owncloud_Disk0 to VM owncloud (User: admin@internal-authz).