[ovirt-users] Can't switch ovirt host to maintenance mode : image transfer in progress

Hi, While upgrading host from ovirt 4.1.9 to ovirt 4.2.2, got one ovirt host which I can't move to maintenance mode for the following reason : 2018-05-02 10:16:18,789+02 WARN [org.ovirt.engine.core.bll.MaintenanceNumberOfVdssCommand] (default task-27) [193c3d45-5b25-4ccf-9d2c-5b792e99b9fe] Validation of action 'MaintenanceNumberOfVdss' failed for user admin@internal-authz. Reasons: VAR__TYPE__HOST,VAR__ACTION__MAINTENANCE,VDS_CANNOT_MAINTENANCE_HOST_WITH_RUNNING_IMAGE_TRANSFERS,$host xxxxx,$disks a1476ae5-990d-45a7-90bd-c2553f8d08d3, b2616eef-bd13-4d9b-a513-52445ebaedb6, 13152865-2753-407a-a0e1-425e09889d92,$disks_COUNTER 3 I don't know what are those 3 images transfers in progress, there is no VM running on this host. I try to list old task running on it with the taskcleaner.sh script on the engine : found nothing. How can I delete or remove those entries ? Regards, Arnaud Lauriou