Hi, It looks that ovirt doesn't consider that your host has any PFs/VFs. You should navigate to ovengine 4.3 and 4.4 and see those differences in 'Host Devices' in some host. The basic check is then to check if iommu is 'on' on those hosts. This might rely on ovengine's control on that (check 'host properties'), but you should check if that really works by commands on the host. Check https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_op... Even though it is for OpenStack, you should check those parts that relate to hypervisor (thus only section 9.1. Configure SR-IOV in your RHEL OpenStack Platform deployment ) and things about your HW/drivers/those things around number of PFs/VFs. Once you change anything on host you should click 'Refresh capabilities' and see if PFs/VFs appeared BR, Konstantin On 13.12.22, 22:14, &quot;oliveira(a)uc.pt <mailto:oliveira@uc.pt>" <oliveira(a)uc.pt <mailto:oliveira@uc.pt>> wrote: Hi everyone, On a new oVirt 4.4.10.7-1.el8 deployment I am unable to star a VM with a SRIOV IB interface. I always get the message: Error while executing action: login003: Cannot run VM. There is no host that satisfies current scheduling constraints. See below for details: The host nvirt002.lca.uc.pt did not satisfy internal filter HostDevice because the host does not provide requested host devices. The host nvirt000.lca.uc.pt did not satisfy internal filter HostDevice because some of the required host devices are unavailable. The host nvirt003.lca.uc.pt did not satisfy internal filter HostDevice because the host does not provide requested host devices. The host nvirt005.lca.uc.pt did not satisfy internal filter HostDevice because the host does not provide requested host devices. The host nvirt004.lca.uc.pt did not satisfy internal filter HostDevice because the host does not provide requested host devices. The host nvirt001.lca.uc.pt did not satisfy internal filter HostDevice because the host does not provide requested host devices. Given that I am trying to run it on login000 I guess the relevant error is that the host device is unavailable. I cannot find any other errors or messages that seem relevant to this on any other logs. How do I even start debugging this? I have another deployment with 4.3 where it just works. Best Regards and thank you, Miguel Oliveira _______________________________________________ Users mailing list -- users(a)ovirt.org <mailto:users@ovirt.org> To unsubscribe send an email to users-leave(a)ovirt.org <mailto:users-leave@ovirt.org> Privacy Statement: https://www.ovirt.org/privacy-policy.html <https://www.ovirt.org/privacy-policy.html> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ <https://www.ovirt.org/community/about/community-guidelines/> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org <mailto:users@ovirt.org>/message/Z6NXDPOAHZBZONCWX64BQPJB4YDJ23JH/