[ovirt-users] Suddenly all VM's down including HostedEngine & NFSshares (except HE) unmounted

HI All, I'm trying to tackle an issues on 4.0.2 that sunddenly all VM's including the HostedEngine are just down at once. I have also seen that all NFS shares are unmounted except the HostedEngine Storage, which is on the same NFS device as well. I have checked the logs, nothing strange to see there, but as I run a vrrp setup and do some tests also I wonder if there is a duplicate IP brought up, could this make happen the whole system to go down and the Engine or VDSM unmounts the NFS shares ? My switches don't complain. It's strange that the HE share is only available after it happens. If so, this would be quite fragile and we should tackle where it goes wrong. Anyone seen this bahaviour ? Thanks, Matt