[ovirt-users] Migrate machines in unknown state?

[Nicolás]

Hi,

We're running oVirt 4.0.1 and today I found out that one of our hosts 
has all its VMs in an unknown state. I actually don't know how (and 
when) did this happen, but I'd like to restore service possibly without 
turning off these machines. The host is up, the VMs are up, 'qemu' 
process exists, no errors, it's just the VMs running on it that have a 
'?' where status is defined.

Is it safe in this case to simply modify database and set those VM's 
status to 'up'? I remember having to do this a time ago when we faced 
storage issues, it didn't break anything back then. If not, is there a 
"safe" way to migrate those VMs to a different host and restart the host 
that marked them as unknown?

Thanks.

Nicolás