After the 3.6 updates ( which didn't went without a hitch )
I get the following errors in my event log:
Failed to update OVF disks 18c50ea6-4654-4525-b241-09e15acf5e99, OVF data isn't updated on those OVF stores (Data Center Default, Storage Domain hostedengine_nfs).
VDSM command failed: Could not acquire resource. Probably resource factory threw an exception.: ()
Hopefully someone knows what to do about these warnings/erros and whether I can delete the OVF files.