Now, maybe it is just me, but looks like there's a sort of hidden answer in this statement of the KB:
Does it mean this will occurr ONLY with Windows vms? because i'm running this job on Linux vms and even if i check the VMware tools option this job still runs in NFS, not NBD.If you enable the Enable VMware tools quiescence option in the job settings, Veeam Backup & Replication will not use the Direct NFS access mode to process running Microsoft Windows VMs that have VMware Tools installed.
And if true, what can i do to switch to NBD even if i've set up Direct Storage Access in proxy? It's an Alfresco server and no quiescence doesn't look fair/safe to me.....switch back to automatic selection?
Thanks