FYI
I virtualize a NFS server with 6 x 2Tb SATA drives connected directly to the KVM with virtio drivers configured as a Raid 5 md device.
Putting the NFS server in the PVE box directly I get around 110 Mbytes/s in a 1Gb LAN, with the virtualized NFS server I get between 70 and 80 Mbytes/s, that...