I have noticed that exporting a VM using Hyper-V is much much much...much faster than exporting a VM to OVF, using VMware. This is in an environment where the servers, network, NAS and configuration (IE local data stores are hard drives) all being equal.
When I export a VM to a our NAS over a 1GB switch connecting directly to an ESXI host using Vcenter Client, the process always uses no more than 18.75 MB/s over the switch when I watch it. However when doing the same thing by RDPing into the Hyper-V host and issuing a powershell command to export a VM to the same NAS, when I watch this transit the switch I am seeing speeds at about 87.5 MB/s to 106.25 MB/s. Needless to say (but I did anyway), this later scenario export completes much faster.
Does anyone have any ideas why this is so?