During the P2V process the copied data are encrypted by VMware vCenter Converter. This might slightly impact the performance.

This is a default setting for the VMware vCenter converter 5 standalone. What must be done is to disable SSL encryption for the converter worker. This can be done by editing the local converter-worker.xml file and restart the windows service called VMware vCenter Converter Standalone Worker.

Step-by Step to disable it:

To disable SSL encryption for the converter worker:

  1. Locate the converter-worker.xml file. By default it is located at:
    • %ALLUSERSPROFILE%\VMware\VMware vCenter Converter Standalone on Windows Vista and newer operating systems
    • %ALLUSERSPROFILE%\Application Data\VMware\VMware vCenter Converter Standalone for older releases
  2. Make a backup of the converter-worker.xml file.
  3. Open the file in a text editor and locate the tag pair <useSsl></useSsl>. It is located inside the <nfc> tag and has a value of true.
  4. Change the value to false.
  5. Save and close the file.
  6. Restart the VMware vCenter Converter Standalone Worker service on the machine.

Source: VMware KB