I'm using VMWare ESXi 6.7 free installed on Dell PowerEdge R640 server with 10GB nic. Server is conected to d'link switch with 10GB ports. I have also a backup station with 10GB nic connected to the same switch. I want to copy whole VM to the backup station so tried WinSCP but i found that FileZilla is faster but anyway i get max transfer only about 160 Mb/s. My question is why it is so slow? Is there faster way to download vmdk files from the ESXi system?
What you could try is to export the VM as OVF/OVA from the vSphere Client.
Hint: Make sure that the VMs that you are going to export do not have an ISO image etc. attached to their virtual CD-ROM drive, but set the virtual CD-ROM to e.g. Client device.