Tag Archives: virtual machines

Demystifying SMB 3.x multichannel – part 8 – VM1 on Hyper-V host 1 to VM2 on Hyper-V host 2 – 4 NICs in each VM

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We are upgrading configuration from previous part (7) so we are adding additional Virtual Network Adapters to both VMs (so each will have 4).

*** When I “hot added” network cards you can see that the throughput was bad (probably we should wait for couple of seconds or minutes for reconfiguration as new network adapters were added) – so on 56th second I am pausing the video for a VMs reboot and on 58th second I am resuming recording after VMs reboot. You can see that after reboot everything works great and we are getting maximum speed out of our 4 physical NICs in each of our Hyper-V hosts.

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Demystifying SMB 3.x multichannel – part 7 – VM1 on Hyper-V host 1 to VM2 on Hyper-V host 2 – single NIC in each VM

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From physical we are moving to virtual now – so I have created a small demo of two VMs on two separate Hyper-V hosts (connected to same switch with 4 physical NICs each). Each VM has only one Virtual Network Adapter.

As we can see we are getting 1 gigabit throughput from first to second VM. We can alo see the utilization of physical NICs on our Hyper-V hosts (transfer is using only one NIC).