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10GB NIC but VM only getting 1GB transfer speed

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Hi,

I have a Hyper-V 2012 R2 server with 4 1GB in a team for VM traffic and that's working fine. i have a second windows 2016 server activing as file server. I installed a 10GB NIC in each of the physical servers via a cross over cable. Gave them local IPs and can ping and file transfer between them and the file copy show 1GB/s. However if i then create a virtual switch using that NIC, and add a virtual NIC to a VM on that switch my file copies never go over 100MB/s (same I get wiht 1GB NICs).

Am I missing something here that needs to be done? I have 35TB of data to copy and really need 10GB speed. I can not mount the VHDs and copy that way as the VM is production and needs to be up.

Many thank in advance.

Matt


Matt Peek


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