SMB MultiChannel issue

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hi expert,

a question smb multichannel on windows server 2012 r2.

  1. we have 2 servers (one hyper-v host, other file share host used vhdx via smb).
  2. 6 nics each server, 5 of 6 nics are gb adapter, , 1 of 6 nics is 10gb adapter.
  3. the output of get-smbmultichannelconnection shows 1 connection established between 2 servers on 10gb network, expected?

because have replace old 10gb switch new one, need make sure multi connections exists between 2 servers.

amoschb

hi,

please see article:

https://technet.microsoft.com/en-us/library/dn610980.aspx

above all, 5 of 6 nics slower rest one, smb connection may use 10gb adapter connection (as more nics cause slower speed in load balance). see here.

so question "will multichannel created on 10gb nic". 

please check system resource using task manager or performance monitor monitor each core of cpu. 

when copy large file, if there 1 specific core in heavy load, multichannel may not working betwwen 2 servers.

please remember mark replies answers if , un-mark them if provide no help. if have feedback technet support, contact tnmff@microsoft.com.




Windows Server  >  File Services and Storage



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