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SMB from office to home was stuck at 2MB sec now 11MB sec over VPN

CIFS/SMB network sharing.
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Bobby072
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Joined: 18 May 2020 06:31
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SMB from office to home was stuck at 2MB sec now 11MB sec over VPN

#1

Post by Bobby072 »

In hopes it might help someone else using XigmaNas and having transfer issues over VPN from SMB shares.
Here is what fixed it for me.

I had left the smb buffers to defualt settings and had no issues on the network doing backups to the NAS.
That is until I set up VPN on the office server. At first I thought it was just VPNs overhead with encryption and tried to tweak Open VPN with not much luck. Then I looked at the NAS SMB settings for the actual fix.

Now I have 500/100 fiber office and 350/30 home I set up a TurnKey VPN server at the office.
Over FTP I got full 100Mbit speed but on VPN using smb I was stuck at 2MB/sec (MegaBytes) speed when I should be closer to 10-12MB/sec range.

I had AIO OFF turning it on and changing AIO r/w value from 4096 to 128,480 then changed the send and rec buffers which were at 64,000 to 514,000 and 1,028,000

those did the difference. I had to transfer over 300 GB and it never dropped much below 10M/sec over VPN.

SMB from office to home was stuck at 2MB sec now 11MB sec over VPN!, shaved many hours off the transfer.

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