I've tried following prior posts, swapping cables, going directly to my server over ethernet...nothing works. I cannot get faster than 1GbE speeds. 

 

Server (Qnap TS-462): 

- 2.5 GbE onboard

- Mellanox 10gb SFP+ DAC (installed drivers)

 

Network Switch: 

4x 2.5GbE

2x 10G SFP+ DAC

 

PC: 
- Intel 226 2.5GbE on board 

- Realtek 2.5GbE in Dell USB hub monitor 

 

I can confirm in iPerf that both my PC's connections are hitting expected speeds, and i've enabled all SMB multi-channel settings...but I can't even get 225MB/s reads off the array. I usually can't even get 1GbE speeds (100-125MB/s). Kind of stuck here:

 

tower-diagnostics-20241012-1808.zip

Are those iperf results from eth0 or eth1?

I believe eth1 🤔, I can re-run it to confirm from both. I assume just down one port at a time, run the test, then switch ports which ports are up? 

EDIT: I'm getting 2.4Gbits from eth0 and eth1. 

 

 

For some reason my monitors 2.5GbE is quite slow, less than 1Gbit. But that's another issue for another time. For now I can disable that and work on just the question of getting to 2.5GbE speeds out of the server. 
 

Edited October 13, 20241 yr by tooApe

6 hours ago, tooApe said:

I assume just down one port at a time, run the test, then switch ports which ports are up?

You can just use the correct IP for each interface.

Thanks, I edited my prior post with the results. Still getting 2.5g from both interfaces. 

 

Is the other PC also using 10GbE?

No, my PC has two 2.5GbE ports. But I can't get anywhere near 2.5gb speed let alone any SMB multichanneling speeds. 

The iperf results are good for 2.5GbE, post a screenshot from the Windows explorer graph while doing a large file transfer, make sure both source and destination devices can handle 250MB/s, and disable multichannel for now.

For some reason it will hit 250MB now... other than stopping the array, and turning SMB MC off to try this transfer, nothing changed. I tried turning Multichannel back on and retrying and it still hit 250MB/s but only 250MB/s. 

 

Is SMB just this flakey? 

It's working correctly now.

Anything I can do to improve reliability? I'm back down in the 80s again. Iperf looks the same, changed nothing in windows. 

Where is the source you are copying from?

This latest one was from the array (4x7200rpm HDDs), to a local NVME SSD. 

Do you mean a server to server copy?

No, sorry for the confusion. That was Server array to Client SSD (windows PC). 

Post a screenshot from Network settings, and are using the 10GbE or 2.5GbE NIC for that transfer?