Internal SSD to Drive Pool full speed, SSD over network to DrivePool won't even saturate gigabit

[bobloadmire]

basically an optimization question. I tested all 4 of the disks in my pool with Scanner, they all did about 250-350MB/s, so my USB controllers are good. I enable jumboframes on both the host and clients. Internal SSD has fantastic performance 600MB/s to the buffers and sustains 250-300MB/s after that. I have network i/o boost on, but I cannot get more than about 600Mb/s over the gigabit network, and I'm expecting to get 900+ with overhead. Any tips at things I should look at?

[Christopher (Drashna)]

Have you messed with the autotuning?  if not, that is the usual culprit.  Setting it to highlyrestricted can help, a lot. 

Try running this on any system involved:

netsh interface tcp set global autotuninglevel=highlyrestricted

And reboot the system. 

[bobloadmire]

19 hours ago, Christopher (Drashna) said:

Have you messed with the autotuning?  if not, that is the usual culprit.  Setting it to highlyrestricted can help, a lot. 

Try running this on any system involved:

netsh interface tcp set global autotuninglevel=highlyrestricted

And reboot the system. 

Ok did that, CMD output "OK" so I assume that did it. still capping out at 730ish mbps. Do I need to run that on the client machine as well?

[Christopher (Drashna)]

Yeah, you want to run it on both systems, and you want to reboot after running it to ensure that it takes effect. 

[bobloadmire]

On 6/17/2022 at 12:31 PM, Christopher (Drashna) said:

Yeah, you want to run it on both systems, and you want to reboot after running it to ensure that it takes effect. 

unfortunately, didn't make a difference, still limited to about 700mbps