Can anyone help with this please? New to Unraid and your thoughts will be greatly appreciated.

Issue - A few days ago, I was able to get speeds of 800MB+ between my Windows PC and my Unraid Server, now that speed is only hitting about 350 MB.

Key Unraid Server Specs:

Network Card - Asus ( https://www.asus.com/.../wired.../all-series/xg-c100c/)

Motherboard - ASRock Z790 ( https://www.microcenter.com/.../Z790_Riptide_WiFi_Intel... )

NVME - Inland Plus 2TB ( https://www.microcenter.com/.../Performance_Plus_2TB_3D... )

CPU - Intel Core i7-13700 (https://www.microcenter.com/.../Core_i7-13700_Raptor_Lake... )

Connected to switch via 50 ft Cat 8 cable

Windows Specs:

Network Card - Asus ( https://www.asus.com/.../wired.../all-series/xg-c100c/)

Motherboard - Tuf Gaming X570- Plus ( https://www.asus.com/.../tuf-gaming/tuf-gaming-x570-plus/ )

NVME - WD SN750 ( https://documents.westerndigital.com/.../data-sheet-wd... )

CPU - AMD Ryzen 9 3950X ( https://www.amd.com/.../amd-ryzen-9.../amd-ryzen-9-3950x )

Connected via 20 ft CAT 7 cable.

10 Gb Network Switch: TP-Link TL-SX1008 ( https://www.tp-link.com/.../unmanaged-switch/tl-sx1008/ )

The 2 recent changes I made were the network switch from a 10 GB Mokerlink in the past and upgrading my Server to the Cat 8 cable from a Cat 6 cable.

Tests and Results:

Windows to Windows NVME - 1.2 GB/s +
Unraid to Unraid Share - 4.3GB/s +

iPerf 3 from Windows to Unraid: 3.02 Gb/s 
iPerf 2 from Unraid to itself: 113 Gb/s
 

I want to stress again that I was previously hitting 800+ MB/s on my old Network switch and Cat 6 cable to the server. What am i missing?

It does not make a difference if my temporary cache on the Unraid is completely empty or has had data transferred to it (and not yet moved over).

Also worth mentioning is that while my Network card and Switch both support Jumbo frames, setting my Unraid MTU to 9000 takes my machine offline and needs me to re edit the network file down to 1500. (this is unrelated)

Sorry for the lengthy post, but i was hoping to be as detailed to help

 

First of all: FORGET the jumbo frames, they are a relict from ancient times, they only still exist for downwards compatibility.

(They were introduced to save CPU times when networks got faster than 100Mbs. But later on, more intelligent NICs appeared and offloading the stressing calculations is standard now. So, there is no benefit of Jumbo Frames anymore today)

 

Second: The ASUS card is sold as a "gaming device", it is not meant to be used in servers. It cannot handle many concurrent connections, it will slow down if stressed a lot.

Get someting real like a card from Intel or (even better) mellanox.

 

Third: 50ft is sporty. It SHOULD work but it is already in the risky range. But I think, your "Cat8" cable maybe a cheat. Look at the bill, if it tells you "raw cable" it means, that the cable is ok, but the plugs on both ends do not match CAT8 criteria.

 

Try your old CAT6 cable again and see if things get better. 

 

Thank you so much for your response Mutley  

I made the change because the Cat 6 cable was not working so i dot think changing it back will help. I just cant figuire out why it stopped all of a sudden or why my iPerf test from Windows to Unraid is 3.0 Gb/s when i thought it would be closer to 10 Gb/s

 

SOLVED: Thank you to everyone commenting on this especially to my buddy Benjamin  who just threw different ideas at me and one of them triggered me to do additional testing and ultimately realize i knew where the problem was!

The Solution for anyone this may help in the future is the BOND slowed me down. I had to DISABLE the onboard network card and BAM. All my speeds came to exactly where they should be! Again thank you all for the help, and i am thrilled to say this finally got resolved (and now i dont have to loose more sleep thinking about it) lol