Hey all,

I recently built my UNRAID server and since all parity checks are done, I was planning on transferring my movies & tv shows from my old Synology DS1522+ to my UNRAID server. I added a 10GB NIC (XG-C100C) to my UNRAID and the Synology also have a 10 GBE add-in card, both have MTU set to 9000. But when I try to transfer files, the transfer starts at around 800-900 MB/s but then it drops down massively to somewhere around 80-90 MB/s in a couple of seconds. I am not using any cache drives for these transfers and I do know I won't be getting speeds anywhere  close to 1 GB/s in unraid without a cache, but shouldn't I be getting a speed somewhere around 250 MB/s? ( Btw, I am using 5x 22TB Seagate Exos X22 drives on my Unraid, the synology uses 4x 18TB WD Red Pro drives in SHR-1 and using Krusader to transfer.)

 

This is the speed when I start the transfer -

 

This is 10 seconds later (using a different SS here, not the same transfer as above) -

 

I did an iperf3 test bw the two, and this was the result -

 

I also tried to do the transfer when connected to the 1 GB port of my synology, and that gave me a consistent 110 MB/s transfer speed. So I am wondering why a 10GB card will drop down to 80-90 MB/s?

 

Attached diagnostics. Thank you!

tars-diagnostics-20240310-0308.zip

Edited March 11, 20242 yr by reezzeer

3 hours ago, reezzeer said:

but shouldn't I get getting a speed somewhere around 250 MB/s?

You should get close to that with turbo write.

16 hours ago, JorgeB said:

You should get close to that with turbo write.

This seems to be the solution, the speed is not consistent 250 MB/s, but much much better than what it was before, thank you!