As you can see, the first photo shows transferring files from unarid to my computer can reach 1G network speed

 

 

 

But transfer files from my computer to unraid it can only reach about 800M

 

Hard disk on unraid test write speed can reach about 200MB/s+, so I don't think disk is a problem

can someone help me pls?

From Google Translate ，sorry for my bad English

Start by running a single stream iperf test.

50 minutes ago, JorgeB said:

Start by running a single stream iperf test.

 

Throughput as server and client is inconsistent，what does this mean?

Means it should be a network problem, try different NIC, switch, cable, client, etc.

If everything is exactly the same backwards and forward, meaning there isnt a redundant path or something, it could be the difference in read/write speed on one of the devices.

 

to put it in a simpler way, One device might be able to read at 112MBps but only write at 77MBps. 

 

here is mine:

from client to server:

 

and server to client:

 

 

~30MB difference