When i tranfer file in a share i have high cpu iowait, my system becomes unresponsive until the copy ends.

Netdata:

 

Share settings:

Copy:

 

 

I have cache enabled so the copy should go directly in there and in the night to the actual array

diagnostics-20200119-0010.zip

Up

Is it the same if you transfer directly to the array?

I have the same issue. For me it also happens when I directly transfer files within the array.

In DiskSpeed container I have write speeds about 170 MB/s per drive and also when writing on all drives.

iPerf was also running fine for 5 minutes.

I can also attach my diagnostics in the evening.

nas-diagnostics-20200121-2150.zip

Edited January 21, 20206 yr by RedReddington

@RedReddington - Did you ever get a fix for this? I am having the same issue.