I got this error message on one of the discs that was unassigned (which was the disc number 22 in the server).

Shall I just start the server again and let it rebuild (with this error on disc 22) ?

CRC Errors are connection issues not drive issues. The counter won't reset, but you can acknowledge the SMART warning by clicking on it on the Dashboard. You will get another warning if the count increases.

 

Continue with rebuild

Rebuilds done. Its seems to be working fine. I just have one problem, which I had for quite a while - when I copy from a Mac (mac os) to the server, the speed is not as high as I think it should be (maybe 30-50 mb/s). Also, when the copy says "5 sec left" it stops for maybe 20-30 seconds before finishing the copy. I am using SMB. Are there any settings that I should look into to help with this issue ?

federalreserve-diagnostics-20200222-1114.zip

30/50MB/s is about right for default writing mode, it should be faster with turbo write, at the expense of all drives spinning up for writes. 

Ok, thanks for the feedback. I was more concerned with the 30 sec wait even if it said "5 sec left". Is this normal with the unraid ?

That might be more of an OSX issue, I don't' see that with Windows.

2 hours ago, Kjetil said:

Ok, thanks for the feedback. I was more concerned with the 30 sec wait even if it said "5 sec left". Is this normal with the unraid ?

I suspect that this may be related to the time in is taking Unraid to flush all the data from RAM to the disks (but I could be wrong ).

6 minutes ago, itimpi said:

I suspect that this may be related to the time in is taking Unraid to flush all the data from RAM to the disks (but I could be wrong ).

Could be, maybe OSX uses sync writes with SMB by default.