Using midnight commander to move flies from one disk to another, the files starts at 50 mbps odd and then drops down to 3-4 mbps. There is no parity disk either, so I am guessing parity write also not involved to slow down the copy. Please help, diagnostics attached

diagnostics-20161123-1848.zip

Using midnight commander to move flies from one disk to another, the files starts at 50 mbps odd and then drops down to 3-4 mbps. There is no parity disk either, so I am guessing parity write also not involved to slow down the copy. Please help, diagnostics attached

You have an array of 20 data disks without parity? Why?

 

Which drives specifically are involved in the move?

Sil3132 is having IRQ issues, when the IRQ gets disable it's normal for transfers  to slow down considerably.

 

Try a different PCIe slot if available or replace controller.

 

You have an array of 20 data disks without parity? Why?

 

Good question