I was wondering what speeds people are seeing when writing to discs over the JMS561? The spec says they can do 400 Mbytes/s however I am seeing significantly less.
Macbook wired to Pi over gigabit switch - 940 Mbit/s with iperf (~117 MByte/s)
4TB WD Red NAS HDD - Max 150 Mbyte/s
JMS561 SATA Hat on Pi - 400 Mbyte/s spec
Samba share from Pi to Macbook
Taking overhead into account I would expect something around 100 MByte/s when writing over the network, however I am only seeing between 25-30 Mbyte/s right now… My feeling is that Samba is to blame, I am going to give NFS a try and see if that helps.
What is everyone else seeing on their setups?