[How much RAM do you have installed in your unRAID server?]

2GB but there is no option to specify this....

[unraid-tunables-tester.sh - A New Utility to Optimize unRAID md_* Tunables]

I just wanted to say thanks for all the work that has been done here.  I ran this util a few months back and my supermicro X7SPA build went from an average read speed of 15megs a second I have experienced for the last few years up to 50!  I just came looking for this thread to check for any updates and found it on page 3.  It really should be stickied!