Upgrade RAM / Arc Hit Ratio Looks Fine

[OhioYJ]

I built my TrueNas box on some "left over" hardware and at some point figured I'd need to upgrade the RAM. However with my very basic understanding after looking at my ARC Hit Ratio, I'm thinking maybe my current RAM configuration is actually fine? Below is my ARC hit ratio, during an extended transfer:

My hardware is:
Intel 10400
16 GB Ram
8 - 4 TB Drives

Is there anything to be gained my increasing my RAM? From what I'm reading / finding, as long as that ARC ratio stays above 90 the answer appears to be no? Or is it more complicated than that? Am I losing performance by not having extra RAM?

 

[sretalla]

Have a look at arc_summary and see if there's anything more there, but in general, if you don't need the RAM for anything else, you're probably fine to leave it.