That is my next step but I want to put a load on my system first. I will
update the numbers by Friday for those who are curious.

As per my question, I did not set the sga_max_size the only thing I increased
was the db_buffer_cache from 1G -> 2GB but the sga_max_size did grow 1GB
along with the total SGA, which I expected.

So it looks like it is calculated since I did not implicitly set it. Does that
seem correct? Does the sga_max_size only apply when using ASM? I mean
does it have to be set when using sga_target_size?

Thanks for your help Stecal, its greatly appreciated.