Where does all this memory go?

From the first day DB2 has been known as a system that needs a lot of resources.
For some users in the world 2 GB is yet not enough but they will have to wait intil DB2 V8 before they can break through that limit.
DB2's hunger for memory doesn't seem to stop. Where does all this momory go?
Klaas will discuss all pieces of DB2 that will storage like bufferpool, rid pool, sort pool etc. Can we control DB2's hunger?
What happens if we tweak the parameters? Klaas will discuss where to look for performance figures.