Well, not sure if there is googolbyte measurement, I said googol is the biggest number that we have the right word for it.

Googol:
10000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000 0
EDIT: oh wow, KWWH cant deal with googols

EDIT2: I don't think all the warez is even close to yottabytes, simple reason for that is, that before last 10-11 years, everything was size of CD and smaller as you go further back in past, however, it is possible that in next 10-11 years we reach that number

EDIT3: Hm, if we count all possible copies around the world, yes, we passed yottabytes for sure