8 billion pfft
That's not even big enough for my porn collection.
I have a couple friends at DDN who recently announced(I think) something that can go to 32 trillion objects (up to 1 trillion on up to 256 servers).
"This includes object retrieval of 256 million objects per second and throughput of over 10 terabytes per second with an object retrieval latency of less than 50 milliseconds."
Now that can hold my collection.