World's servers process 9.57ZB of data a year
Found on Computerworld on Sunday, 08 May 2011
Three years ago, the world's 27 million business servers processed 9.57 zettabytes, or 9,570,000,000,000,000,000,000 bytes of information.
Researchers at the School of International Relations and Pacific Studies and the San Diego Supercomputer Center at the University of California, San Diego, estimate that the total is equivalent to a 5.6-billion-mile-high stack of books stretching from Earth to Neptune and back to Earth, repeated about 20 times.
Three years. That's pretty ancient data in the IT. Anyway, this amount of data is manageable: ZFS allows 256 zettabytes per zpool, so there would still be some space left. Even if the zpool gets filled, no problem: a ZFS system can have up to 2^64 zpools (that are 8,446,744,073,709,551,616 zpools, or 2,162,366,482,869,645,213,696 zettabytes).