What does ZFS stand for?
Originally, ZFS was an acronym for “Zettabyte File System.” The largest SI prefix we liked was ‘zetta’ (‘yotta’ was out of the question). Since ZFS is a 128-bit file system, the name was a reference to the fact that ZFS can store 256 quadrillion zettabytes (where each ZB is 270 bytes). Over time, ZFS gained a lot more features besides 128-bit capacity, such as rock-solid data integrity, easy administration, and a simplified model for managing your data.
