Jeff Bonwick invented and led development of the ZFS file system, which powers Oracle Corporation's ZFS storage products as well as startups including Nexenta, Delphix, Joyent, and Datto, Inc. Bonwick is also the inventor of slab allocation, which is used in many operating systems including MacOS and Linux, and the LZJB compression algorithm.
Bonwick cofounded DSSD with Mike Shapiro, now a division of EMC Corporation and serves as chief technical officer (CTO). He co-invented DSSD's system hardware architecture and Flood software stack. He developed DSSD's whole-system simulator, which enabled the team to explore hundreds of possible hardware topologies and software algorithms.
His previous roles include Sun Fellow, Sun storage CTO, and Oracle vice president.