Igor Ostapenko
Igor Ostapenko is a contributor to FreeBSD and OpenZFS with extensive software development experience across various domains, including systems for manipulating and testing navigation devices, enterprise solutions for optimizing business processes, reverse-engineering, and B2B/B2C startups.
Klara Inc.
Session
OpenZFS is often discussed in terms of features such as checksumming, copy-on-write, and snapshots. But the real story lies in the on-disk structures that make these capabilities possible. This talk takes a bottom-up journey through OpenZFS, from block pointers and dnodes through object sets, uberblocks, and vdev labels, exploring how these implementation details translate into data integrity, consistency, recoverability, and operational simplicity.