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Thursday, March 23 • 11:25am - 12:15pm
Ceph Snapshots: Diving into Deep Waters - Gregory Farnum, Red Hat

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Ceph includes snapshot technology in most of its projects: the base RADOS layer, RBD block devices, and CephFS filesystem. This talk will explore the implementation of each, with discussion about the consequences and causes of design choices, as well as alternatives which have been discussed and experimented with. If you’ve ever wondered
1) what RADOS "self-managed” snapshots are,
2) why we tell people to ignore "pool snapshots” every time they come up,
3) how CephFS can generate snapshots at arbitrary directories, and if it’s hard,
4) why hard links make *everything* terrible,
5) how cluster size expectations can result in very different system design choices,
then this is the talk for you!


Gregory Farnum

Principal Software Engineer, Ceph, Red Hat
Greg Farnum is a long-standing member of the core Ceph development group, having joined the project as the third full-time engineer after graduating from Harvey Mudd College in 2009. Now a Red Hat employee, Greg has done major work on all components of the Ceph ecosystem and currently... Read More →

Thursday March 23, 2017 11:25am - 12:15pm EDT
Thomas Paine AB