Being Afraid—How Paranoia at Dropbox Protects Your Data
David Mah, Dropbox
Dropbox is built around our users' trust in us to not lose their data, and the engineering challenges to preserve this are immense. We leverage external managed storage vendors in order to help us solve many of these challenges, but we've recently been transitioning some customer data into a storage platform designed for exabyte-scale that is developed from scratch and operated in-house by Dropbox engineers.
A crucial consideration of building this new system is the mitigation of accidental or intentional deletion and corruption through entropy, and we've taken special care to build defenses against these risks. In this talk we will describe the system's inherent failure domains and the operations infrastructure required to maintain strong durability. Attendees should leave the talk with a healthy dose of paranoia for their own systems and practical strategies for mitigating failure in inherently failure-prone infrastructure.
View the full SREcon15 Program at https://www.usenix.org/conference/srecon15/program