Since 2016, we’ve built, deployed, and scaled a new BLOB storage platform at Meta, called Manifold. Manifold builds on existing BLOB storage infrastructure, but provides a richer, higher-level, general purpose API, and thereby enables teams using storage at Meta move faster. Moreover, by creating a stronger abstraction between storage consumers and storage infrastructure, Manifold enables storage infrastructure teams to move faster too, but realizing this vision requires migrating thousands of production workloads totaling exabytes of production data, and rebuilding multiple systems. We’ll describe our approach.