Beyond code generation: rethinking engineering productivity in the age of AI agents

DropboxApr 2, 2026

Improving storage efficiency in Magic Pocket, our immutable blob store

Here is a 2-3 sentence summary of the blog post: Dropbox's immutable blob store, Magic Pocket, experienced a significant increase in storage overhead due to a new service causing under-filled volumes, which were not efficiently reclaimed by the existing compaction strategy. To address this, Dropbox developed a multi-strategy approach to drive overhead back down below the previous baseline, combining a new compaction strategy for dealing with under-filled volumes with existing garbage collection and compaction processes. The new solution enables faster and more efficient reclamation of space, crucial for maintaining cost-effectiveness and scalability in an exabyte-scale storage system.

InfrastructureScale

1 min

Beyond code generation: rethinking engineering productivity in the age of AI agents

Introducing Nova, our internal platform for coding agents

Improving storage efficiency in Magic Pocket, our immutable blob store