Dropbox Redesigns Compaction to Reclaim Space from Underfilled Storage Volumes (opens in new tab)

Dropbox recently explained how it improved storage efficiency in Magic Pocket, the company's internal immutable blob store for storing user files at scale, by redesigning compaction strategies to reclaim space from severely underfilled storage volumes. The system now periodically reorganizes valid data into new volumes, allowing old, partially used ones to be cleared and reused. By Renato Losio