Deduplicating backup system
Your task
Design a deduplicating backup-and-restore system for an enterprise fleet: thousands of machines back up nightly, most data is unchanged or duplicated across machines (OS files, shared assets), and you need space-efficient storage, fast incremental backups, and reliable point-in-time restore of any machine. How do you deduplicate, store, and restore, and what breaks at scale?
It covers
- Dedup backup
- Content addressed
- Restore