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Storage System Design Case Studies

6 Storage case studies from Google with full breakdowns.

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Web Crawler
15 min readDistributed SystemsStorageSearch
Advanced+2▶ Mock
Calendar Service (Google Calendar)
6 min readSchedulingDistributed SystemsStorage
Intermediate+2▶ Mock
Word Store with Lexicographic Range Queries
4 min readStorageAlgorithmsDatabases
Intermediate▶ Mock
Pub/Sub System with Replay (Seek Back in Time)
3 min readMessagingDistributed SystemsStorage
Advanced▶ Mock
Street View Image Ingestion and Storage
4 min readMediaStorageData Pipelines
Advanced▶ Mock
Text-to-Video Generation Service (Sora)
6 min readAI / MLSchedulingDistributed Systems
Advanced▶ Mock

Frequently Asked Questions

What is Storage in system design?

Storage is a core system design topic covered in 43 case studies on InterviewSkool. It appears frequently in FAANG interviews, especially at Google, Amazon, and Meta.

How should I prepare Storage for system design interviews?

Study the case studies above, focusing on architecture trade-offs, scale estimates, and API designs. Practice explaining your decisions aloud — this is exactly what interviewers evaluate.

Practice with a Mock Interview

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