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Storage System Design Case Studies

11 Storage case studies from Amazon with full breakdowns.

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Instagram
17 min readDistributed SystemsMediaSearch
Advanced+2▶ Mock
Web Crawler
15 min readDistributed SystemsStorageSearch
Advanced+2▶ Mock
Core Dump Collection and Crash Analysis System
5 min readObservabilityStorageData Pipelines
Intermediate▶ Mock
Centralized Logging System (ELK / Splunk)
6 min readObservabilityData PipelinesSearch
Intermediate+1▶ Mock
Globally Consistent (Linearizable) Metadata Service
4 min readDistributed SystemsDatabasesStorage
Advanced▶ Mock
IoT / Sensor Telemetry Pipeline
7 min readIoTData PipelinesStorage
Intermediate+1▶ Mock
Large File Upload and Processing Pipeline
7 min readStorageData PipelinesSecurity
Intermediate▶ Mock
Metrics Monitoring and Alerting System
7 min readObservabilityData PipelinesStorage
Advanced+3▶ Mock
Object Storage Service (Amazon S3) with Deduplication
6 min readStorageDistributed SystemsAPI Design
Advanced▶ Mock
Offline Multi-Device E-Book Reader (Kindle-style)
3 min readStorageAPI DesignCollaboration
Intermediate▶ Mock
Relational Database Internals (Write Path and Recovery)
7 min readDatabasesStorageDistributed 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.

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