Storage Engines

The component that actually manages data on disk and in memory.

🎯 Goals

• Differentiate database front-end (SQL, API) from storage engine
• Learn when different engines make sense

📚 Checklist

• Understand page/segment-based storage vs log-structured storage
• Compare high-level B-Tree engines vs LSM-tree engines
• Map engines to workloads (OLTP vs OLAP)

🔗 Related

• [[B-Tree vs LSM]]
• [[Buffer Pools]]
• [[WAL Internals]]