Xiaolei Talks DB

Aug 13, 2026 · Databases

How TiDB’s New Tiered Storage Architecture Cuts Costs and Boosts Performance

TiDB’s next‑generation tiered storage separates hot data on local SSDs from cold data on object storage, using multi‑tree LSM, segment caching, and IA Manager to reduce storage costs by up to 50 % while preserving low latency for frequent accesses and providing clear migration and monitoring guidelines.