Baidu Intelligent Cloud Tech Hub

Aug 27, 2026 · Big Data

PFS L3 Architecture Deep Dive: Redesigning Parallel File Storage for AI Production Workloads

Baidu's PFS L3 rearchitects parallel file storage for AI production loads with a hybrid data engine (Aries + BlockServer), scalable metadata foundation (MetaDB), high-performance client (RapidFC), RDMA network tuning, transparent tiering to object storage, and AgenticFS for multi-tenant Agent workloads, proven in RL training saving 30k GPU-hours weekly.