Alibaba Cloud Tair KVCache: 3FS-based enterprise KVCache storage pipeline for agent-style inference
Alibaba Cloud's Tair KVCache team and storage hardware-software integration team upgraded the open-source 3FS file system to support enterprise KVCache storage for AI inference.The work optimized RDMA load balancing and small I/O, added a user-space persistence engine, introduced GPU Direct RDMA and multi-tenant isolation, and built a Kubernetes Operator for one-click deployment, self-healing, elastic scaling, and monitoring.The solution was integrated with SGLang, vLLM, and Tair KVCache Manager to improve long-context and agent-style inference performance.