Flexible Data Placement Open Source Ecosystem - Implementation and Benefits

Explore a comprehensive technical conference talk from SDC 2023 that delves into Flexible Data Placement (FDP), the cutting-edge data placement technology for NVMe. Learn about the key differences between FDP and other NVMe features like Streams and ZNS, while understanding their implementation implications for host storage stacks and applications. Discover the integration efforts of FDP support across various Linux components, including QEMU emulation, different I/O paths (Linux Kernel I/O Passthru, SPDK), libraries (xNVMe), and tools (fio, nvme-cli). Examine the design decisions that facilitate early adoption without requiring major Linux kernel block layer modifications. Study real-world applications through examples like Cachelib and RocksDB, analyzing WAF behavior and evaluating engineering implementation efforts. Master the fundamentals of FDP technology, its potential benefits, and gain practical insights into integrating FDP into open source software stacks, with special emphasis on leveraging io-passthru for end-to-end solution validation prior to mainline Linux integration.