Paper Title: PoseidonOS: An Innovative Open Source Storage System

Paper Abstract: With the popularity of NVMe SSDs, the NVMe-oF interface is becoming important in disaggregated datacenters. However, it is non-trivial to fully utilize large numbers of high-performance and high-capacity NVMe SSDs, especially for PCIe Gen5. In this talk, we will share the lessons we have learned when we developed PoseidonOS, which is an NVMe-oF reference solution that was open-sourced last year. In particular, we will introduce its essential features, and our choices for an NVMe-oF storage system as a building block of a disaggregated datacenter. We will also address the challenges in developing libraries for the POS software stack, and the design principles applied in order to build libraries which are powerful but also simple to use. Also included will be a discussion regarding how to leverage PCIe Gen5 systems in NVMe-oF storage, as well as a test tool for NVMe-oF systems called Trident. Trident enables using simple test scripts to test complex scenarios, including use cases wherein the details are handled by configuration-based core libraries.

Paper Author: Sung Kyu Park, , Samsung Electronics

Author Bio: