DescriptionThe IO500 is quickly becoming the de facto benchmarking standard for HPC storage. Developed three years ago, the IO500 has released four official lists so far. A BoF highlight is the presentation of the fifth IO-500 list. The general purpose of this BoF is to foster the IO500 and VI4IO communities to ensure forward progress towards the common goals of creating, sharing, and benefiting from a large corpus of shared storage data. We also serve as a repository of detailed information about production storage system architectures over time as a knowledge base for other researchers and system designers to use.