Integrating NVMe Disks in HopsFS (HDFS) (logicalclocks.com)

"HDFS and S3 are designed around large blocks (optimized to overcome slow random I/O on disks), while new NVMe hardware supports fast random disk I/O (and potentially small blocks sizes). "

Interesting solution presented here - keep the block size constant, but put the small files on NVMe disks.

super cool. The world needs more success stories for NVM

Disclaimer, one of the authors here. You can see a video with discussion of the NVMe support in HopsFS in this Spark Summit talk:

https://www.youtube.com/watch?v=tx6HyoUYGL0