RethinkDB started as an optimized storage engine for SSDs and the current version is still using the engine. I'm pretty sure someone that worked on the original

RethinkDB started as an optimized storage engine for SSDs and the current version is still using the engine. I'm pretty sure someone that worked on the original engine will chime in with more details, but afaik it involved everything from a specialized log-structured disk format and down to kernel hacking. You'll probably find a bit more details in this post old post http://www.rethinkdb.com/blog/on-trim-ncq-and-write-amplification/ http://www.rethinkdb.com/blog/on-trim-ncq-and-write-amplific...