Hi, I shared my knowledge about the bugs which my team encountered and two proposals to improve the official QA process in Ceph Virtual. https://www.youtube.com/watch?v=ENvDbgX4n38 https://speakerdeck.com/sat/revealing-bluestore-corruption-bugs-in-containerized-ceph-clusters One of my proposals depends on the assumption that the official QA doesn't use HDD. It's because my team revealed many bugs in OSD creation/restart only in HDD-based clusters. Could you tell me whether my assumption is correct or not? Thanks, Satoru