Hi, first of all nice Idea and Thanks for sharing! I am also thinking about an 3d-printet HDD-Tray for toolless HDD-Mounting (Topload). But i am not sure about the vibrations in a big case (30 HDDs) and if this cause a higher failrate longterm....yes in unraid just the hdd/hdd-pool spins up that contains the file. But in Paritycheck all HDDs are in working mode....
what do you / anybody else think about?