Lets say I haven’t managed to corrupt my system and I had to hard reset my system a few times. I am using an orange Pi 5 Plus. I sometimes have the feeling the tiny fan might give up any minute and I will have to buy a replacement board. My setup is designed to deal with that. Setting up a new one would take just a few hours. Install OS, install some basic software, mount the drives and the nodes should be up and running again. Both options hashstore and memtable with an HDD for the metadata should allow that. I am not moving the metadata to the SSD because I have too many drives that would depend on a single SSD. I expect the SSD to die one day and I would prefer to get my nodes up and running in just a few hours. That means the SSD is for logfiles and stuff but not for metadata. And it also looks like memtable doesn’t care that it is running on spinning metal.