I have honestly no idea, other than I know that the grains are not permanent resident processes. IOW when they are not in use, they spin down and do not active

I have honestly no idea, other than I know that the grains are not permanent resident processes. IOW when they are not in use, they spin down and do not actively consume resources other than disk. I think the grain runs in one place, I think to use the container analog it would be one container, but as a point of clarification I believe that it is not using one of the container runtimes like docker or rkt that you will be familiar with, but uses its own sandboxing instead. I have not tried running the newly opened up Oasis backend so I can't really speak toward how it works. My experience with a single server running Sandstorm has been good, painless automatic upgrades, I would expect from what I know about this team, that since it's their dogfood they made it taste good.