They both support k8s, juicefs with either just a hostpath (not what i’d use) or the JuiceFS CSI Driver. Linstore has an operator which uses drbd and provides it too.
If you know of storage classes which are useful for this deployment (or just ones you want to talk about in general) then go on. From what I’m seeing in this thread I’ll probably have to deploy all options that seem reasonable and test them myself anyways.
I heard that ceph lives and dies with the network hardware. Is a slow internet connection even usable when the docs want 10 gbit/s networking between nodes?