So I'm fairly new to large-scale architectures. We're currently using linode instances for our project, but we're brainstorming about scaling.

We need a file store system than can deliver ~50mb folders (user data) to our computing instances in a reasonable amount of time (<20 sec), and scale to 10000+ total users, and perhaps 100+ simultaneous transfers. We are also unsure whether to network mount (sshfs/nfs) or just do a full transfer store->instance at the beginning and rsync instance-> store at the end.

I've experimented with SSH-FS between our little Linode instances but it seems to be bottlenecked at 15mb/s total bandwith, which wouldn't do under 10+ transfer stress let alone scale v. large. I also tried to investigate NFS but couldn't get it working but have little hope that it'll do within our linode network.

Are there tools on other cloud providers that match our needs? Should we be mounting, or should we be transferring?

Thanks very much!