I have 7 Mac Pros and iMacs that need to be connected to the same storage. I'm doing non MPI-based numerical modeling so the transfer rates have to be fast but not infiniband fast. I'm considering a setup with a Promise Pegasus thunderbolt RAID connected to a Mac Mini running Lion server for Access controll/Roaming homer directories. The Mac Pros and iMacs would the be connected via 1Gb ethernet.
My question is where the bottlenecks in this setup would be. The server software/hardware? The network? What else am I forgetting?