Pluggable modules communicate via a switch fabric dataplane accessible via a backplane. Various embodiments are comprised of varying numbers and arrangements of the pluggable modules in accordance with a system architecture that provides for provisioning virtual servers and clusters of servers from underlying hardware and software resources. The system architecture is a unifying solution for applications requiring a combination of computation and networking performance. Resources may be pooled, scaled, and reclaimed dynamically for new purposes as requirements change, using dynamic reconfiguration of virtual computing and communication hardware and software.