Xsigo, the I/O specialist for intensively virtualized environments, has upped the ante with its I/O Director to 40 gigabits per second (Gbps) I/O per physical server. It was previously limited to 20 Gbps. That means 15 virtual machines (VMs) running on a server could be connected to both networking and storage through I/O Director, with one mission-critical VM assigned a high allotment of 10 Gbps of bandwith, while the others would still have over 2 Gbps each, with all traffic traveling over an...