The last decade or so has seen rapid research and developments in computer technology, particularly the advent and proliferation of Internet and wireless networks, that has given way to a clear convergence of previously divert fields such as computer networking, architecture and storages. As a result, architectural designs are increasingly made more network-aware, if not network-centric; more classic architecture ideas are being adopted to network devices and protocols and vice versa; data grids and high-speed networks are making data ever more omnipresent and indeed the "life-blood" of computing and the main asset of any organization. This workshop brings together researchers and practitioners from academia and industry to discuss cutting edge research on networking (wireline and wireless), high-performance computer architecture, and parallel and distributed data storage technologies. By discussing ongoing research, IWNAS 2006 exposes participants to the most recent developments in these interdisciplinary areas.