Internet 2 Distributed Storage Infrastructure Status Micah Beck

Internet 2 Distributed Storage Infrastructure Status Micah Beck, Chair Network Storage WG Innovative Computing Laboratory University of Tennessee, Knoxville SC’ 99, Portland Orgeon 11/17/99

I 2 -DSI Developers • UTK Computer Science Dept & Innovative Computing Laboratory – Christophe Achouiantz – Micah Beck – Wael Elwasif – Patrik Johansson Terry Moore Jim Plank Martin Swany Rich Wolksi • UNC-CH School of Information and Library Science – Bert Dempsey – Rebecca Wang Paul Jones (Meta. Lab) Zhiwei Xiao

I 2 -DSI Sponsors • • Cisco Ericsson IBM Novell Starburst Storage. Tek Sun DNS redirection engineering effort large storage servers storage & directory servers reliable multicast software large storage servers design collaboration

Single Server Model • High performance locally • Unacceptable performance across commodity backbone

Relying on Wide Area Qo. S • High performance access with reserved bandwidth • Essential for real-time communication • Technically difficult, expensive, not generally available

I 2 -DSI Model: Replicated Services • Clients access nearby server • Everyone gets performance • Local resources implement a global service

Current Server Deployment

I 2 -DSI Service Architecture • Replication general users – Rsync+ • Resolution – Cisco Distributed Director • Delegation – Cache prefetch replicated core delegated server local users

Current I 2 -DSI Channels CPAN The Comprehensive Perl Archive Network. Docsouth Documenting the American South collections (UNCCH AAL) High MPEG High bandwidth MPEG-1 videos for local streaming delivery Meta. Lab Linux A comprehensive Linux repository. (Meta. Lab) Mars'98 Images from the Mars'98 Polar Lander. (NASA JPL) Netlib Mathematical software, papers, and databases. (UTK ICL) Normos The Normos Internet engineering standards repository. (Viagenie) Open Video content for the research community. (UNC-CH IDL)

The Need for Channel Representation Standards locally interpreted files replicated files Origin Server Replicated Server proxy Web clients Standard-based Web traffic Replication of source files

I 2 -DSI Plans • Portable Channel Representation – Definition – Server & Authoring Tools • Fast File Transfer • International cooperation – CCIRN Working Group, APAN, TERENA • More channels, ambitous content