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Internet2 DSI Status: Distributed Storage Infrastructure Update

This article provides an update on the status of Internet2 Distributed Storage Infrastructure, discussing the single server model, replicated services, and the need for channel representation standards. It also highlights future plans for portable channel representation, fast file transfer, and international cooperation.

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Internet2 DSI Status: Distributed Storage Infrastructure Update

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  1. Internet2 Distributed Storage Infrastructure Status Micah Beck, Chair Network Storage WG Innovative Computing Laboratory University of Tennessee, Knoxville SC’99, Portland Orgeon 11/17/99

  2. I2-DSI Developers • UTK Computer Science Dept &Innovative Computing Laboratory • Christophe AchouiantzTerry Moore • Micah BeckJim Plank • Wael Elwasif Martin Swany • Patrik Johansson Rich Wolksi • UNC-CH School of Information and Library Science • Bert DempseyPaul Jones (MetaLab) • Rebecca Wang Zhiwei Xiao

  3. I2-DSI Sponsors • Cisco DNS redirection • Ericsson engineering effort • IBM large storage servers • Novell storage & directory servers • Starburst reliable multicast software • StorageTek large storage servers • Sun design collaboration

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

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

  6. I2-DSI Model: Replicated Services • Clients access nearby server • Everyone gets performance • Local resources implement a global service

  7. Current Server Deployment

  8. replicated core delegated server local users I2-DSI Service Architecture • Replication • Rsync+ • Resolution • Cisco Distributed Director • Delegation • Cache prefetch general users

  9. Current I2-DSI Channels

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

  11. I2-DSI Plans • Portable Channel Representation • Definition • Server & Authoring Tools • Fast File Transfer • International cooperation • CCIRN Working Group, APAN, TERENA • More channels, ambitous content

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