SINN01 Technical Workshop Oldenburg 5-7 Dec 2001 Mirroring Status & Techniques Thomas Severiens Institute for Science Networking Carl von Ossietzky Universität.

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SINN01 Technical Workshop Oldenburg 5-7 Dec 2001 Mirroring Status & Techniques Thomas Severiens Institute for Science Networking Carl von Ossietzky Universität Oldenburg

SINN01 Technical Workshop Oldenburg 5-7 Dec Status: PhysNet Mirroring  System-independent skript  Self-explaining installation  Institutionalization (“mirror at...”)  Auto-Updating (Skript is part of the mirror)  File-Lists  Pull of all files everytime  Update dates get lost...

SINN01 Technical Workshop Oldenburg 5-7 Dec Status: PhysNet Mirroring

SINN01 Technical Workshop Oldenburg 5-7 Dec Better (?) Solutions  Incremental Mirroring  only newer files are transfered  check for last_modified and file_size  transfer only of HTTP-Header  Removal of old files  security!!!

SINN01 Technical Workshop Oldenburg 5-7 Dec Better (?) Solutions  Distributed system  depending on transfer rates  calculation of network topology

SINN01 Technical Workshop Oldenburg 5-7 Dec Distributed Systems

SINN01 Technical Workshop Oldenburg 5-7 Dec Distributed Systems

SINN01 Technical Workshop Oldenburg 5-7 Dec Distributed Systems

SINN01 Technical Workshop Oldenburg 5-7 Dec Distributed Systems