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Xrootd Back To The Future

Xrootd Back To The Future. Andrew Hanushevsky SLAC National Accelerator Laboratory. WLCG Data/Storage TEG Meeting January 24-25, 2011 NIKHEF, Amsterdam, Netherlands. The Project Vision. Provide data a ccess in a manner which is Affordable

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Xrootd Back To The Future

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  1. XrootdBack To The Future Andrew Hanushevsky SLAC National Accelerator Laboratory WLCG Data/Storage TEG Meeting January 24-25, 2011 NIKHEF, Amsterdam, Netherlands

  2. The Project Vision • Provide data access in a manner which is • Affordable • Minimize hardware, software and human requirements • Highly performant • Minimize use of CPU, disk, memory and network resources • Robust • Minimize failure modes and bottlenecks • Secure • Support widely used authentication & authorization models • Scalable • Open ended scale up and scale out technology • Supportable • Collaborative model with a straight-forward architecture Storage/Data TEG Face To Face

  3. Vision & Experiments • The vision dovetails with experimental concerns • This is should be expected when one considers that… • Xrootd was developed from the start with • Experimental involvement during the development process • It continues to this day • The project is driven by experimental feedback • E.G. recent additions to the monitoring feature set driven by CMS • The project is well aware of the bottom line • Experiments don’t care how analysis is done as long as • The analysis gets done in a timely and efficient manner • I.E. it’s all about high energy physics not the computer science Storage/Data TEG Face To Face

  4. Vision & The Future • Xrootd is an extremely well hardened system • In production use for over 10 years in many environments • The number of new bugs is relatively small • Maintenance effort is very manageable • Our primary goal is to evolve what we have • To meet evolving experimental operating modes • The architecture is well positioned to do that • The plug-in model has proven to be a god-send • The vision and platform form a sound foundation • This serves us well to meet future requirements Storage/Data TEG Face To Face

  5. Some Things We See Comming • Solidifying the federated storage model • Make it even easier with a far more predictable outcome • More monitoring • The right information at the right time to the right places • More storage management features • Simple multi-tiered storage • We already do it but the documentation is sparse • Automatic storage rebalancing • Very sensitive to what underlying file system is used • Others as they bubble up in importance Storage/Data TEG Face To Face

  6. Conclusion • The next 3 years will be exciting • Nothing is really caste in concrete • The project is positioned to be highly adaptable • In a way that does not jeopardize existing production • Cluster IP is uniquely applicable elsewhere • To new and evolving technology and protocols • The architecture and software can work in many areas • The collaboration is expanding • Currently CERN, Duke, JINR, SLAC, and UCSD Storage/Data TEG Face To Face

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