Research Papers in Physics and Astronomy

 

Date of this Version

2014

Citation

20th International Conference on Computing in High Energy and Nuclear Physics (CHEP2013). Journal of Physics: Conference Series 513 (2014) 042005 doi:10.1088/1742-6596/513/4/042005

Comments

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.

Abstract

CMS is in the process of deploying an Xrootd based infrastructure to facilitate a global data federation. The services of the federation are available to export data from half the physical capacity and the majority of sites are configured to read data over the federation as a back-up. CMS began with a relatively modest set of use-cases for recovery of failed local file opens, debugging and visualization. CMS is finding that the data federation can be used to support small scale analysis and load balancing. Looking forward we see potential in using the federation to provide more flexibility in the location workflows are executed as the difference between local access and wide area access are diminished by optimization and improved networking. In this presentation we discuss the application development work and the facility deployment work, the use-cases currently in production, and the potential for the technology moving forward.

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