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Apr 15 – 19, 2013
CNAF Bologna (Italy)
Europe/Rome timezone

The CMS openstack, opportunistic, overlay, online-cluster Cloud (CMSooooCloud)

Apr 18, 2013, 9:00 AM
CNAF Bologna (Italy)

CNAF Bologna (Italy)

Presentation Grid, cloud and virtualization Grids, clouds, virtualisation


Wojciech Andrzej Ozga (AGH University of Science and Technology (PL))


The CMS online cluster consists of more than 3000 computers. During the normal work it is used for the Data Acquisition of the CMS experiment at CERN. The sofisticated design and the dedicated software runned on the farm allows to collect up to 20TBytes of data per day. Considering the huge amount of computing resources under control of the HLT farm, an Openstack cloud layer has been deployed on part of the cluster (13000 cores) allowing the opportunistic usage of the cluster. We will present the benefits of virtualization technology taking as an example the CMSooooCloud. The architecture choices, the usage of openstack cloud controller and openvswitch will be shown. The presentation will cover the design and performance aspects of the current installation.

Primary author

Wojciech Andrzej Ozga (AGH University of Science and Technology (PL))


Andre Georg Holzner (Univ. of California San Diego (US)) Andrea Petrucci (CERN) Andrei Cristian Spataru (CERN) Dr Attila Racz (CERN) Aymeric Arnaud Dupont (CERN) Carlos Nunez Barranco Fernandez (CERN) Christian Deldicque (CERN) Christian Hartl (CERN) Christoph Paus (Massachusetts Inst. of Technology (US)) Christoph Schwick (CERN) Christopher Colin Wakefield (Staffordshire University (GB)) Dominique Gigi (CERN) Emilio Meschi (CERN) Fabian Stoeckli (Massachusetts Inst. of Technology (US)) Frank Glege (CERN) Frans Meijers (CERN) Gerry Bauer (Massachusetts Inst. of Technology (US)) Dr Giovanni Polese (University of Wisconsin (US)) Hannes Sakulin (CERN) James Gordon Branson (Univ. of California San Diego (US)) Dr Jose Antonio Coarasa Perez (CERN) Konstanty Sumorok (Massachusetts Inst. of Technology (US)) Lorenzo Masetti (CERN) Luciano Orsini (CERN) Dr Marc Dobson (CERN) Marco Pieri (Univ. of California San Diego (US)) Matteo Sani (Univ. of California San Diego (US)) Olivier Chaze (CERN) Olivier Raginel (Massachusetts Inst. of Technology (US)) Petr Zejdl (CERN) Dr Remi Mommsen (Fermi National Accelerator Lab. (US)) Robert Gomez-Reino Garrido (CERN) Samim Erhan (Univ. of California Los Angeles (US)) Sebastian Bukowiec (CERN) Sergio Cittolin (Univ. of California San Diego (US)) Srecko Morovic (Institute Rudjer Boskovic (HR)) Ulf Behrens (Deutsches Elektronen-Synchrotron (DE)) Vivian O'Dell (Fermi National Accelerator Laboratory (FNAL))

Presentation materials