The CMS Online Cluster: IT for a Large Data Acquisition and Control Cluster

The CMS online cluster consists of more than 2000 computers running about 10000 application instances. These applications implement the control of the experiment, the event building, the high level trigger, the online database and the control of the buffering and transferring of data to the Central...

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Detalles Bibliográficos
Autores principales: Gerry, Bauer, Beccati, Barbara, Behrens, Ulf, Biery, Kurt, Brett, Angela, Branson, James, Cano, Eric, Cheung, Harry, Ciganek, Marek, Cittolin, Sergio, Coarasa, Jose Antonio, Deldicque, Christian, Dusinberre, Elizabeth, Erhan, Samim, Fortes Rodrigues, Fabiana, Gigi, Dominique, Glege, Frank, Gomez-Reino, Robert, Gutleber, Johannes, Hatton, Derek, Laurens, Jean-Francois, Loizides, Constantin, Lopez Perez, Juan Antonio, Meijers, Frans, Meschi, Emilio, Meyer, Andreas, Mommsen, Remi, Moser, Roland, O'Dell, Vivian, Oh, Alexander, Orsini, Luciano, Patras, Vaios, Paus, Christoph, Petrucci, Andrea, Pieri, Marco, Racz, Attila, Sakulin, Hannes, Sani, Matteo, Schieferdecker, Philipp, Schwick, Christoph, Serrano Margaleff, Josep Francesc, Shpakov, Dennis, Simon, Sean, Sumorok, Konstanty, Zanetti, Marco
Lenguaje:eng
Publicado: 2009
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/219/2/022002
http://cds.cern.ch/record/1199973
Descripción
Sumario:The CMS online cluster consists of more than 2000 computers running about 10000 application instances. These applications implement the control of the experiment, the event building, the high level trigger, the online database and the control of the buffering and transferring of data to the Central Data Recording at CERN. In this paper the IT solutions employed to fulfil the requirements of such a large cluster are revised. Details are given on the chosen network structure, configuration management system, monitoring infrastructure and on the implementation of the high availability for the services and infrastructure.

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