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1.
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IT Service Management at CERN: Data Centre and Service monitoring and status
/ Martín Clavo, David (CERN) ; Cremel, Nicole (CERN) ; Delamare, Catherine (CERN) ; Garcia Cuervo, Jorge (CERN) ; Moller, Mats (CERN) ; Salter, Wayne (CERN) ; Toteva, Zhechka (CERN)
The Information Technology department at CERN has been using ITIL Service Management methodologies [1] and ServiceNow since early 2011. In recent years, several developments have been accomplished regarding the data centre and service monitoring, as well as service status reporting. [...]
2019 - 8 p.
- Published in : EPJ Web Conf. 214 (2019) 08021
Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.08021
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2.
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Challenges, solutions and lessons learnt in 7 years of Service Management at CERN
/ Martín Clavo, David (CERN) ; Brugger, Barbara (CERN) ; Cremel, Nicole (CERN) ; Delamare, Catherine (CERN) ; Fernandez Gonzalez, Isabel (CERN) ; Lienard, Eric (CERN) ; Martens, Reinoud (CERN) ; Moller, Mats (CERN) ; Salter, Wayne (CERN) ; Toteva, Zhechka (CERN) et al.
CERN has been using ITIL Service Management methodologies and ServiceNow since early 2011. Initially a joint project between just the Information Technology and the General Services Departments, now most of CERN is using this common methodology and tool, and all departments are represented totally or partially in the CERN Service Catalogue. [...]
2019 - 8 p.
- Published in : EPJ Web Conf. 214 (2019) 08003
Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.08003
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3.
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Securing and sharing Elasticsearch resources with Read-onlyREST
/ Schwickerath, Ulrich (CERN) ; Saiz, Pablo (CERN) ; Toteva, Zhechka (CERN)
In early 2016 CERN IT created a new project to consolidate and centralise Elasticsearch instances across the site, with the aim to offer a production quality new IT services to experiments and departments. We present the solutions we adapted for securing the system using open source only tools, which allows us to consolidate up to 20 different use cases on a single Elasticsearch cluster..
2019 - 7 p.
- Published in : EPJ Web Conf. 214 (2019) 08032
Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.08032
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4.
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Notifications workflows using the CERN IT central messaging infrastructure
/ Toteva, Zhechka (CERN) ; Lukic, Darko (Ecole Polytechnique, Lausanne) ; Cons, Lionel (CERN)
In the CERN IT agile infrastructure (AI), Puppet, the CERN IT central messaging infrastructure (MI) and the Roger application are the key constituents handling the configuration of the machines of the computer centre. The machine configuration at any given moment depends on its declared state in Roger and Puppet ensures the actual implementation of the desired configuration by running the Puppet agent on the machine at regular intervals, typically every 90 minutes. [...]
2019 - 8 p.
- Published in : EPJ Web Conf. 214 (2019) 08029
Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.08029
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5.
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6.
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Migration of the CERN IT Data Centre Support System to ServiceNow
/ Alonso, R Alvarez (CERN) ; Arneodo, G (CERN) ; Barring, O (CERN) ; Bonfillou, E (CERN) ; Santos, M Coelho dos (CERN) ; Dore, V (CERN) ; Lefebure, V (CERN) ; Fedorko, I (CERN) ; Grossir, A (CERN) ; Hefferman, J (CERN) et al.
The large potential and flexibility of the ServiceNow infrastructure based on 'best practises' methods is allowing the migration of some of the ticketing systems traditionally used for the monitoring of the servers and services available at the CERN IT Computer Centre. This migration enables the standardization and globalization of the ticketing and control systems implementing a generic system extensible to other departments and users. [...]
2014 - 6 p.
- Published in : J. Phys.: Conf. Ser. 513 (2014) 062032
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.062032
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7.
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CMS data and workflow management system
/ Fanfani, A (Bologna U. ; INFN, Bologna) ; Bonacorsi, B (Bologna U. ; INFN, Bologna) ; Bacchi, W (Bologna U. ; INFN, Bologna) ; Codispoti, G (Bologna U. ; INFN, Bologna) ; De Filippis, N (INFN, Bari) ; Pompili, A (INFN, Bari) ; My, S (INFN, Bari) ; Abbrescia, M (INFN, Bari) ; Maggi, G (INFN, Bari) ; Donvito, G (INFN, Bari) et al.
CMS expects to manage many tens of peta bytes of data to be distributed over several computing centers around the world. The CMS distributed computing and analysis model is designed to serve, process and archive the large number of events that will be generated when the CMS detector starts taking data. [...]
2008
- Published in : 10.1142/9789812819093_0076
In : 10th ICATPP Conference on Astroparticle, Particle, Space Physics, Detectors and Medical Physics Applications, Villa Olmo, Como, Italy, 8 - 12 Oct 2007, pp.441-445
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8.
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Service management at CERN with Service-Now
/ Toteva, Z (CERN) ; Alvarez Alonso, R (CERN) ; Alvarez Granda, E (CERN) ; Cheimariou, M E (CERN) ; Fedorko, I (CERN) ; Hefferman, J (CERN) ; Lemaitre, S (CERN) ; Martin Clavo, D (CERN) ; Martinez Pedreira, P (CERN) ; Pera Mira, O (CERN)
The Information Technology (IT) and the General Services (GS) departments at CERN have decided to combine their extensive experience in support for IT and non-IT services towards a common goal - to bring the services closer to the end user based on Information Technology Infrastructure Library (ITIL) best practice. The collaborative efforts have so far produced definitions for the incident and the request fulfilment processes which are based on a unique two-dimensional service catalogue that combines both the user and the support team views of all services. [...]
2012 - 7 p.
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.062022
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9.
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Commissioning and performance of the CMS pixel tracker with cosmic ray muons
/ CMS Collaboration
The pixel detector of the Compact Muon Solenoid experiment consists of three barrel layers and two disks for each endcap. The detector was installed in summer 2008, commissioned with charge injections, and operated in the 3.8 T magnetic field during cosmic ray data taking. [...]
arXiv:0911.5434; CMS-CFT-09-001; CMS-CFT-09-001.-
Geneva : CERN, 2010 - 37 p.
- Published in : JINST 5 (2010) T03007
Fulltext: arXiv:0911.5434 - PDF; fermilab-pub-10-144-cms - PDF; IOP Open Access article: PDF;
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10.
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Measurement of the muon stopping power in lead tungstate
/ CMS Collaboration
A large sample of cosmic ray events collected by the CMS detector is exploited to measure the specific energy loss of muons in the lead tungstate (PbWO$_4$) of the electromagnetic calorimeter. The measurement spans a momentum range from 5 GeV/$c$ to 1 TeV/$c$. [...]
arXiv:0911.5397; CMS-CFT-09-005; CMS-CFT-09-005.-
2010 - 31 p.
- Published in : JINST 5 (2010) P03007
Fulltext: fermilab-pub-10-146-cms - PDF; arXiv:0911.5397 - PDF; IOP Open Access article: PDF;
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