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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 3 CONTRIBUTI IN ATTI DI CONVEGNO (Proceedings)
  4. 3.01 Contributi in Atti di convegno
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28094
Title: Implementation and use of a highly available and innovative IaaS solution: the Cloud Area Padovana
Authors: Aiftimiei, Cristina
Andreetto, Paolo
BERTOCCO, SARA 
Biasotto, Massimo
Dal Pra, Stefano
Costa, Fulvia
Crescente, Alberto
Dorigo, Alvise
Fantinel, Sergio
Fanzago, Federica
Frizziero, Eric
Gulmini, Michele
Michelotto, Michele
Sgaravatto, Massimo
Traldi, Sergio
Venaruzzo, Massimo
Verlato, Marco
Zangrando, Lisa
Issue Date: 2015
Journal: JOURNAL OF PHYSICS. CONFERENCE SERIES 
Volume: 21st International Conference on Computing in High Energy and Nuclear Physics (CHEP2015)
Number: 664
Abstract: While in the business world the cloud paradigm is typically implemented purchasing resources and services from third party providers (e.g. Amazon), in the scientific environment there's usually the need of on-premises IaaS infrastructures which allow efficient usage of the hardware distributed among (and owned by) different scientific administrative domains. In addition, the requirement of open source adoption has led to the choice of products like OpenStack by many organizations. We describe a use case of the Italian National Institute for Nuclear Physics (INFN) which resulted in the implementation of a unique cloud service, called ’Cloud Area Padovana’, which encompasses resources spread over two different sites: the INFN Legnaro National Laboratories and the INFN Padova division. We describe how this IaaS has been implemented, which technologies have been adopted and how services have been configured in high-availability (HA) mode. We also discuss how identity and authorization management were implemented, adopting a widely accepted standard architecture based on SAML2 and OpenID: by leveraging the versatility of those standards the integration with authentication federations like IDEM was implemented. We also discuss some other innovative developments, such as a pluggable scheduler, implemented as an extension of the native OpenStack scheduler, which allows the allocation of resources according to a fair-share based model and which provides a persistent queuing mechanism for handling user requests that can not be immediately served. Tools, technologies, procedures used to install, configure, monitor, operate this cloud service are also discussed. Finally we present some examples that show how this IaaS infrastructure is being used.
Conference Name: 21st International Conference on Computing in High Energy and Nuclear Physics (CHEP 2015)
Conference Place: Okinawa, Japan
Conference Date: April 13-17, 2015
URI: http://hdl.handle.net/20.500.12386/28094
URL: https://iopscience.iop.org/article/10.1088/1742-6596/664/2/022016
ISSN: 1742-6588
DOI: 10.1088/1742-6596/664/2/022016
Bibcode ADS: 2015JPhCS.664b2016A
Fulltext: open
Appears in Collections:3.01 Contributi in Atti di convegno

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