TU Berlin

Department of Telecommunication SystemsSLA4D-Grid - Service Level Agreements for the D-Grid

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SLA4D-Grid - Service Level Agreements for the D-Grid

Project goals and benefits

The research project SLA4D-Grid aims to realize a Service Level Agreement (SLA) layer for the D-Grid. This layer will, as shown in the figure, reside between the D-Grid middleware (gLite, Globus, UNICORE) and user level and will be integrated with the already existing infrastructure (e.g. by connecting to selected D-Grid core services). Communities can use the SLA layer either with specific clients or via API. It is a value-added service which has no impact on the present D-Grid utilization, does not interfere with its operation for communities having no SLA needs and thus enables a seamless transition of SLA4D-Grid results into normal operation.


The SLA layer guarantees individual users, entire D-Grid communities and D-Grid ressource providers cost-effectiv ressource use. For this purpose, QoS requests and corresponding offers are brought together mandatory by SLAs. Using the SLA layer and additional D-Grid services like Monitoring or Accounting, SLAs can be created automatically, negotiated and monitored regarding their adherence. In that way, academic as well as industrial users can use D-Grid efficiently according to their business model.


  • Bayerische Akademie der Wissenschaften – Leibniz-Rechenzentrum
  • con terra – Gesellschaft für Angewandte Informationstechnologie mbH
  • Forschungszentrum Jülich GmbH, Jülich Supercomputing Centre
  • Forschungszentrum Karlsruhe GmbH, Steinbuch Centre for Computing
  • Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V., Institut SCAI, Abteilung Bioinformatik
  • Leibniz Universität Hannover, Regionales Rechenzentrum für Niedersachsen
  • Rheinische Friedrich-Wilhelms-Universität Bonn, Institut für Informatik IV
  • Sun Microsystems GmbH, Eco and Virtualization Services
  • Technische Universität Berlin (TUB), Fachbereich Komplexe und Verteilte IT-Systeme
  • Technische Universität Dortmund, IT und Medien Centrum (Konsortialführer)
  • Universität Stuttgart, Höchstleistungsrechenzentrum Stuttgart
  • NEC Europe Ltd.

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