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August 2005

August 2005. Forschungszentrum Jülich. in der Helmholtz-Gesellschaft. GRID@Large Panel “ Making real large-scale grids for real money-making users: why, how and when? ”. Achim Streit. Large?. ... in number of participating sites virtual organization management ... in compute capability

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August 2005

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  1. August 2005 Forschungszentrum Jülich in der Helmholtz-Gesellschaft GRID@Large Panel“Making real large-scale grids for real money-making users: why, how and when?” Achim Streit

  2. Large? • ... in number of participating sites • virtual organization management • ... in compute capability • resource management • ... in storage capacity • data and replica management, data access and transfer • ... in geographical expansion • network latency, bandwidth, availability • ... in amount of users • authentication/authorization, accounting/billing • ... in middleware platforms • interoperability

  3. Important aspects in large-scale Grids • easy and straightforward installation and configuration of Grid middleware platform • full interoperability of Grid middleware platforms, if more than one is used • seamless integration of new sites and resources in the Grid infrastructure • scalability and redundancy of major components and services for e.g. information, scheduling, accounting, ... • smooth and fast integration of new users at all sites • common rules, policies, and methods for e.g. security mechanisms, directory & file naming conventions, ... • powerful monitoring system for jobs and resources

  4. DEISA’s approach • UNICORE as Grid middleware platform • DEISA primer for new site administrators with all information about naming conventions, operational methods, configuration files, hostnames and ports of core services, ... • dedicated network from NRENs and GEANT between the DEISA sites for job migration and data transfer • GPFS as storage and access to data • LDAP for user data and integration in UNICORE User DataBase (UUDB) • LL-MC and LSF for resource management, co-allocation, job re-routing, and migration • Ganglia, Inca, and MDS2 for automated testing and monitoring

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