The GridKa Tier-1 Computing Center within the ALICE Grid Framework

20th International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Park, Woojin J.^1,2 ; Christopher, Jung^1,2 ; Heiss, Andreas^1 ; Petzold, Andreas^1 ; Schwarz, Kilian^1,3

ALICE Offline Collaboration, Germany^1

Karlsruhe Institute of Technology, Karlsruhe

76131, Germany^2

GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt

64291, Germany^3

关键词: Computing center;    Disk space;    Integrated service;    Monitoring agents;    Monitoring tools;    Network connection;    Software problems;    Storage resources;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/513/6/062038/pdf
DOI  :  10.1088/1742-6596/513/6/062038

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The GridKa computing center, hosted by Steinbuch Centre for Computing at the Karlsruhe Institute for Technology (KIT) in Germany, is serving as the largest Tier-1 center used by the ALICE collaboration at the LHC. In 2013, GridKa provides 30k HEPSPEC06, 2.7 PB of disk space, and 5.25 PB of tape storage to ALICE. The 10Gbit/s network connections from GridKa to CERN, several Tier-1 centers and the general purpose network are used by ALICE intensively. In 2012 a total amount of ∼1 PB was transferred to and from GridKa. As Grid framework, AliEn (ALICE Environment) is being used to access the resources, and various monitoring tools including the MonALISA (MONitoring Agent using a Large Integrated Services Architecture) are always running to alert in case of any problem. GridKa on-call engineers provide 24/7 support to guarantee minimal loss of availability of computing and storage resources in case of hardware or software problems. We introduce the GridKa Tier-1 center from the viewpoint of ALICE services.