Speaker
Dr
John Kennedy
(LMU Munich)
Description
The organisation and operations model of the ATLAS T1-T2 federation/cloud associated to the GridKa T1
in Karlsruhe is described. Attention is paid to cloud level services and the experience gained during
the last years of operation.
The ATLAS GridKa Cloud is large and divers spanning 5 countries, 2 ROC's and is currently comprised of 13
core sites. A well defined and tested operations model in such a cloud is of the utmost importance.
We have defined the core cloud services required by the ATLAS experiment and ensured that they are performed
in a managed and sustainable manner. Services such as Distributed Data Management involving data
replication,deletion and consistency checks, Monte Carlo Production, software installation and data
reprocessing are described in greater detail.
In addition to providing these central services we have undertaken several cloud level stress tests and developed
monitoring tools to aid with cloud diagnostics. Furthermore we have defined good channels of communication
between ATLAS, the T1 and the T2's and have pro-active contributions from the T2 manpower.
A brief introduction to the GridKa cloud is provided followed by a more detailed
discussion of the operations model and ATLAS services within the cloud.
Finally a summary of our experience gained while running these services is presented.
| Presentation type (oral | poster) | oral |
|---|
Author
Dr
John Kennedy
(LMU Munich)
Co-authors
Dr
Andrzej Olszewski
(Institute of Nuclear Physics Krakow)
Dr
Cedric Serfon
(LMU Munich)
Dr
Guenter Duckeck
(LMU Munich)
Dr
Kendall Reeves
(The University of Wuppertal)
Dr
Simon Nderitu
(The University of Bonn)
