Speaker
Dr
Doris Ressmann
(Forschungszentrum Karlsruhe)
Description
The grid era brings upon new and steeply rising demands in data storage.
The GridKa project at Forschungszentrum Karlsruhe delivers its share of
the computation and storage requirements of all LHC and 4 other HEP
experiments. Access throughput from the worker nodes to the storage can
be as high a 2 GB/s. At the same time a continuous throughput in the
order of 300-400 MB/s into and out from GridKa must be guaranteed for
several months without interruption. The scalable storage and networking
concept is based on modular storage units that offer dCache, xrootd and
NFS access to over 1000 clustered hosts.
dCache directs over 300 pools with a total of 600 TB of disk storage.
The tape connection via separate SAN is managed by Tivoli Storage Manager (TSM)
using storage agents. The talk describes software
and hardware components, their integration and interconnects, then
focuses on the design criteria of the architecture. Plans for
enhancements and directions based on current experiences, future
expansion are also discussed.
Primary author
Dr
Doris Ressmann
(Forschungszentrum Karlsruhe)
Co-authors
Mr
Jos van Wezel
(Forschungszentrum Karlsruhe)
Dr
Silke Halstenberg
(Forschungszentrum Karlsruhe)
Ms
Stephanie Meier
(Forschungszentrum Karlsruhe)
