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Jean-Philippe Baud , IT/PDP
In January 1999 CERN began to develop CASTOR ("CERN Advanced STORage manager"). It is an evolution of SHIFT, which has been used at CERN for all experiments in the 1990's. CASTOR is more scalable than SHIFT and should be able to handle data for the overlapping run of the NA48 and COMPASS experiments, the latter starting in 2000. Scalability issues are solved by using multi-threading and database technology instead of a flat file for the stager catalog. The first tests show that we get for the first time the full bandwidth of the drives and of the network. The software can be installed on any platform running Unix or Windows/NT.
See URL:
http://wwwinfo.cern.ch/pdp/castor/
A "Data Challenge" test (7 days at 100MB/s sustained, i.e. around 60TB) will be attempted for ALICE in February or March 2000.
Note: A possible common approach for the future of the Data Management software in HEP is currently being discussed by the major HEP institutes.
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