No. 97 (00220)

Family name : Taylor
Given name : Lucas
Affiliation : Northeastern University
Abbreviation : CMS
E-mail address : Lucas.Taylor@cern.ch
Title : CMS Distributed Data Analysis Challenges
Authors : Lucas TAYLOR, on behalf of the CMS Collaboration
Abstract : 
In Spring 2004 CMS will undertake a 100 TeraByte-scale Data
Challenge (DC04) as part of a series of challenges in preparation
for running  at CERN's Large Hadron Collider.

During 1 month, DC04 must demonstrate the ability of the
computing  and software to cope with a sustained event data-taking
rate of 25 Hz, for a total of 50 million events.

The emphasis of DC04 is on the validation of the first pass
reconstruction and storage systems at CERN and the streaming of
events to a distributed  system of Tier-1, and Tier-2 sites
worldwide where typical analysis  tasks will be performed.

It is expected that the LHC Computing Grid project will provide a
set of grid services suitable for use in a real production
environment, as part of this data challenge. The results of this
challenge will be used to define the CMS software and computing
systems in their Technical Design Report.