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Groups belonging to the Computational Chemistry and Biomedical domains access the center in an opportunistic way through Grid services. Moreover, local theoretical physics and astronomy groups access the Tier-1 resources and services. Most of these non-LHC user communities use Grid technologies at some level, but in a few cases the activities are performed only locally or using ad-hoc tools. For a more complete description, please refer to the User Support page [4].
The Tier-1 operations are structured in 4 groups: the computing farm is man-aged by the Farming group; the Mass Storage System, the databases and thetransfer service are managed by the Data Management group; the LAN and WAN connections of CNAF are managed by the Network group and, last butnot least, the facilities of the center are managed by the Facility Management group. Besides these groups, the User Support group takes care of helping theusers to efficiently exploit the Data Center infrastructure.
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