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The CMS Dataset Bookkeeping System (DBS) is a database and user API that indexes event-data data for the CMS Collaboration. The primary functionality is to provide cataloging by production and analysis operations and allow for data discovery by CMS physicists.

The CMS Data Aggregation Service provides information about data stored across the CMS data services (DBS 3, PhEDEx, TMDB, etc). You can use the web interface at the link or the command-line client to run your queries.

For more information about DBS please visit DBS 3 API documentation. For any enquiries, please contact:

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Last updated: Fri Aug 8 11:00 CET 2014