27 September 2004 to 1 October 2004
Interlaken, Switzerland
Europe/Zurich timezone

Beyond Persistence: Developments and Directions in ATLAS Data Management

29 Sep 2004, 10:00
1h
Coffee (Interlaken, Switzerland)

Coffee

Interlaken, Switzerland

Board: 39
poster Track 4 - Distributed Computing Services Poster Session 2

Speaker

D. Malon (ANL)

Description

As ATLAS begins validation of its computing model in 2004, requirements imposed upon ATLAS data management software move well beyond simple persistence, and beyond the "read a file, write a file" operational model that has sufficed for most simulation production. New functionality is required to support the ATLAS Tier 0 model, and to support deployment in a globally distributed environment in which the preponderance of computing resources--not only CPU cycles but data services as well--reside outside the host laboratory. This paper takes an architectural perspective in describing new developments in ATLAS data management software, including the ATLAS event-level metadata system and related infrastructure, and the mediation services that allow one to distinguish writing from registration and selection from retrieval, in a manner that is consistent both for event data and for time-varying conditions. The ever-broader role of databases and catalogs, and issues relatedto the distributed deployment thereof, are also addressed.

Primary authors

A. Schaffer (LAL Orsay) D. Malon (ANL)

Presentation materials