Actions for The D0 online monitoring and automatic DAQ recovery [electronic resource].

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The D0 online monitoring and automatic DAQ recovery [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 2004.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
8 pages : digital, PDF file
Additional Creators
Fermi National Accelerator Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The DZERO experiment, located at the Fermi National Accelerator Laboratory, has recently started the Run 2 physics program. The detector upgrade included a new Data Acquisition/Level 3 Trigger system. Part of the design for the DAQ/Trigger system was a new monitoring infrastructure. The monitoring was designed to satisfy real-time requirements with 1-second resolution as well as nonreal-time data. It was also designed to handle a large number of displays without putting undue load on the sources of monitoring information. The resulting protocol is based on XML, is easily extensible, and has spawned a large number of displays, clients, and other applications. It is also one of the few sources of detector performance available outside the Online System's security wall. A tool, based on this system, which provides for auto-recovery of DAQ errors, has been designed. This talk will include a description of the DZERO DAQ/Online monitor server, based on the ACE framework, the protocol, the auto-recovery tool, and several of the unique displays which include an ORACLE-based archiver and numerous GUIs.
Report Numbers
E 1.99:fermilab-conf-03-467
fermilab-conf-03-467
Subject(s)
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Note
Published through SciTech Connect.
04/06/2004.
"fermilab-conf-03-467"
CHEP 03, La Jolla, CA (US), 03/24/2003--03/28/2003.
A. Haas.
Funding Information
AC02-76CH03000
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