21-27 March 2009
Prague
Europe/Prague timezone

System Administration of ATLAS TDAQ Computing Environment

26 Mar 2009, 08:00
1h
Prague

Prague

Prague Congress Centre 5. května 65, 140 00 Prague 4, Czech Republic
Board: Thursday 081
poster Online Computing Poster session

Speaker

Mr Alexander Zaytsev (Budker Institute of Nuclear Physics (BINP))

Description

This contribution gives a thorough overview of the ATLAS TDAQ SysAdmin group activities which deals with administration of the TDAQ computing environment supporting High Level Trigger, Event Filter and other subsystems of the ATLAS detector operating at the LHC machine at CERN. The current installation consists of approximately 1500 netbooted nodes managed by more than 60 dedicated servers, about 40 multi-screen user interface machines installed in the control rooms and various hardware and service monitoring machines as well. In the final configuration, the online computer farm will be capable of hosting tens of thousands applications running simultaneously. The needs of software are matched by the two level NFS based solution. Hardware and networking management systems of ATLAS TDAQ are based on NAGIOS and MySQL cluster behind it for accounting and storing the monitoring data collected, IPMI tools, CERN LANDB and the dedicated tools developed by the group, e.g. ConfdbUI. The user management schema deployed in TDAQ environment is founded on the authentication and role management system based on LDAP. External access to the Point1 facilities is provided by means of the gateways supplied with an accounting system as well. Current activities of the group include deployment of the centralized storage system, testing and validating hardware solutions for future use within the ATLAS TDAQ environment including new extreme multi-core blade servers, developing GUI tools for user authentication and roles management, testing and validating SLC5 64-bit OS, and upgrading the existing TDAQ hardware components, authentication servers and the gateways.

Summary

This contribution gives a thorough overview of the ATLAS TDAQ SysAdmin group activities which deals with administration of the TDAQ computing environment supporting High Level Trigger, Event Filter and other subsystems of the ATLAS detector operating at the LHC machine at CERN.

Presentation type (oral | poster) oral

Primary authors

Mr Alexander Zaytsev (Budker Institute of Nuclear Physics (BINP)) Dr Gokhan Unel (Department of Physics, University of California, ATLAS Experiment (CERN)) Dr Marc Dobson (ATLAS Experiment (CERN))

Co-authors

Mr Adeel Adeel-Ur-Rehman (National Centre for Physics (NCP), Quaid-E-Azam University) Mr Anatoly Oreshkin (Petersburg Nuclear Physics Institute (PNPI)) Mr Andrei Dumitrescu (Polytechnic Institute of Bucharest, ATLAS Experiment (CERN)) Mr Costin Caramarcu (National Institute of Physics and Nuclear Engineering (IFIN-HH), ATLAS Experiment (CERN)) Mr Florentin Bujor (Polytechnic Institute of Bucharest, ATLAS Experiment (CERN)) Ms Irina Dumitru (University of Bucharest) Mr Jan Benes (Zapadoceska Univerzita v Plzni) Mr Liviu Valsan (University of Bucharest) Mr Marius Leahu (Polytechnic Institute of Bucharest, ATLAS Experiment (CERN))

Presentation Materials