24 February 2014 to 1 March 2014
Asia/Novosibirsk timezone

ATLAS TDAQ application gateway upgrade during LS1

25 Feb 2014, 17:15
Poster Trigger, electronics and DAQ Posters


Aleksandr Korol (Budker Institute of Nuclear Physics)


The ATLAS Gateway service is implemented with a set of dedicated computer nodes to provide a fine-grained access control between CERN General Public Network (GPN) and ATLAS Technical Control Network (ATCN). ATCN connects the ATLAS online farm used for ATLAS Operations and data taking, including the ATLAS TDAQ (Trigger and Data Aquisition) and DCS (Detector Control System) nodes. In particular, it provides restricted access to the web services (proxy), general login sessions (via SSH and RDP protocols), NAT and mail relay from ATCN. At the Operating System level the implementation is based on virtualization technologies. Here we report on the Gateway upgrade during Long Shutdown 1 (LS1) period: it includes the transition to the last production release of the CERN Linux distribution (SLC6), the migration to the centralized configuration management system (based on Puppet) and the redesign of the internal system architecture.

Primary author

Aleksandr Korol (Budker Institute of Nuclear Physics)

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