Author: Bonaccorsi, E.
Paper Title Page
THCOBA01 Evolution of the Monitoring in the LHCb Online System 1408
 
  • C. Haen, E. Bonaccorsi, N. Neufeld
    CERN, Geneva, Switzerland
 
  The LHCb online system relies on a large and heterogeneous I.T. infrastructure : it comprises more than 2000 servers and embedded systems and more than 200 network devices. The low level monitoring of the equipment was originally done with Nagios. In 2011, we replaced the single Nagios instance with a distributed Icinga setup presented at ICALEPCS 2011. This paper will present with more hindsight the improvements we observed, as well as problems encountered. Finally, we will describe some of our prospects for the future after the Long Shutdown period, namely Shinken and Ganglia.  
slides icon Slides THCOBA01 [1.426 MB]  
 
THCOBA05 Control System Virtualization for the LHCb Online System 1419
 
  • E. Bonaccorsi, L. Granado Cardoso, N. Neufeld
    CERN, Geneva, Switzerland
  • F. Sborzacchi
    INFN/LNF, Frascati (Roma), Italy
 
  Virtualization provides many benefits such as more efficiency in resource utilization, less power consumption, better management by centralized control and higher availability. It can also save time for IT projects by eliminating dedicated hardware procurement and providing standard software configurations. In view of this virtualization is very attractive for mission-critical projects like the experiment control-system (ECS) of the large LHCb experiment at CERN. This paper describes our implementation of the control system infrastructure on a general purpose server-hardware based on Linux and the RHEV enterprise clustering platform. The paper describes the methods used , our experiences and the knowledge acquired in evaluating the performance of the setup using test systems, constraints and limitations we encountered. We compare these with parameters measured under typical load conditions in a real production system. We also present the specific measures taken to guarantee optimal performance for the SCADA system (WinCC OA), which is the back-bone of our control system.  
slides icon Slides THCOBA05 [1.065 MB]