Author: Page, S.T.
Paper Title Page
THHD3O08 Upgrades to the Infrastructure and Management of the Operator Workstations and Servers for Run 2 of the CERN Accelerator Complex 1158
 
  • A. Bland, S.T. Page
    CERN, Geneva, Switzerland
 
  The Con­trols Group of the CERN Beams De­part­ment pro­vides more than 400 op­er­a­tor work­sta­tions in the CERN Con­trol Cen­tre (CCC) and tech­ni­cal build­ings of the ac­cel­er­a­tors, plus 300 servers in the server room (CCR) of the CCC. Dur­ing the long shut­down of the ac­cel­er­a­tors that started in Feb­ru­ary 2013, many up­grades were done to im­prove this in­fra­struc­ture in view of the higher-en­ergy LHC run. The En­gi­neer­ing De­part­ment im­proved the elec­tri­cal sup­ply with fully re­dun­dant UPS, on-site diesel gen­er­a­tors and for the CCR, water and air cool­ing sys­tems. The In­for­ma­tion Tech­nol­ogy De­part­ment in­creased net­work band­width for the servers by a fac­tor of 10 and in­tro­duced a pilot mul­ti­cast ser­vice for the video stream­ing of the ac­cel­er­a­tor sta­tus dis­plays and beam cam­eras. The Con­trols Group re­moved de­pen­den­cies on net­work file sys­tems for the op­er­a­tor ac­counts they man­age for the Linacs, Booster, PS, ISOLDE, AD, CTF3, SPS, LHC and cryo­gen­ics. It also moved away from sys­tem ad­min­is­tra­tion based on shell scripts to using mod­ern tools like ver­sion-con­trolled An­si­ble play­books, which are now used for in­stal­la­tion, day-to-day re-con­fig­u­ra­tion and staged up­dates dur­ing tech­ni­cal stops.  
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