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‘Rack Status‘

‘Rack Status‘. Jean-Pierre Vanuxem, PH-AIS. Rack Status (1). Layout and Allocation: known to ~ 100% ! 250 racks to be used + 52 spare locations documented in: EDMS ALICE-SER-SPC-021, v.3 Power: known to ~ 100 % ! type: 1-phase / 3-phase and standard power / UPS

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‘Rack Status‘

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  1. ‘Rack Status‘ Jean-Pierre Vanuxem, PH-AIS JPV, TB of Nov.15th, 2005

  2. Rack Status (1) • Layout and Allocation: • known to ~ 100% ! • 250 racks to be used + 52 spare locations • documented in: EDMS ALICE-SER-SPC-021, v.3 • Power: • known to ~ 100% ! • type: 1-phase / 3-phase and standard power / UPS • documented in: EDMS ALICE-SER-SPC-022, v.3 • Contents: • known to ~ 80% at sub-rack level • documented under ‘Rack contents’ at: http://aliceinfo.cern.ch/Collaboration/Technical_Coordination/ElectronicsRacks.html • Help from all sub-detectors is still required to complete this task ! JPV, TB of Nov.15th, 2005

  3. Rack Status (2) • Purchase of Infrastructure Components: • Standard: turbine units + air deflectors, heat exchangers, ventilation units, water collectors, brackets, adaptors, fittings, etc. • Non-standard: cooling doors for PC racks (CR1-CR3), internal power distribution boxes (UX25) • Installation: • Cooling: TS-CV • ‘Hazemeyer’ switchboards + ZTBF32 modules: TS-EL • Rack enclosures: ALICE Integration Team (AIT) • Primary power to ‘Hazemeyer’ + control: TS-EL • Secondary power to racks + control: TS-EL + DCS team • Rack infrastructure components: AIT JPV, TB of Nov.15th, 2005

  4. Guidelines to maintain costs low • Recuperate existing LEP equipment • CV (L3): water cooling for racks + air conditioning systems in CR1-CR4 • Mechanics (L3, ALEPH): Rack enclosures + Other Rack components (back doors, brackets, etc.) • Electricity (L3): • UPS units (80 kVA + 60 kVA) • Hazemeyer Switchboards with ZTBF32 modules • Make use of COTS (if possible from CERN stores) • CV: turbines, ventilation units • Mechanics: • rack enclosures  new ‘LHC racks’ 52U/41U, 1000mm deep • VME crates (6U/9U) • Electricity: VME-PS, LVPS, HVPS, Cables, Connectors, • Group Orders with other LHC experiments • cooling doors for PC racks (together with LHCb) • Organize maintenance locally at CERN • define the role of PH-ESS Electronics Pool JPV, TB of Nov.15th, 2005

  5. Installation details (1) • Civil Engineering (TS) • All done, except false floors in C and D areas which are being built • General Cooling and Ventilation (TS-CV) • All done, except in C and D • General Power (TS-EL) • Mostly done in CR1-CR5 + A + B • Rack Placement (AIT) • All racks in CR1-CR5 + A + B are installed • Basic Rack Equipment (AIT) • All 250 racks will need to be equipped with infrastructure components during 1st semester 2006 JPV, TB of Nov.15th, 2005

  6. JPV, TB of Nov.15th, 2005

  7. Installation details (2) • Individual Rack Powering (TS-EL + AIT) • A few racks (5 ?) are already powered for tests in CR1+ CR3 • PX24 (CR1-CR5) : all racks will be powered in April 2006 • UX25 (A + B + C + D): May 2006 • Power Control (TS-EL) • Done by ‘ENS’ at the level of Hazemeyer ZTBF32 modules • PLC of type ‘Premium’ (from Schneider) • DCS as ‘client’ to ENS ‘server’ • Entire system ready in July 2006 JPV, TB of Nov.15th, 2005

  8. And now follows a pictorial trip, around and inside the ALICE racks: ‘ALICE in Rackland’ . . . JPV, TB of Nov.15th, 2005

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