B513 Planning Meeting, 18th March 2003

Present:           Tony Cass, Anne Funken, Jukka Lindroos, Tim Whibley

1.             Previous Minutes

  1. 4.2c) Only one of the UTP boxes, the one near the door from the operators’ corridor, can be moved.
  2. 3.5) Marcel has started on a plan to resupply equipment and is in contact with Jacques Toullieux.

2.             Substation Status

  1. The civil engineering work is essentially finished; in principle, only the barriers and the work noted at the provisional reception meeting remain to be done. Jukka noted, though, that the doors for the HV room do not have the grills foreseen in the plan. Natacha Lopez will contact Belloni to see if this can be fixed even though it was not noted at the provisional acceptance. Jukka will contact SC to ensure these grills are acceptable in a fireproof door. If not, he suggested that a fire damper could be added.
  2. The 18kV equipment installation has been completed and the tests completed successfully.
  3. The mechanical part of the HVAC specification will be ready by March 19th. The price enquiry will be sent out towards the end of April once the control and electrical supply elements are available. This delay is of no consequence for the overall planning.

3.             Machine Room Upgrade Status

  1. CS group have confirmed that not all network equipment needs to be connected to the critical UPS. Anne will order dual inputs for the two PDUs in this area to ensure an alternate supply during maintenance (and any future upgrade work). Anne commented that the “physics only” equipment must all be powered from a dedicated normabarre.
  2. This led to a discussion of the arrangements for the other two critical areas where the PDUs have only one input on the assumption that all equipment would be dual supply capable. Anne will investigate the possibility of adding a second input to the PDUs, but we should also look at options for supporting switches with a single power input. There is no immediate problem for maintenance as there is an alternative possibility to resupply the PDU attached to the critical UPS system. Flexibility for upgrades is reduced, however.
  3. The cable passages between the machine room and the vault will be blocked and then painted with a resin based paint to improve protection against water infiltration. Wouter van Baaren will contact Tim Whibley to arrange this work on the right hand side before the first equipment is installed there.
  4. The false ceiling along the Salève wall on the right hand side will be dismantled on March 19th. The company have been told of the need to stop dust spreading in the machine room.
  5. Installation of the new ducts will start from Monday with the inspection meeting at 9am. Anne asked that particular care be taken installing the duct near the critical PDUs and that this be placed as far away from th4e PDU as possible.
  6. The test with seven HVAC stations running will now take place at 16:30 on Monday 22nd. Noise measurements will be taken in the machine room and in the conference rooms on the first floor.

4.             B513 HVAC Planning

  1. The plan of the HVAC plant room is now complete and work has started on the plan of the chilled water piping. Once this is complete, expected to be in about a week, work will start on planning options for the installation of the new chiller.
  2. Tony emphasised the need for an update estimate of the HVAC upgrade costs before the Computing Resource Review Board meeting in April. This should have better estimates for the different elements of the work (machine room duct installation, new chiller, replacement for the corridor cooling, noise reduction measures for the conference rooms, and others as necessary). It is accepted that these estimates will be refined between now and the next C-RRB in October. The caveat that the state of the chilled water pipes is not yet known is also accepted. Jukka agreed to provide an improved estimate by March 26th.

5.             AOB

  1. Tony has a presentation from Intel covering data centre issues, notably cooling. He will check if this can be distributed.
  2. Tony noted that equipment with a consumption of about 380kW would be closely packed in the right hand side of the machine room over the next few months, with some heavy consumption equipment installed from April 5th. We should be prepared to make ad hoc arrangements to ensure that there is adequate cooling. Jukka considered that the system should adapt, opening dampers automatically as necessary. If not, dampers could be opened manually on the left hand side to arrange an improved air flow.
  3. Next Meeting: 2pm, Tuesday 20th April.