B513 Planning Meeting, 29th August 2003

Present:           Tony Cass, Anne Funken, Jukka Lindroos, Jose Miranda-Vizuete

1.             Previous Minutes

  1. Approved with minor corrections.

2.             Substation status

  1. Substation construction advances well, especially with the good weather. The price enquiry for the false floor has been prepared and will be sent out soon.
  2. Orders for 400V switchboards and transformers have to be placed by the end of November. Different options are still being studied for the transformers, however.
  3. Although we are assuming that filters won’t be required, amarket survey for filters is being prepared to ensure that we will be able to install filters if load factors turn about to be poor.
  4. On this point, it was noted that we are still waiting for a report on the electrical load charecteristics of the disk servers.

3.             Machine Room upgrade status

  1. The electrical supply to the B513-R corridors and the user/openlab areas will be reorganised as from September 8th. Tony will warn users but would like to have the detailed planning. The power sockets under windows will be usable during this work.
  2. PDUs will therefore be removed as from September 15th. As from this date the barn wall repainting and plasterboard installation can start. For this, cable routes need to be defined for IT cables into the barn and for the switchboard supply cables.
  3. Ann asked for a decision on how many normabarre connection boxes to order and of which type.Tony suggested that this question be discussed with Marcel. It may be sufficient to buy connectors only for the 2004/5 needs rather than one for each slot.

4.             Planning status

  1. Tony noted that there is still no precise plan for the upgrade of airconditioning equipment, this concerning both the improvements required to cool equipment in the machine room and to any possible changes to the infrastructure to ensure adequate reliability.
  2. Unfortunately, Jukka is still busy with CNGS planning and won’t be able to devote time to B513 planning before mid-September. Realistic plans for machine room cooling can be prepared for end-September, but plans to improve reliability and/or redundance of the overall hvac equipment won’t be available before the end of the year. Anne commented here, though, that some information would be required by the end of October to understand the impact on substation equipment.

5.             AOB

  1. There was some discussion as to the feasibility of completely isolating the machine room from the rest of the building. This could be difficult, not least because the wall between the machine room and the barn cannot be made higher except with very light material. This issue will be studied more together with the arrangements for machine room cooling.
  2. Next meeting: 2pm, Friday 19th September.