New Computer Room of the Computing Center
Short Description
- Shutdown of servers and personal computers is not longer required during technical maintenance
- High availability and high tolerance for individual errors
- Energy-saving operation and permanent measurement of power consumption
- Monitoring of the technical systems by the process control system and by the computing center
- Reserve for high performance computing (HPC) and servers with high power requirements
- Design: 200 kWh max. electrical power
Fig.: New Computer Room of the Computing Center
Cooling
- Cooling aisle concept with a combination of 8 air-cooled racks for standard servers and 2 to a max. of 8 water-cooled Cool Therm Racks for HPC
- 60-cm raised floor exclusively for climate control (cold air and cold water supply)
- Circulating air cooling equipment in the raised floor as a floor cooler (12 floor coolers in the cold aisle, 4 floor coolers in the warm aisle)
- Wires laid above the racks, separate cable ducts for electricity and data
- Redundant uninterrupted power supply (UPS) A and B in each rack
Fig.: "Cold aisle concept"
Power supply
- Own LVMD (low voltage main distribution in the basement) for the computer room
- More opportunities for the TB, to also serve the new computing room when maintenance needed.
- Separate A/B with UPS
- 120 kWh UPS capacity (can be upgraded to 240 kWh)
- Except the cooling machines, everything is powered via UPS.
- Central network room can be renovated/modified while the new computing room is in operation
- Emergency power system (EPS): Diesel generator with 640 kWh output and 3,000 litre tank (sufficient for approx. 60 hours at 200 kWh)
- In case of power outage: 10 min. power bridging via UPS and cold reservoir. EPS starts after 2 seconds and can supply the computer room with power after <1 min.
You can find more information on the new computing room in the Project Report.
The IT-officer of the TUHH (DVB) were informed about the project in a DVB-meeting in April 2014.
Information on the old computing room. of the computing center.