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.