Heat Dissipation and Airflow Requirements

The following table lists the maximum rate of heat released from a system. In order to cool the system properly, ensure that adequate airflow travels through the system.

Table 17  SuperCluster T5-8 Specifications

Comments Full Rack Half Rack Maximum 54,405 BTU/hour 31,013 BTU/hour 57.4 kJ/hour 32.69 kJ/hour Typical 45,422 BTU/hour 25,591 BTU/hour 47.8 kJ/hour 26.97 kJ/hour

Table 18  Exadata X5-2 Expansion Rack Specifications 

Configuration BTU/Hour kj/Hour EF Quarter rack Maximum 12,362 13,042 Typical 8,654 9,129 HC Quarter rack Maximum 11,516 12,149 Typical 8,061 8,505 Individual EF storage server Maximum 2,037 2,149 Typical 1,426 1,504 Individual HC storage server Maximum 1,825 1,926 Typical 1,278 1,348

The direction of airflow is front to back for the main and expansion racks.

Observe these additional requirements:

• Allow a minimum clearance of 914 mm (36 inches) at the front of the rack, and 914 mm (36 inches) at the rear of the rack for ventilation. There is no airflow requirement for the left and right sides, or the top of the rack.

• If the rack is not completely filled with components, cover the empty sections with filler panels.

Figure 20  Direction of Airflow Is Front to Back

Table 19  Airflow (Listed Specifications are Approximate)

Rack Approximate CFM Full rack Maximum Typical 2,523 2,103 Half rack Maximum Typical 1,436 1,185 Exadata X5-2 Expansion Rack, Extreme Flash, quarter rack Maximum Typical 572 401 Exadata X5-2 Expansion Rack, High capacity, quarter rack Maximum Typical 533 373 Individual Extreme Flash storage server Maximum Typical 94 66 Individual high capacity storage server Maximum Typical 85 59

Related Information

• Environmental Requirements

• Perforated Floor Tiles