Superdome Servers - I/O Expansion Cabinet Guide, Fifth Edition

Appendix B
Site Requirements
Space Requirements
203
Alignment with SuperDome Cabinet
The IOX will be installed so that the front surface of the IOX is in line with the front surface of the Half
Dome, as illustrated in Figure B-1.
Figure B-1 IOX Cabinet Footprint Next to superdome Cabinet
Operational Space Requirements
Other factors must be considered along with the basic equipment dimensions. Reduced airflow around
equipment causes overheating, which can lead to equipment failure. Therefore, the location and orientation of
air conditioning ducts, as well as airflow direction, are important. Obstructions to equipment intake or
exhaust airflow must be eliminated.
The locations of lighting fixtures and utility outlets affect servicing operations. Plan equipment layout to take
advantage of lighting and utility outlets. Do not forget to include clearance for opening and closing equipment
doors.
Clearance around and above the cabinets must be provided for proper cooling airflow through the equipment.
If other equipment is located so that it exhausts heated air near the cooling air intakes of the computer
system cabinets, larger space requirements are needed to keep ambient air intake to the computer system
cabinets within the specified temperature and humidity ranges.
Space planning should also include the possible addition of equipment or other changes in space
requirements. Equipment layout plans should also include provisions for the following:
• Channels or fixtures used for routing data cables and power cables
• Access to air conditioning ducts, filters, lighting, and electrical power hardware
• Power conditioning equipment