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The increasing technological advances in server, storage and network technology is having an effect on the way you as an IT Professional need to operate the environment where this infrastructure runs from Indeed suppliers are increasingly telling you how these rooms should be set up. With increased emphasis on HVAC protocols and the exclusion of contaminants.
The main contaminate for computer rooms:
Particulate (Dust) the source of this dust can be numerous. The type of dust present can have differing effects. For example:
Carbon: from car exhausts and printer toner is brought in on feet, clothing and as airborne particles. Carbon can cause shorts as it is conductive, so is particularly troublesome in Server/Computer Rooms.
Organic Particulate: from people and the environment also finds it way into the computer room. This dust is the main cause of air ingress being restricted and causing equipment to overheat.
Metallic Fibre: Zinc is a good example, this can form in the Underfloor pressurised plenum and is transported by the air flow through your equipment. Zinc is very conductive so causes shorting, these fibres or Zink Whiskers as they are know are very small being less than 0.5 micron in width.
As stated this dust is transported into your critical environment from many source to completely stop this would be expensive and may be impossible.
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