Data Centre Cooling
For decades most Data Centre's utilised raised floors to inject cool air from underneath up to the racks in a back to back arrangement, this is called the Hot aisle Cold aisle method, but for some years now this method is considered outdated and rather inefficient for Data Centre cooling.
This method, as seen at left, involves hot air from hardware released from the rear door of a rack into the general Data Centre airspace, to assist with some form of hot air containment, most rows of racks will be so two rows are back to back, but, this still allows for hot air mixing with cold air as they are not truly contained for exhaust.
Many modern Data Centre builders have got it right in what makes far more sense using the all Cold aisle method, which involves an overhead plenum for the hot air to be expelled into, this means only cold air in your DC, and no mixing of cold and hot air, since the idea is to keep everything cool so your valuable hardware stays at a safe operating temperate.
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inefficient hot aisle - cold aisle approach
This method, as seen at left, involves hot air from hardware released from the rear door of a rack into the general Data Centre airspace, to assist with some form of hot air containment, most rows of racks will be so two rows are back to back, but, this still allows for hot air mixing with cold air as they are not truly contained for exhaust.
Many modern Data Centre builders have got it right in what makes far more sense using the all Cold aisle method, which involves an overhead plenum for the hot air to be expelled into, this means only cold air in your DC, and no mixing of cold and hot air, since the idea is to keep everything cool so your valuable hardware stays at a safe operating temperate.
Continue reading "Data Centre Cooling"