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Specs?
•2 to 5 racks
•Neat
•Easy to maintain
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Raised Floor?
• Of course!
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Height?
• 150 mm is good for wires
• 300 mm isn’t quite enough for forced air
• More than 150 requires cross bracing on small floors
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Tile Size?
• 600 mm for metric racks
• 2 foot for imperial racks
Use the right size tiles for your racks and equipment
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Integer math
• For a small room you want as many of the tiles to be removable as possible
• Cut tiles are a pain
• Typical building cuts the decorative flooring to fit the walls
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Walls
•Plasterboard on steel studs
•Consider putting wire mesh in the walls
•Security
•Helps keep RF energy out
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Floor
• Racks are heavy
• Ground floors may work best
• Reinforced flooring is expensive
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Insulation
•Pack in as much insulation as you can
•Consider non-fiberglass insulation
•Seal the room with a good plaster and paint
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Electrical
• Figure out what you need
• Then double that
• Then double it again
• Then double it again
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Power
• 4 Power points per rack is minimal
• Put your UPS and batteries elsewhere
• Consider several UPS circuits
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UPS
• Rolling blackouts for 2 hours
• Cheap UPS will fail
• Lots of batteries are heavy
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Comms
• Put IDF in machine room
• parallel all MDF circuits to machine room IDF
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Alarm
• PIR sensors in room
• Door switches
• one hooked to alarm system
• one hooked to computer monitor system
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Monitoring
• Door
• Temperatures
• Air conditioners
• Water on or under the floor
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Air Conditioning
• Dual split units
• Must be small enough to run off generator with emergency heat load
• A fan and a window can remove a great deal of heat in a hurry
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Footnotes
• TIA/EIA-942Data Center Standard
• Past talks by Geoffrey Day and Don Gingrich
• web.abnormal.com/computer_room
• Fergus Electrical 0438 855 707