North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: rack power question
At 2:14 PM -0300 3/23/08, Ray Burkholder wrote: >My desktop has a 680 Watt power supply, but according to a meter I once >connected, it is only running at 350 to 400 Watts. So if a server has a >980W power supply, does the rack power need to be designed to handle >multiples of such a beast, even though the server may not come close >(because it may not be fully loaded with drives or whatever)? Wouldn't it >be better to do actual measurements to see the real draw might be? Yes, if you perform the measurements both at peak cpu load and during power-up (quite a bit of well-known gear maxes out its power draw only during the power-on sequence). Also, you're still going to want to size the power drop so that the measured load won't exceed 80% capacity due to code. /John
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