http://itknowledgeexchange.techtarget.com/server-virtualization/saving-money-by-using-virtualization/ A SearchServerVirtualization.com blog Sun, 29 Nov 2009 01:14:05 +0000 http://wordpress.org/?v=2.6.2 http://itknowledgeexchange.techtarget.com/server-virtualization/saving-money-by-using-virtualization/#comment-1389 Eric Siebert Fri, 25 Apr 2008 17:23:59 +0000 http://servervirtualization.blogs.techtarget.com/2008/04/16/saving-money-by-using-virtualization/#comment-1389 Actual power consumption will vary based on how a server is configured. If you take a server like the HP DL380 it comes with dual 800W power supplies. How much of the 800 watts the server uses will be based on the type/number of cpu's, number of adapter cards, number of hard drives and the amount of memory. 750 watts was used because it was the default for the calculator. Actual power consumption will vary based on how a server is configured. If you take a server like the HP DL380 it comes with dual 800W power supplies. How much of the 800 watts the server uses will be based on the type/number of cpu’s, number of adapter cards, number of hard drives and the amount of memory. 750 watts was used because it was the default for the calculator.

]]> http://itknowledgeexchange.techtarget.com/server-virtualization/saving-money-by-using-virtualization/#comment-1388 Randall Cole Thu, 24 Apr 2008 17:21:50 +0000 http://servervirtualization.blogs.techtarget.com/2008/04/16/saving-money-by-using-virtualization/#comment-1388 The example of 750 W/server is a bit high. PG&E uses 225 W/server for the average energy consumption of volume servers, as published in the August 2007 EPA report to Congress, to calculate the energy efficiency incentives for server virtualization/consolidation. According to that report, volume servers constitute 85% of the power consumption of all servers in the US. Manufacturers typically publish nameplate power consumption numbers for servers that are at least twice the actual power consumption. There is no reliable relationship between nameplate and actual power consumption. The example of 750 W/server is a bit high. PG&E uses 225 W/server for the average energy consumption of volume servers, as published in the August 2007 EPA report to Congress, to calculate the energy efficiency incentives for server virtualization/consolidation. According to that report, volume servers constitute 85% of the power consumption of all servers in the US. Manufacturers typically publish nameplate power consumption numbers for servers that are at least twice the actual power consumption. There is no reliable relationship between nameplate and actual power consumption.

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