Bladewatch.com

http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=14406

For example, other presentations at the forum dealt with “virtualization” of server tasks. To date, server operating systems have been designed to distribute the processing load across all available servers. Virtualization would make it possible to shift processes dynamically so some server blades could be shut down at off-peak times. This is critical to conservation because the load presented by each active blade tends to be constant, regardless of how hard it’s working.

An article about electrical aspects of the server and datacenter power usage, interesting, the comment above is very relevant.  With vmware I might purchase a cabinet of 48 blades, ESX them, make them my development farm, the advantage with vmware is I can start filling the ESX servers up and as I need the capacity turn on the remaining blades, only using the power when I need it.

This of course is relevant on the basis that typically the server estate is not near 100% utilization, therefore, migrate the boxes to vmware, get rid of the hardware and relate in effect your processing to your power utilization.

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