LessWatts.org: Saving Power on Intel systems with Linux

With the whole green motion going around, I was happy to join lesswatts.org to try and limit the power consumed by my servers. Although we use VMware extensively to bundle VMs onto ESX hosts, there still are many bare metal servers for one reason or another.

We're experimenting with VMware's experimental DPM (Dynamic Power Management) to collect and pack idle VMs onto a single host. DPM then suspends the host and saves power. In the morning, when loads increase, the VMs are VMotioned off the hosts again, after these are reawakened. For Linux, I'm gonna give PowerTOP a spin and test it in the coming year to try and optimize my Oracle Enterprise Linux servers.

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