The need for sustainable resources, power management and other green initiatives has increased because companies have started realizing the necessity of preserving our environment. Therefore, they are discovering approaches that can benefit the IT firm without harming the ecosystem. Data centers generate carbon footprint in large capacity and fail to manage the waste heat effectively. In the previous article, we discussed how data centers could reuse the waste heat and convert it into a useful resource.

This piece outlines crucial power-related consideration for virtualized infrastructure to use energy more efficiently in order to reduce waste and environmental impact.

Power management through virtualization

According to a report from analyst, IT enterprises use up 10% of the world energy. In order to reduce energy consumption, data centers need to implement green techniques in the infrastructure. One of the many approaches to saving power in data centers is virtualization, as it is its nature to merge several facilities into one server, which tends to eat less energy and demands relatively less cooling. So it is directly an energy-saving source.

Besides, there are other power management tools that can work in collaboration with the virtualized components to monitor, control and manage power consumption. This tool helps to understand how the power is used by the hardware component that lets you design a concept that can work accordingly to save energy. In addition, modifying the hardware settings of the virtualized server can assist in lowering energy. Mentioned below is one of the many power management solutions for virtual environment.

Controlling power with VMware vSphere

In order to monitor host servers, many organizations deploy virtualization management software that includes VMs and more. However, installing these power management tools lessens the complications of keeping mission-critical application online even in the advent of downtime or power outage. Some of the popular virtualization tools used for this purpose include VMware vCenter and Critix XenCenter in which the solutions are directly consolidated that lets them monitor, control and adjust the hardware and UPS system.
The policies of VMware are formulated to administer, control and modify power consumption. Though the VMware vCenter is installed with default management protocols, it can be modified to control the BIOS power options. Another essential tool of VMware is the Distributed Power Management tool that functions to supervise and manage the power consumption of the host server and deliver relevant resources to the virtual guest. However, it keeps a track on the cluster hosts and finds out whether they can be put in standby mode until they are actually required by the cluster. vSphere Distributed Resource Scheduler is a part of the DPM. DPM is capable of supplying energy to the down hosts, and thus, it makes it an ideal source to shift VMs to other host located within the specific cluster. When needed, these resources can be brought back to the online mode.
Note it that deploying Distributed Power Management (DPM) tool is not an easy process and requires several, comprehensive testing before you put it into complete action.

Apart from these, there are two other potential management solutions: Microsoft Hyper-V and Citrix XenServer power management. If you want to know more about power management through virtualization, you can always find more informative pieces over the web. But make sure to test the tools well in advance to avoid technical complexities later.

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