By allowing multiple servers to function on a single hardware platform, fewer servers are needed to support the enterprise. Virtualization, therefore, has multiple "green" aspects that help make modern businesses environmentally sustainable. These aspects are as follows:
1. Power conservation. Although servers that host virtualized resources are not necessarily more energy efficient than a standalone server, the reduced number of servers required to support a business or data center reduces power demands by default.
2. Manufacturing. Because fewer servers are required to support modern businesses, this reduces the amount of raw materials that must be extracted from the earth. Additionally, recycled materials can be used in green computing products to induce further reductions in resources required for the manufacturing process.
3. External factors. Some of the benefits of virtualization are incidental with implementation. Fewer physical servers means less space is needed to perform the same functions. This reduces the scope required for buildings, further reducing the footprint of a business on the environment. Virtualization typically reduces IT staffing requirements, taking more commuters and off the road.
Virtualization obviously carries enormous potential as a key concept of green computing, making it possible for companies to enjoy enormous cost savings in addition to environmental sustainability.