Some believe that green storage is specifically designed to reduce power and cooling costs.
The reality is that there are many ways to reduce environmental impact while enhancing the economics of data storage besides simply booting utilizing.
These include optimizing data storage capacity as well as boosting performance to increase productivity per watt of energy used when work needs to be done.
Some approaches require new hardware or software while others can be accomplished with changes to management including reconfiguration leveraging insight and awareness of resource needs.
Here are some related links:
Greg Schulz – StorageIO, Author “The Green and Virtual Data Center” (CRC)