Green computing has become a national passion that is spreading globally, as a key element of the IT infrastructure, storage is expected to play its part by adopting green storage practices.

Storage vendors have increased the density of bits stored on a disk drive while reducing its cost on a per-gigabyte basis. With demand for storage skyrocketing--driven by the incessant computerization of all business processes and abetted by various regulations that require the retention of data, the importance of electronically stored information in litigation, the growth of data-intensive applications, and the adoption of new media-rich applications--storage managers have steadily expanded their storage environments.