The density of today’s storage systems, the insatiable demand for storage, and the rising cost of energy are harbingers of an impending energy crisis in the data center. It has been predicted that within the next several years, half of the world’s data centers will become obsolete due to power and space constraints, and that energy costs will eat up to one-third of IT budgets.
Over the past decade, Fujitsu has addressed the growing need for “green” technology by embedding the vision of environmental awareness into its corporate DNA with ecologically responsible product design and technology leadership.
ETERNUS storage systems from Fujitsu have been designed to accommodate the power and ecological demands of our customers.  As a leader in delivering RoHS-compliant storage, Fujitsu recognized the need to tackle the problem of toxic e-waste, and continues to demonstrate insight and leadership by addressing rising power demands and consumption. With LUN migration, concatenation, and expansion capabilities, ETERNUS’ Virtual LUNs deliver the ability to improve capacity utilization, which results in reduced demand and consequent power savings. 
All ETERNUS storage systems support MAID’s (Massive Array of Idle Disks). MAID for Green ROI allows customers to configure ETERNUS to spin-down selected drives by RAID group—thereby creating a third tier of addressable storage space ideal for archiving and low-availability requirements. MAID provides increased energy conservation and natural cooling by deferring disk spindle up-time. When you measure the cost of running other storage systems against ETERNUS you will see a measurable saving which improves as the amount of data you need to store increases. MAID is particularly useful in situations where there is a system sleep period during which data is not being accessed. The power savings can be significant. With effective use of MAID, customers may realize power savings as high as 20% from their ETERNUS storage. 

For more information on E4000/8000, please visit our ETERNUS website.