"The Total Economic Impact™ (TEI) of Isilon's Clustered Storage System" is a Forrester Consulting Study commissioned by Isilon which examines the total economic impact and return on investment (ROI) that enterprises may realize by deploying clustered storage. Forrester Consulting conducted a series of in-depth interviews with four organizations currently using Isilon's clustered storage systems and found that these companies achieved benefits including lower upfront costs, fewer administrative resources, less training and professional services, and cost avoidance of traditional storage media.

The Forrester study concluded that on average, the interviewed Isilon customers achieved the following benefits over traditional storage solutions:

• 97 percent reduction in management resources.
• 22 percent increase in storage utilization which resulted, for an environment of the size used in the study, in a 37 percent decrease in the volume of storage capacity required.

The overall result of these advantages was a risk-adjusted ROI of 125 percent and a payback period within five months.