* Maintaining a high backup success rate: 3%

* Deploying effective multipath solutions: 2%

* Other: 1%

Source:Forrester Research Inc. survey of 124 global IT decision-makers currently using x86 server virtualization technology, September-October, 2008

Hill notes that many businesses unthinkingly use costly, high-performance Fibre Channel storage environments for both types of data. Yet splitting up fixed and active data makes it possible to use less-expensive storage technologies for less volatile information. "You can use what's called capacity storage instead of performance storage," Hill says.