The compelling cost and management benefits of virtualization have sparked virtual machine (VM) sprawl inside corporate data centers. At the same time, organizations are experiencing explosive data growth. Storage is a critical component of any data center, including growing virtual environments, since VMs actually reside on the underlying storage infrastructure. An inferior storage infrastructure can severely restrict the benefits of virtualization and create performance, reliability and agility challenges. This paper considers current data center storage challenges and outlines features of Dell EqualLogic PS Series SAN arrays that meet the demands of increasingly virtualized IT environments while optimizing investments.