Compellent provides virtualised storage and automated data management, including tiering and thin provisioning, for enterprise and cloud-computing environments.
Dell said the acquisition expands its portfolio of enterprise storage to help customers better manage data growth, reduce costs and simplify the management of IT infrastructure.
"Compellent is a natural complement to Dell's expanding enterprise storage portfolio. The Compellent storage platform will enable Dell to provide customers additional mid- and high-end network storage solutions that simplify and reduce the cost of data management," said Brad Anderson, senior vice-president at Dell's enterprise product group.
"Compellent's design focus on intelligently managing data to increase efficiency, agility and resiliency is consistent with Dell's approach of building solutions that can quickly scale to meet the most demanding enterprise environment," said Anderson.
Phil Soran, CEO of Compellent, added: "With Dell's scale and technology leadership, we accelerate the adoption of our virtualised platform, Fluid Data, to redefine the value of enterprise storage for data centres and cloud computing."
The acquisition is expected to close in early 2011.
Dell lost out in a bidding war with HP for specialist storage supplier 3Par earlier this year, after HP closed the deal at $1.6bn. EMC announced it will acquire data storage firm Isilon for $2.25bn (£1.4bn) by the end of the year.