Compellent Technologies, Inc., was an American manufacturer of enterprise computer data storage systems that provided block-level storage resources to small and medium sized IT infrastructures. The company was founded in 2002 and headquartered in Eden Prairie, Minnesota. Compellent's flagship product, Storage Center, is a storage area network (SAN) system that combines a standards-based hardware platform and a suite of virtualized storage management applications, including automated tiered storage through a proprietary process called "DataProgression", thin provisioning and replication. The company developed software and products aimed at mid-size enterprises and sold through a channel network of independent providers and resellers. Dell acquired the company in February 2011, after which it was briefly a subsidiary known as Dell Compellent.