The document compares and contrasts Compellent, EMC VNX, HP EVA, and NetApp storage solutions. It notes that Compellent has been built from the ground up to be truly virtualized storage with multiple automated features, unique flexible scale up and out architecture to avoid forklift upgrades, and advanced pooling of mixed disk types and RAID. In contrast, the other solutions have more limited automation, virtualization, and flexibility requiring disruptive forklift upgrades.