Hosting services provider Rackspace Hosting has expanded its storage portfolio to include dedicated network-attached storage (DNAS), a scalable file-based storage offering for enterprises requiring access to large storage. Built on NetApp FAS2000 series storage system, Rackspace DNAS comes in multiple flexible configurations designed by Rackspace, which include several data protection solutions to offer instant backup and data recovery while ensuring the security and reliability of customers' stored data.