This presentation from Spectra Logic describes the BlackPearl Deep Storage Appliance. "BlackPearl enables the use of tape to easily store massive volumes of data objects and is ideal for any compute environment that needs to store data for long periods of time. The appliance sets the stage for the adoption of deep storage tiers across new and expanding use cases that currently cannot easily access the absolute lowest cost storage option due to the historic lack of RESTful, web-based interfaces to tape library storage,” said Molly Rector, executive vice president product management and worldwide marketing, Spectra Logic." Learn more: http://inside-bigdata.com/2013/10/10/deep-storage-low-cost-tape-storage-comes-hadoop/