Home > Storage > PowerScale (Isilon) > Industry Solutions and Verticals > Media and Entertainment > PowerScale OneFS: A Metadata Driven Approach to On Demand Tiering > Combining DataIQ API and OneFS API for storage tiering
Combining the DataIQ and OneFS APIs provides all the tools required for doing on demand, metadata-based data tiering within a OneFS file system. The process for this technique is pulling a list of files that have been tagged in DataIQ and applying those tags as file system extended attributes on the files themselves. From there, predefined File Policies can be applied to move data between node pools based on extended attributes.