Home > Storage > PowerScale (Isilon) > Industry Solutions and Verticals > Media and Entertainment > PowerScale OneFS with Baselight by FilmLight: Best Practices and Configuration > Filename-based Prefetch in OneFS
PowerScale OneFS combines storage, volume management, and connectivity into a single system. By combining these storage layers into a cohesive whole, OneFS can deliver data to client systems with an intelligence that would otherwise not be possible. One of these technologies is Filename-based Prefetch.
When enabled, Filename-based Prefetch informs the OneFS file system to aggressively prefetch files with sequential names, such as image sequences. Filename-based Prefetch is configured in the OneFS command line and enabled on a per-directory basis. We do not recommend enabling Filename-based Prefetch on the entire file system because it can result in false prefetches.
The Filename Based Prefetch white paper provides a detailed description of Filename-based Prefetch and how to apply it. The paper also describes the various strategies that OneFS employs to lay out and access data on disk.
Filename-based Prefetch is required for 8K image sequence playback in Baselight.