Home > Storage > PowerScale (Isilon) > Product Documentation > Data Efficiency > Next-Generation Storage Efficiency with Dell PowerScale Inline Data Reduction > Data reduction workflow
Data from network clients is accepted as is and makes its way through the OneFS write path until it reaches the BSW engine, where it is broken up into individual chunks. The inline data reduction write path consists of three main phases:
If both inline compression and deduplication are enabled on a cluster, zero block removal is performed first, followed by deduplication, and then compression. This order allows each phase to reduce the scope of work each subsequent phase.