The three layers of the traditional storage model—file system, volume manager, and data protection—have evolved over time to suit the needs of small-scale storage architectures but introduce significant complexity and are not well adapted to petabyte-scale systems. The OneFS operating system replaces all of these, providing a unifying clustered file system with integrated scalable data protection, and obviating the need for volume management. OneFS is a fundamental building block for scale-out infrastructures, allowing for massive scale and tremendous efficiency, and is used to power all Dell PowerScale NAS storage solutions.
OneFS is a fully symmetric file system with no single point of failure

[Product Management UDS (sharepoint.com)](https://dell.sharepoint.com/sites/OneUDS/SitePages/00-002-Product-Management-UDS.aspx)

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Technical overview pdf: [Dell PowerScale OneFS: Technical Overview (delltechnologies.com)](https://www.delltechnologies.com/asset/en-us/products/storage/industry-market/h10719-wp-powerscale-onefs-technical-overview.pdf)